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    Last Updated: 10/30/2025

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    MediFind found 41 doctor with experience in Vitamin B12 Deficiency near Upland, CA. Of these, 35 are Experienced, 5 are Advanced and 1 are Distinguished.

    Location
    LocationClose
    41 providers found
      Distinguished in Vitamin B12 Deficiency
      Cardiology | Nuclear Medicine | Radiology
      Distinguished in Vitamin B12 Deficiency
      Cardiology | Nuclear Medicine | Radiology
      999 San Bernardino Rd, 
      Upland, CA 
       (0.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Siva Arunasalam is a Cardiologist and a Nuclear Medicine provider in Upland, California. Dr. Arunasalam is rated as a Distinguished provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Heart Failure, Angina, Heart Attack, Pacemaker Implantation, and Colonoscopy.

      Experienced in Vitamin B12 Deficiency
      Oncology | Hematology Oncology
      Experienced in Vitamin B12 Deficiency
      Oncology | Hematology Oncology
      5451 Walnut Ave, 
      Chino, CA 
       (5.4 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Behnam Ebrahimi is an Oncologist and a Hematologist Oncology provider in Chino, California. Dr. Ebrahimi is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Inflammatory Breast Cancer, Small Cell Lung Cancer (SCLC), Angiosarcoma, and Paget Disease of the Breast.

      What does Elite, Distinguished, Advanced, Experienced mean?
      Advanced in Vitamin B12 Deficiency
      Endocrinology
      Advanced in Vitamin B12 Deficiency
      Endocrinology

      Chaparral Medical Group Inc

      9170 Haven Ave, Suite 120, 
      Rancho Cucamonga, CA 
       (4.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Ewa Konca is an Endocrinologist in Rancho Cucamonga, California. Dr. Konca is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Type 2 Diabetes (T2D), Obesity in Children, Obesity, and Hypothyroidism.

      Learn about our expert tiers
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology
      Experienced in Vitamin B12 Deficiency
      Hematology Oncology | Hematology | Oncology

      City Of Hope Medical Foundation

      1100 San Bernardino Rd, Suite 1100, 
      Upland, CA 
       (0.7 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Chau Tran is a Hematologist Oncology specialist and a Hematologist in Upland, California. Dr. Tran is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Paget Disease of the Breast, Breast Cancer, Angiosarcoma, and Inflammatory Breast Cancer.

      Experienced in Vitamin B12 Deficiency
      Family Medicine | Hospital Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine | Hospital Medicine
      99 N San Antonio Ave, Suite 210, 
      Upland, CA 
       (0.8 miles away)
      Experience:
      10+ years
      Languages Spoken:
      English
      Offers Telehealth

      Rishi Majithia is a Hospital Medicine provider in Upland, California. Dr. Majithia has been practicing medicine for over 10 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top area of expertise is Vitamin B12 Deficiency.

      Experienced in Vitamin B12 Deficiency
      Cardiology
      Experienced in Vitamin B12 Deficiency
      Cardiology

      Prohealth Partners, A Medical Group

      685 N 13th Ave, 
      Upland, CA 
       (0.9 miles away)
      Languages Spoken:
      English

      Byung Ahn is a Cardiologist in Upland, California. Dr. Ahn is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Hypertension, Metabolic Syndrome, Pediatric Myocarditis, and Pacemaker Implantation.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine

      Mukesh Amin MD And Tejinder Singh MD Inc

      914 W Foothill Blvd, Suite B, 
      Upland, CA 
       (1.1 miles away)
      Languages Spoken:
      English

      Tejinder Singh is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Singh is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Type 2 Diabetes (T2D), Osteomyelitis in Children, Hypertension, Gastrostomy, and Thrombectomy.

      Experienced in Vitamin B12 Deficiency
      Family Medicine | Holistic Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine | Holistic Medicine
      984 W Foothill Blvd, Suite E, 
      Upland, CA 
       (1.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Michael Benavidez is a Holistic Medicine provider in Upland, California. Mr. Benavidez is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin D Deficiency, Generalized Pustular Psoriasis (GPP), Vitamin B12 Deficiency, and Menopause.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      1113 Alta Ave, Suite 106, 
      Upland, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Michael Chai is a primary care provider, practicing in Internal Medicine in Upland, California. Dr. Chai is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Necrotizing Vasculitis, Small Cell Lung Cancer (SCLC), Lung Cancer, Myringotomy, and Gastrostomy.

      Experienced in Vitamin B12 Deficiency
      Family Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine
      1113 Alta Ave, Suite 102, 
      Upland, CA 
       (1.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Richard Armour is a primary care provider, practicing in Family Medicine in Upland, California. Dr. Armour is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Inborn Amino Acid Metabolism Disorder, Osteomyelitis in Children, Bronchiolitis Obliterans, and Industrial Bronchitis.

      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine

      Chaparral Medical Group Inc

      138 Harvard Ave, 
      Claremont, CA 
       (3.9 miles away)
      Languages Spoken:
      English

      Ashok Sharma is a primary care provider, practicing in Geriatrics and Internal Medicine in Claremont, California. Dr. Sharma is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Atrial Fibrillation, Obesity, Attenuated Familial Adenomatous Polyposis, and Cronkhite-Canada Disease.

      Experienced in Vitamin B12 Deficiency
      Family Medicine | Emergency Medicine
      Experienced in Vitamin B12 Deficiency
      Family Medicine | Emergency Medicine
      7974 Haven Ave, Suite 250, 
      Rancho Cucamonga, CA 
       (4.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Mark Shiu is an Emergency Medicine provider in Rancho Cucamonga, California. Dr. Shiu is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin D Deficiency, Vitamin B12 Deficiency, Muscle Spasms, and Menopause.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine

      Chaparral Medical Group Inc

      9190 Haven Ave, 
      Rancho Cucamonga, CA 
       (4.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Nyein Tint is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Tint is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Obesity, Obesity in Children, High Cholesterol, and Vitamin D Deficiency.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine

      Our Family Medical Group Inc

      9190 Haven Ave, Suite 102, 
      Rancho Cucamonga, CA 
       (4.2 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Hetalben Makwana is a primary care provider, practicing in Internal Medicine in Rancho Cucamonga, California. Dr. Makwana is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Osteomyelitis in Children, Breast Cancer, Obesity, and High Cholesterol.

      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine
      Experienced in Vitamin B12 Deficiency
      Geriatrics | Internal Medicine

      Chaparral Medical Group Inc

      8330 Red Oak St, Suite 201, 
      Rancho Cucamonga, CA 
       (4.5 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Harvey Cohen is a primary care provider, practicing in Geriatrics and Internal Medicine in Rancho Cucamonga, California. Dr. Cohen is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Glucocorticoid-Remediable Aldosteronism, Hypertension, Familial Hypertension, and Obesity.

      Experienced in Vitamin B12 Deficiency
      Hospital Medicine | Pain Medicine
      Experienced in Vitamin B12 Deficiency
      Hospital Medicine | Pain Medicine
      995 W Foothill Blvd, 
      Claremont, CA 
       (5.0 miles away)
      Experience:
      17+ years
      Languages Spoken:
      English
      Offers Telehealth

      Mohitkumar Ardeshana is a Hospital Medicine specialist and a Pain Medicine provider in Claremont, California. Dr. Ardeshana has been practicing medicine for over 17 years and is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Opisthotonos, Muscle Spasms, Neuralgia, and Sciatica.

      Experienced in Vitamin B12 Deficiency
      Palliative Medicine
      Experienced in Vitamin B12 Deficiency
      Palliative Medicine
      995 W. Foothill Blvd., 
      Claremont, CA 
       (5.0 miles away)
      Languages Spoken:
      English

      Bijan Badihian is a Palliative Medicine provider in Claremont, California. Dr. Badihian is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Menopause and Vitamin B12 Deficiency.

      Advanced in Vitamin B12 Deficiency
      Family Medicine | General Practice
      Advanced in Vitamin B12 Deficiency
      Family Medicine | General Practice
      1151 E Holt Ave, Suite Q, 
      Pomona, CA 
       (5.1 miles away)
      Languages Spoken:
      English

      Tuan Le is a primary care provider, practicing in Family Medicine and General Practice in Pomona, California. Dr. Le is rated as an Advanced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Vitamin B12 Deficiency, Maturity Onset Diabetes of the Young, Type 2 Diabetes (T2D), and Glucocorticoid-Remediable Aldosteronism.

      Experienced in Vitamin B12 Deficiency
      Internal Medicine | Hospital Medicine
      Experienced in Vitamin B12 Deficiency
      Internal Medicine | Hospital Medicine

      Ontario Medical Center

      2295 S Vineyard Ave, 
      Ontario, CA 
       (5.0 miles away)
      Languages Spoken:
      English

      Yang Li is an Internal Medicine specialist and a Hospital Medicine provider in Ontario, California. Dr. Li is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. His top areas of expertise are Gallbladder Disease, Pulmonary Fibrosis, Neurofibromatosis, Osteotomy, and Nerve Decompression.

      Experienced in Vitamin B12 Deficiency
      Experienced in Vitamin B12 Deficiency

      Chaparral Medical Group Inc

      790 E Bonita Ave, Fl 2, 
      Pomona, CA 
       (5.1 miles away)
      Languages Spoken:
      English
      Offers Telehealth

      Nazia Siddiqi is a Nephrologist in Pomona, California. Dr. Siddiqi is rated as an Experienced provider by MediFind in the treatment of Vitamin B12 Deficiency. Her top areas of expertise are Diabetic Nephropathy, Chronic Kidney Disease, Vitamin D Deficiency, and Seasonal Affective Disorder (SAD).

      Showing 1-20 of 41

      Last Updated: 10/30/2025

      When should I see a Vitamin B12 Deficiency doctor near Upland, 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 Vitamin B12 Deficiency doctor near Upland, 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 Vitamin B12 Deficiency doctors near Upland, 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 Vitamin B12 Deficiency doctors near Upland, 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 Vitamin B12 Deficiency doctor near Upland, 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 Vitamin B12 Deficiency doctor search results page. 

      Why is it important to get a second opinion from a different Vitamin B12 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 Vitamin B12 Deficiency doctor near Upland, 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 Vitamin B12 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 Vitamin B12 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 Vitamin B12 Deficiency doctors near Upland, CA?

      Look for the filter feature on the left side of the Vitamin B12 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 Vitamin B12 Deficiency doctor that offers video calls?

      Look for the filter feature on the left-side of the Vitamin B12 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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