Gastroenterology Doctors in Fountain Valley, CA Accepting Medicare

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9 Gastroenterology doctors found. Showing 1 - 9
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Dr. Davinder Singh, M.D.
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 11100 Warner Ave, Suite 268, Fountain Valley, CA 92708
Phone: 714-540-9911    Fax: 714-549-9720
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Mr. Fernando H Austin, MD
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 9940 Talbert Ave, Fountain Valley, CA 92708
Phone: 714-964-6229    Fax: 714-378-6233
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Dr. Richard Alan Zelner,
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 18035 Brookhurst St., Ste. 2100, Fountain Valley, CA 92708
Phone: 657-241-9090    Fax: 714-665-4603
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David Minh Truong, M.D.
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 10900 Warner Ave, Ste 201, Fountain Valley, CA 92708
Phone: 714-274-9969    Fax: 714-274-9973
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Dr. Nancy Jeong-sun Han, M.D.
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 18035 Brookhurst St Ste 2100, Fountain Valley, CA 92708
Phone: 657-241-9090    Fax: 714-665-4603
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Duke H Nguyen, MD
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 9900 Talbert Ave, Ste 100, Fountain Valley, CA 92708
Phone: 714-378-7390    Fax: 714-378-7290
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Dr. Babak Firoozi, M.D.
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 18035 Brookhurst St., Suite 2100, Fountain Valley, CA 92708
Phone: 657-241-9090    Fax: 714-665-4603
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Jose Luis Aranez, M.D.
Internal Medicine - Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 18035 Brookhurst St., Ste. 2100, Fountain Valley, CA 92708
Phone: 657-241-9090    Fax: 714-665-4603
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Dr. Ronald J Policastro, M.D.
Internal Medicine - Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 18111 Brookhurst St, Ste 5200, Fountain Valley, CA 92708
Phone: 714-962-7705    Fax: 714-962-7701

Gastroenterology: An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal 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.