The 20 Best Protein Deficiency Doctors Near Me in Fullerton, CA

Find the Top Protein Deficiency Experts and Specialists

The 20 Best Protein Deficiency Doctors near Fullerton, CA

Last Updated: 02/22/2026

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MediFind found 237 doctor with experience in Protein Deficiency near Fullerton, CA. Of these, 222 are Experienced, 14 are Advanced and 1 are Distinguished.

Location
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237 providers found
    Experienced in Protein Deficiency
    Gastroenterology
    Experienced in Protein Deficiency
    Gastroenterology
    1837 Sunny Crest Drive, 
    Fullerton, CA 
     (2.2 miles away)
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Patrick Koo is a Gastroenterologist in Fullerton, California. Dr. Koo is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Hemorrhoids, Familial Adenomatous Polyposis, Angiodysplasia of the Colon, Endoscopy, and Gastrectomy. Dr. Koo is currently accepting new patients.

    Brian P. Riff
    Experienced in Protein Deficiency
    Gastroenterology | Internal Medicine
    Experienced in Protein Deficiency
    Gastroenterology | Internal Medicine

    Associated Gastroenterology

    1211 W La Palma Ave, 
    Anaheim, CA 
     (1.7 miles away)
    Experience:
    17+ years
    Languages Spoken:
    English
    Offers Telehealth

    Brian Riff is an Internal Medicine specialist and a Gastroenterologist in Anaheim, California. Dr. Riff has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Gastroesophageal Reflux Disease (GERD), Chronic Erosive Gastritis, Campylobacter Infection, Gastrostomy, and Gastrectomy.

    Advanced in Protein Deficiency
    Nurse Practitioner
    Advanced in Protein Deficiency
    Nurse Practitioner

    Healthcare Partners Affiliates Medical Group

    1236 N Magnolia Ave, 
    Anaheim, CA 
     (3.3 miles away)
    Languages Spoken:
    English

    Jade Bajarias is a Nurse Practitioner in Anaheim, California. Ms. Bajarias is rated as an Advanced provider by MediFind in the treatment of Protein Deficiency. Her top area of expertise is Protein Deficiency.

    Learn about our expert tiers
    Advanced in Protein Deficiency
    Pediatric Gastroenterology
    Advanced in Protein Deficiency
    Pediatric Gastroenterology
    1201 West La Veta Avenue, 
    Orange, CA 
     (7.0 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Bassam Younes is a Pediatric Gastroenterologist in Orange, California. Dr. Younes is rated as an Advanced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Celiac Disease, Encopresis, Koolen De Vries Syndrome, and Cri-Du-Chat Syndrome. Dr. Younes is currently accepting new patients.

    Raymond Y. Wang
    Experienced in Protein Deficiency
    Medical Genetics
    Experienced in Protein Deficiency
    Medical Genetics
    1201 West La Veta Avenue, 
    Orange, CA 
     (7.0 miles away)
    Languages Spoken:
    English

    Raymond Wang is a Medical Genetics provider in Orange, California. Dr. Wang is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Mucopolysaccharidoses (MPS), Mucopolysaccharidosis Type 7 (MPS VII, Sly Syndrome), Mucopolysaccharidosis Type 1 (MPS I, Hurler Syndrome), Pompe Disease, and Adenoidectomy.

    Nafiz M. Kiciman
    Experienced in Protein Deficiency
    Pediatric Cardiology
    Experienced in Protein Deficiency
    Pediatric Cardiology
    505 South Main Street, Suite 600, 
    Orange, CA 
     (7.1 miles away)
    Languages Spoken:
    English
    Accepting New Patients

    Nafiz Kiciman is a Pediatric Cardiologist in Orange, California. Dr. Kiciman is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Patent Ductus Arteriosus, Ventricular Septal Defects, Perrault Syndrome, and Turner Syndrome. Dr. Kiciman is currently accepting new patients.

    Advanced in Protein Deficiency
    Internal Medicine
    Advanced in Protein Deficiency
    Internal Medicine
    12665 Garden Grove Boulevard, Suite 503, 
    Garden Grove, CA 
     (7.4 miles away)
    Languages Spoken:
    English

    Chaewon Song is a primary care provider, practicing in Internal Medicine in Garden Grove, California. Dr. Song is rated as an Advanced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Osteomyelitis in Children, Hypertension, Familial Hypertension, Gastrostomy, and Colonoscopy.

    Distinguished in Protein Deficiency
    Neonatology
    Distinguished in Protein Deficiency
    Neonatology

    Orange County Global Medical Center Inc.

    1001 N Tustin Ave, 
    Santa Ana, CA 
     (9.6 miles away)
    Languages Spoken:
    English

    Virender Rehan is a Neonatologist in Santa Ana, California. Dr. Rehan is rated as a Distinguished provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Protein Deficiency, Bronchopulmonary Dysplasia, Cerebral Hypoxia, and Intrauterine Growth Restriction.

    Experienced in Protein Deficiency
    Experienced in Protein Deficiency

    Optum - Commonwealth

    1501 W Commonwealth Ave, 
    Fullerton, CA 
     (1.3 miles away)
    Experience:
    14+ years
    Languages Spoken:
    English
    Offers Telehealth

    Andrea Del Cisne Benavides Ordonez is a primary care provider, practicing in Internal Medicine in Fullerton, California. Dr. Del Cisne Benavides Ordonez has been practicing medicine for over 14 years and is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. Her top areas of expertise are Type 2 Diabetes (T2D), Osteomyelitis in Children, Diabetic Neuropathy, and Familial Hypertension.

    Experienced in Protein Deficiency
    Internal Medicine
    Experienced in Protein Deficiency
    Internal Medicine

    Chest And Critical Care Consultants

    1211 W La Palma Ave, 
    Anaheim, CA 
     (1.7 miles away)
    Experience:
    18+ years
    Languages Spoken:
    English

    Catherine Sherman is a primary care provider, practicing in Internal Medicine in Anaheim, California. Dr. Sherman has been practicing medicine for over 18 years and is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. Her top areas of expertise are Sepsis, Acute Kidney Failure, Peptic Ulcer, Stroke, and Gastrostomy.

    Experienced in Protein Deficiency
    Internal Medicine
    Experienced in Protein Deficiency
    Internal Medicine

    Chest And Critical Care Consultants

    1211 W La Palma Ave, 
    Anaheim, CA 
     (1.7 miles away)
    Experience:
    35+ years
    Languages Spoken:
    English

    Niem Nguyen is a primary care provider, practicing in Internal Medicine in Anaheim, California. Dr. Nguyen has been practicing medicine for over 35 years and is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Sepsis, Peptic Ulcer, Necrosis, Endoscopy, and Gastrostomy.

    Experienced in Protein Deficiency
    Family Medicine
    Experienced in Protein Deficiency
    Family Medicine

    Providence St. Jude Medical Center

    101 E Valencia Mesa Dr, 
    Fullerton, CA 
     (1.7 miles away)
    Languages Spoken:
    English

    Lam Dang is a primary care provider, practicing in Family Medicine in Fullerton, California. Dr. Dang is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Low Blood Pressure, Malnutrition, Acute Pain, Autoerythrocyte Sensitivity, and Cardiac Ablation.

    Experienced in Protein Deficiency
    Physician Assistant
    Experienced in Protein Deficiency
    Physician Assistant

    Orca Rehab Inc

    101 E Valencia Mesa Dr, 
    Fullerton, CA 
     (1.7 miles away)
    Languages Spoken:
    English

    Lisa Paradiso is a Physician Assistant in Fullerton, California. Ms. Paradiso is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. Her top area of expertise is Protein Deficiency.

    Experienced in Protein Deficiency
    Geriatrics
    Experienced in Protein Deficiency
    Geriatrics
    101 East Valencia Mesa Drive, Suite 226, 
    Fullerton, CA 
     (1.7 miles away)
    Languages Spoken:
    English

    Daniel Park is a primary care provider, practicing in Geriatrics in Fullerton, California. Dr. Park is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Pneumonia, Chorea-Acanthocytosis, Atypical Pneumonia, Hospital-Acquired Pneumonia, and Gastrostomy.

    Experienced in Protein Deficiency
    Gastroenterology
    Experienced in Protein Deficiency
    Gastroenterology

    Associated Gastroenterology Medical Group

    1211 W La Palma Ave Ste 306, 
    Anaheim, CA 
     (1.7 miles away)
    Languages Spoken:
    English
    Offers Telehealth

    Kavita Singh is a Gastroenterologist in Anaheim, California. Dr. Singh is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. Her top areas of expertise are Familial Adenomatous Polyposis, Gardner Syndrome, Turcot Syndrome, Endoscopy, and Colonoscopy.

    Experienced in Protein Deficiency
    Gastroenterology
    Experienced in Protein Deficiency
    Gastroenterology

    Dr P G Rajan MD Inc

    1711 W Romneya Dr, 
    Anaheim, CA 
     (1.7 miles away)
    Languages Spoken:
    English

    Ashokkumar Amin is a Gastroenterologist in Anaheim, California. Dr. Amin is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Gastrointestinal Bleeding, Swallowing Difficulty, Painful Swallowing, Gastrostomy, and Gastrectomy.

    Experienced in Protein Deficiency
    Family Medicine | Geriatrics
    Experienced in Protein Deficiency
    Family Medicine | Geriatrics

    Anaheim Cardiology Medical Group, Inc.

    1735 W Romneya Dr, 
    Anaheim, CA 
     (1.7 miles away)
    Experience:
    22+ years
    Languages Spoken:
    English

    Reza Dolouei is a primary care provider, practicing in Family Medicine and Geriatrics in Anaheim, California. Dr. Dolouei has been practicing medicine for over 22 years and is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are Sepsis, Dysgraphia, Glucocorticoid-Remediable Aldosteronism, Gastrostomy, and Colonoscopy.

    Experienced in Protein Deficiency
    Gastroenterology
    Experienced in Protein Deficiency
    Gastroenterology

    Digestive And Liver Disease Specialists

    1771 W Romneya Dr, 
    Anaheim, CA 
     (1.8 miles away)
    Experience:
    27+ years
    Languages Spoken:
    English
    Offers Telehealth

    Amit Raina is a Gastroenterologist in Anaheim, California. Dr. Raina has been practicing medicine for over 27 years and is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. Her top areas of expertise are Bile Duct Obstruction, Childhood Pancreatitis, Cholestasis, Endoscopy, and Gastrostomy.

    Experienced in Protein Deficiency
    Nurse Practitioner
    Experienced in Protein Deficiency
    Nurse Practitioner

    Office

    3150 W Lincoln Ave Ste 100, 
    Anaheim, CA 
     (2.4 miles away)
    Languages Spoken:
    English

    Melissa Hagadorn is a Nurse Practitioner in Anaheim, California. Ms. Hagadorn is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. Her top areas of expertise are Protein Deficiency, Seasonal Affective Disorder (SAD), Atrioventricular Nodal Reentrant Tachycardia (AVNRT), and Paroxysmal Supraventricular Tachycardia (PSVT).

    Experienced in Protein Deficiency
    Internal Medicine
    Experienced in Protein Deficiency
    Internal Medicine

    Office

    2040 S Santa Cruz St Ste 240, 
    Anaheim, CA 
     (2.9 miles away)
    Languages Spoken:
    English

    Hassan Chahine is a primary care provider, practicing in Internal Medicine in Anaheim, California. Dr. Chahine is rated as an Experienced provider by MediFind in the treatment of Protein Deficiency. His top areas of expertise are End-Stage Renal Disease (ESRD), Sepsis, Pneumonia, Gastrostomy, and Colonoscopy.

    Showing 1-20 of 237

    Last Updated: 02/22/2026

    When should I see a Protein Deficiency doctor near Fullerton, CA?

    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 Protein Deficiency doctor near Fullerton, CA?

    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 Protein Deficiency doctors near Fullerton, CA?

    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 Protein Deficiency doctors near Fullerton, CA?

    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 Protein Deficiency doctor near Fullerton, CA?

    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 Protein Deficiency doctor search results page. 

    Why is it important to get a second opinion from a different Protein Deficiency 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 Protein Deficiency doctor near Fullerton, CA?

    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 Protein Deficiency 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 Protein Deficiency 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 Protein Deficiency doctors near Fullerton, CA?

    Look for the filter feature on the left side of the Protein Deficiency 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 Protein Deficiency doctor that offers video calls?

    Look for the filter feature on the left-side of the Protein Deficiency 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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