The 20 Best Methylmalonic Acidemia with Homocystinuria Doctors Near Me in Maryland, US

Find the Top Methylmalonic Acidemia with Homocystinuria Experts and Specialists

Last Updated: 04/28/2026

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MediFind found 40 doctor with experience in Methylmalonic Acidemia with Homocystinuria near Maryland, US. Of these, 33 are Experienced, 6 are Advanced and 1 are Distinguished.

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40 providers found
    Distinguished in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine
    Distinguished in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine

    Signaturemd

    1100 Mercantile Ln Ste 135, 
    Upper Marlboro, MD 
    Languages Spoken:
    English

    George Bone is a primary care provider, practicing in Internal Medicine in Upper Marlboro, Maryland. Dr. Bone is rated as a Distinguished provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Homocystinuria, Methylmalonic Acidemia with Homocystinuria, Vitamin D Deficiency, and Inborn Amino Acid Metabolism Disorder.

    Hilary J. Vernon
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Medical Genetics
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Medical Genetics

    Rubenstein Child Health Building

    Baltimore, MD 
    Languages Spoken:
    English, Spanish

    Dr. Hilary Vernon is a Professor of Genetic Medicine and pediatrics at the Johns Hopkins University School of Medicine. She is also an attending physician at Kennedy Krieger Institute. Hilary Vernon has expertise in treating inborn errors of metabolism and mitochondrial disorders. She is the director of the Mitochondrial Care Center at The Johns Hopkins Hospital and the Barth Syndrome Interdisciplinary Clinic at the Kennedy Krieger Institute. Her research interests include understanding intermediary metabolism in Barth syndrome and in disorders of branch chain amino acid metabolism. Dr. Vernon also co-directs the Department of Genetic Medicine Clinical Trials Unit, and is the principal investigator on multiple clinical trials for rare diseases. Dr. Vernon received her medical degree and doctorate from Rutgers University, New Brunswick, New Jersey. She completed residencies in genetics and pediatrics at The Johns Hopkins University, and a fellowship in clinical laboratory biochemical genetics at The Johns Hopkins University. Dr. Vernon was recognized with the 2010 Francis F. Schwentker Award for Excellence in Research at Johns Hopkins University and the 2011 James B. Sidbury Jr. Fellowship in Biochemical Genetics at Johns Hopkins University. Dr. Vernon is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. Her top areas of expertise are Methylmalonic Acidemia, Propionic Acidemia, Infantile Neutropenia, and Progressive External Ophthalmoplegia.

    Ada Hamosh
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Medical Genetics | Pediatrics
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Medical Genetics | Pediatrics

    Rubenstein Child Health Building

    200 North Wolfe Street, Rubenstein BLDG Lower Level, Rubenstein BLDG Lower Level, 
    Baltimore, MD 
    Languages Spoken:
    English

    Dr. Ada Hamosh is the Dr. Frank V. Sutland Professor of Pediatric Genetics in the Departments of Genetic Medicine and Pediatrics. Since 2002, she has served as clinical director of the McKusick-Nathans Institute of Genetic Medicine, now Department of Genetic Medicine and scientific director of the Online Mendelian Inheritance in Man® (OMIM), a catalog of more than 16,800 human genes and genetic disorders created by Dr. Victor A. McKusick. Her research centers the molecular basis of Mendelian disorders, the integration of genetics into clinical practice and the diagnosis and management of inborn errors of metabolism. Dr. Hamosh earned a bachelor’s degree in biology from Wesleyan University, a medical degree from Georgetown University School of Medicine and a master’s of public health from Johns Hopkins University School of Public Health. She later completed a fellowship in medical and biochemical genetics from the Johns Hopkins School of Medicine, before joining the Johns Hopkins faculty in 1992. Dr. Hamosh began her genetics career focusing on cystic fibrosis, serving as coordinator of the International Cystic Fibrosis Genotype-Phenotype Consortium. She served as chair of the Maryland State Advisory Council for Hereditary & Congenital Disorders from 2001-2009, during which time she also served on the executive committee of the Genetic Counseling Training Program, run by Johns Hopkins University and the National Human Genome Research Institute. Dr. Hamosh has authored more than 128 publications on a variety of topics. In addition, she is a member of 16 professional associations and advisory committees including the American Society of Human Genetics, the Steering Committee of the Global Alliance for Genomics and Health, and the executive board of the Human Genome Organization, of which she will be President from 2023-2025. Dr. Hamosh was recognized in Baltimore magazine as one of the region’s top doctors in 2013, and 2016-2020. Dr. Hamosh is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. Her top areas of expertise are Methylmalonic Acidemia, Maple Syrup Urine Disease, Ornithine Transcarbamylase Deficiency, Phenylketonuria (PKU), and Deep Brain Stimulation.

    Learn about our expert tiers
    Riaz A. Janjua
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Experienced in Methylmalonic Acidemia with Homocystinuria

    UPMC Neurological Institute - Stroke Center

    12502 Willowbrook Road, Suite 640, 
    Cumberland, MD 
    Languages Spoken:
    English, Urdu
    Accepting New Patients

    Riaz Janjua, MD, specializes in neurology and is board certified in neurology by the American Board of Psychiatry and Neurology. He practices at UPMC Western MD Specialty Services - Neurology. Dr. Janjua completed his residency at St Vincent Hospital of New York and medical education at King Edward Medical College. Dr. Janjua is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Memory Loss, Dravet Syndrome, Progressive Myoclonic Epilepsy, and Epilepsy.

    Experienced in Methylmalonic Acidemia with Homocystinuria
    Hematology Oncology | Oncology
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Hematology Oncology | Oncology

    Maryland Oncology Hematology PA

    6420 Rockledge Drive, Suite 4200, Suite 4200, 
    Bethesda, MD 
    Languages Spoken:
    English
    Offers Telehealth

    "Dr. Ari D. Fishman is a hematologist affiliated with Sibley Memorial Hospital, Holy Cross Hospital and George Washington University Hospital, where he serves as an assistant professor of medicine for the School of Medicine. He practices out of Maryland Oncology and Hematology, located in Wheaton, Maryland and Silver Spring, Maryland. Dr. Fishman earned his medical degree from Sackler School of Medicine. He completed a residency in internal medicine at the Beth Israel Medical Center, followed by a fellowship in hematology and oncology at the Montefiore Medical Center. Dr. Fishman previously worked at Washington Oncology Hematology Center, located in Washington, D.C. and Chevy Chase, Maryland. Dr. Fishman has been named a Top Doctor in Hematology and Oncology by Washingtonian Magazine and a Top Doctor by Consumers’ Checkbook magazine. Dr. Fishman is a member of the American College of Physicians and the American Society of Clinical Oncology. Dr. Fishman has contributed to numerous publications. Selected Publications Fishman AD, Hoffman A, Volterra F, Frymus M, Gentilluci M. ""Intracaval and intracardiac metastatic nonseminomatous germ cell tumor: a rare cause of hemolytic anemia and thrombocytopenia."" Cancer Invest. 2002;20(7-8):996-1001.". Dr. Fishman is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Monoclonal Gammopathy of Undetermined Significance (MGUS), Schnitzler Syndrome, Myelodysplastic Syndrome (MDS), and Childhood Iron Deficiency Anemia.

    Experienced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine

    Danny And Gail Jones Primary Care

    650 McHenry Rd Ste 3200, 
    Aberdeen, MD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Robert Rapp is a primary care provider, practicing in Internal Medicine in Aberdeen, Maryland. Dr. Rapp is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Lung Metastases, Type 2 Diabetes (T2D), Methylmalonyl Coenzyme A Mutase Deficiency, and Methylmalonic Acidemia. Dr. Rapp is currently accepting new patients.

    Advanced in Methylmalonic Acidemia with Homocystinuria
    Medical Genetics
    Advanced in Methylmalonic Acidemia with Homocystinuria
    Medical Genetics
    9000 Rockville Pike National Institutes Of Health, Building 49 Rm 4a18, 
    Bethesda, MD 
    Languages Spoken:
    English

    Charles Venditti is a Medical Genetics provider in Bethesda, Maryland. Dr. Venditti is rated as an Advanced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Methylmalonic Acidemia, Propionic Acidemia, Homocystinuria, and Niemann-Pick Disease.

    Advanced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine
    Advanced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine

    Office

    10750 Columbia Pike Ste 401, 
    Silver Spring, MD 
    Languages Spoken:
    English
    Offers Telehealth

    Husna Baksh is a primary care provider, practicing in Internal Medicine in Silver Spring, Maryland. Dr. Baksh is rated as an Advanced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. Her top areas of expertise are Hypertensive Heart Disease, Vitamin D Deficiency, Enlarged Liver, and Pediatric Myocarditis.

    Advanced in Methylmalonic Acidemia with Homocystinuria
    Advanced in Methylmalonic Acidemia with Homocystinuria

    Maryland Oncology Hematology P.A.

    7704 Matapeake Business Dr Ste 200, 
    Brandywine, MD 
    Languages Spoken:
    English
    Offers Telehealth

    Deepnarayan Tiwarri is an Oncologist in Brandywine, Maryland. Dr. Tiwarri is rated as an Advanced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Childhood Iron Deficiency Anemia, Iron Deficiency Anemia, Pulmonary Embolism, and Anemia.

    Advanced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine
    Advanced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine
    7801 York Rd, Suite 300, 
    Towson, MD 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Gregory Pokrywka is a primary care provider, practicing in Internal Medicine in Towson, Maryland. Dr. Pokrywka is rated as an Advanced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Abdominal Obesity Metabolic Syndrome, Type B Insulin Resistance Syndrome, Cytochrome C Oxidase Deficiency, and Mitochondrial Complex V Deficiency. Dr. Pokrywka is currently accepting new patients.

    Advanced in Methylmalonic Acidemia with Homocystinuria
    Advanced in Methylmalonic Acidemia with Homocystinuria

    Cancer And Blood Disorders Treatment Center LLC

    3261 Old Washington Rd Ste 1030, 
    Waldorf, MD 
    Languages Spoken:
    English

    Mohammad Meelu is a Hematologist in Waldorf, Maryland. Dr. Meelu is rated as an Advanced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Blood Clots, Vitamin B12 Deficiency, Pleuropulmonary Blastoma, and Subacute Combined Degeneration.

    Advanced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine
    Advanced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine

    Aprilmay Company Inc

    12150 Annapolis Rd Ste 200, 
    Glenn Dale,, MD 
    Languages Spoken:
    English

    Kelson Figaro is a primary care provider, practicing in Internal Medicine in Glenn Dale,, Maryland. Dr. Figaro is rated as an Advanced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Vitamin D Deficiency, Obesity, Homocystinuria, Methylmalonic Acidemia with Homocystinuria, and Gastrostomy.

    Ayesha A. Butt
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine

    Johns Hopkins Community Physicians - Water's Edge

    103 Bata Boulevard, Suite A, Suite A, 
    Belcamp, MD 
    Languages Spoken:
    English, Hindi, Urdu
    Offers Telehealth

    Ayesha Butt, M.D., practices internal medicine at Johns Hopkins Community Physicians Water's Edge. She received her medical degree from Dow Medical College Dow University of Health Sciences, and also completed her residency at Brookdale Hospital Medical Center. Dr. Butt is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. Her top areas of expertise are Peripheral Artery Disease, Type 2 Diabetes (T2D), Maturity Onset Diabetes of the Young, and Familial Hypertension.

    Swati D. Phatak
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine

    Johns Hopkins Community Physicians - Greater Dundalk

    Baltimore, MD 
    Languages Spoken:
    English, Hindi, Marathi
    Offers Telehealth

    Swati D Phatak, M.D., practices internal medicine at Johns Hopkins Community Physicians Greater Dundalk. She received her medical degree from Topiwala National Medical College in Mumbai, India. Dr. Phatak completed residencies at Grant Medical College University of Mumbai and at State University of New York Upstate Medical University in Syracuse, New York. She speaks English, Hindi and Marathi. Dr. Phatak is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. Her top areas of expertise are Vitamin D Deficiency, Hypertension, Glucocorticoid-Remediable Aldosteronism, and Familial Hypertension.

    Amar Duggirala
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Family Medicine
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Family Medicine

    Poolesville Family Practice LLC

    19710 Fisher Ave Ste J, 
    Poolesville, MD 
    Languages Spoken:
    English
    Offers Telehealth

    Amar Duggirala is a primary care provider, practicing in Family Medicine in Poolesville, Maryland. Dr. Duggirala is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Sitosterolemia, Bronchitis, High Cholesterol, and Pheochromocytoma.

    Experienced in Methylmalonic Acidemia with Homocystinuria
    Experienced in Methylmalonic Acidemia with Homocystinuria

    Maryland Oncology Hematology P.A.

    8926 Woodyard Rd Ste 101, 
    Clinton, MD 
    Languages Spoken:
    English
    Offers Telehealth

    Jose Mendoza is an Oncologist in Clinton, Maryland. Dr. Mendoza is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Childhood Iron Deficiency Anemia, Iron Deficiency Anemia, Anemia, and Familial Colorectal Cancer.

    Experienced in Methylmalonic Acidemia with Homocystinuria
    Experienced in Methylmalonic Acidemia with Homocystinuria

    Chesapeake Urology Associates LLC

    129 Lubrano Dr Ste 201, 
    Annapolis, MD 
    Languages Spoken:
    English

    Russell De Luca is a Hematologist in Annapolis, Maryland. Dr. De Luca is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Pleuropulmonary Blastoma, Paget Disease of the Breast, Breast Cancer, and Lung Cancer.

    Experienced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Internal Medicine

    Office

    10751 Falls Rd Ste 406, 
    Lutherville Timonium, MD 
    Languages Spoken:
    English

    William Queale is a primary care provider, practicing in Internal Medicine in Lutherville Timonium, Maryland. Dr. Queale is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Methylmalonyl Coenzyme A Mutase Deficiency, Methylmalonic Acidemia, Methylmalonic Acidemia with Homocystinuria, and Homocystinuria.

    Experienced in Methylmalonic Acidemia with Homocystinuria
    Experienced in Methylmalonic Acidemia with Homocystinuria

    Maryland Oncology Hematology P.A.

    7704 Matapeake Business Dr Ste 200, 
    Brandywine, MD 
    Languages Spoken:
    English
    Offers Telehealth

    Rita Gupta is an Oncologist in Brandywine, Maryland. Dr. Gupta is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. Her top areas of expertise are Iron Deficiency Anemia, Childhood Iron Deficiency Anemia, Paget Disease of the Breast, and Breast Cancer.

    Experienced in Methylmalonic Acidemia with Homocystinuria
    Family Medicine
    Experienced in Methylmalonic Acidemia with Homocystinuria
    Family Medicine

    Families First Wellness Center

    10005 Old Columbia Rd Ste P170, 
    Columbia, MD 
    Languages Spoken:
    English

    Mark Sivieri is a primary care provider, practicing in Family Medicine in Columbia, Maryland. Dr. Sivieri is rated as an Experienced provider by MediFind in the treatment of Methylmalonic Acidemia with Homocystinuria. His top areas of expertise are Juvenile Dermatomyositis, IgG4-Related Disease, Light Chain Deposition Disease (LCDD), and MAGIC Syndrome.

    Showing 1-20 of 40

    Last Updated: 04/28/2026

    What is the definition of Methylmalonic Acidemia with Homocystinuria?

    Methylmalonic acidemia with homocystinuria is a disorder in which the body is unable to correctly process certain protein building blocks (amino acids), fat building blocks (fatty acids), and  cholesterol. The body is also unable to convert the amino acid homocysteine to another amino acid, methionine. Individuals with this disorder have a combination of features from two separate conditions, methylmalonic acidemia and homocystinuria. There are several forms of this combined condition, and the different forms have different genetic causes and signs and symptoms. The most common and best understood form, called cblC type (or cobalamin C disease), occurs in about 80 percent of affected individuals.

    When should I see a Methylmalonic Acidemia with Homocystinuria doctor in Maryland, US?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing a Methylmalonic Acidemia with Homocystinuria doctor in Maryland, US?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How does MediFind rank Methylmalonic Acidemia with Homocystinuria doctors in Maryland, US?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by Methylmalonic Acidemia with Homocystinuria doctors in Maryland, US?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with a Methylmalonic Acidemia with Homocystinuria doctor in Maryland, US?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Methylmalonic Acidemia with Homocystinuria doctor search results page. 

    Why is it important to get a second opinion from a different Methylmalonic Acidemia with Homocystinuria doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with a Methylmalonic Acidemia with Homocystinuria doctor in Maryland, US?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my Methylmalonic Acidemia with Homocystinuria doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my Methylmalonic Acidemia with Homocystinuria doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female Methylmalonic Acidemia with Homocystinuria doctors in Maryland, US?

    Look for the filter feature on the left side of the Methylmalonic Acidemia with Homocystinuria doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find a Methylmalonic Acidemia with Homocystinuria doctor that offers video calls?

    Look for the filter feature on the left-side of the Methylmalonic Acidemia with Homocystinuria doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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