Internal Medicine Doctors in Tustin, CA Accepting Medicare

53 Internal Medicine doctors found. Showing 1 - 20
female doctor icon
Dr. Huong T Duong, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 17400 Irvine Blvd, Suite F, Tustin, CA 92780
Phone: 714-838-5610    
female doctor icon
Dr. Susan L Ban, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 17400 Irvine Blvd, Suite F, Tustin, CA 92780
Phone: 714-838-5610    
male doctor icon
Jeremy Lam, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2492 Walnut Ave Ste 100, Tustin, CA 92780
Phone: 714-709-8000    Fax: 714-709-8080
male doctor icon
Dr. Thomas C Hwang, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 17400 Irvine Blvd, Suite F, Tustin, CA 92780
Phone: 714-838-5610    
male doctor icon
Dr. James A Grimes, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 17400 Irvine Blvd, Suite F, Tustin, CA 92780
Phone: 714-838-5610    
male doctor icon
Dr. Pin-hung Hsieh, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 13522 Newport Ave Ste 102, Tustin, CA 92780
Phone: 714-573-8200    Fax: 714-573-9401
female doctor icon
Madonna A Nicolai, CFNP
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 14351 Myford Rd, Suite B, Tustin, CA 92780
Phone: 714-550-9990    Fax: 714-550-1226
female doctor icon
Stela Georgieva Kostova-abadjieva, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 661 W 1st St Ste G, Tustin, CA 92780
Phone: 714-665-9890    Fax: 714-665-9891
male doctor icon
Imran Sharief, MD
Internal Medicine - Sleep Medicine
Medicare: May Accept Medicare Assignments
Practice Location: 14642 Newport Ave Ste 250, Tustin, CA 92780
Phone: 248-819-2634    Fax: 714-486-2272
male doctor icon
Dr. Patrick Elvin Clarke, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 3002 Dow Ave, Suite 204, Tustin, CA 92780
Phone: 888-277-0080    
male doctor icon
Dr. Otto Liao, M.D.
Internal Medicine - Allergy & Immunology
Medicare: May Accept Medicare Assignments
Practice Location: 1076 E 1st St Ste B, Tustin, CA 92780
Phone: 714-838-2617    
male doctor icon
Dr. Robert Frank Bader, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1 Hope Dr, Tustin, CA 92782
Phone: 714-247-0300    Fax: 714-259-1598
male doctor icon
Dr. John A Sarkaria, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 14642 Newport Ave, Suite 450, Tustin, CA 92780
Phone: 714-669-4449    Fax: 714-669-4003
male doctor icon
Dr. Philip J. Fagan Jr., M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 14642 Newport Ave Ste 101, Tustin, CA 92780
Phone: 714-581-6470    Fax: 714-581-6492
male doctor icon
Dr. David A Mcdonough, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 12721 Newport Ave Ste 3, Tustin, CA 92780
Phone: 310-288-5933    Fax: 866-683-4556
male doctor icon
Dr. Tariq A Khan, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 14642 Newport Ave, Suite 408, Tustin, CA 92780
Phone: 657-218-9859    Fax: 657-218-4023
male doctor icon
Mohammad Adnan Elbatta,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 17400 Irvine Blvd Ste F, Tustin, CA 92780
Phone: 714-937-9400    Fax: 714-937-9404
male doctor icon
Dr. Don S Oh, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 2488 Aquasanta, Tustin, CA 92782
Phone: 714-222-3258    Fax: 713-544-3261
male doctor icon
Moothedath Menon, M.D.
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 661 W 1st St Ste G, Tustin, CA 92780
Phone: 714-665-9890    Fax: 714-665-9891
male doctor icon
Dr. Kien Phuc Tran, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 15491 Pasadena Ave Apt 87, Tustin, CA 92780
Phone: 832-287-6252    
  • 1(current)
  • 2
  • 3

Internal Medicine: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.


Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.