Dr Claire Thuc Duyen Diep, MD - Medicare Internal Medicine in Union City, CA

Dr Claire Thuc Duyen Diep, MD is a medicare enrolled "Internal Medicine" physician in Union City, California. She went to Eastern Virginia Medical School and graduated in 1994 and has 31 years of diverse experience with area of expertise as Internal Medicine. Her current practice location is 33509 Western Avenue, Union City, California. You can reach out to her office (for appointments etc.) via phone at (510) 441-8081.

Dr Claire Thuc Duyen Diep is licensed to practice in California (license number A55900) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1366508707.

Contact Information

Dr Claire Thuc Duyen Diep, MD
33509 Western Avenue,
Union City, CA 94587
(510) 441-8081
(510) 441-8080

Map and Direction




Physician's Profile

Full NameDr Claire Thuc Duyen Diep
GenderFemale
SpecialityInternal Medicine
Experience31 Years
Location33509 Western Avenue, Union City, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Claire Thuc Duyen Diep attended and graduated from Eastern Virginia Medical School in 1994
  NPI Data:
  • NPI Number: 1366508707
  • Provider Enumeration Date: 12/29/2006
  • Last Update Date: 07/17/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 2769424902
  • Enrollment ID: I20050531000611

Medical Identifiers

Medical identifiers for Dr Claire Thuc Duyen Diep such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1366508707NPI-NPPES
00A559000MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A55900 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
St Rose HospitalHayward, CAHospital
Washington HospitalFremont, CAHospital

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Claire Thuc Duyen Diep allows following entities to bill medicare on her behalf.
Entity NameClaire T Diep Md Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609958636
PECOS PAC ID: 6406898642
Enrollment ID: O20050620001065

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Claire Thuc Duyen Diep is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Claire Thuc Duyen Diep, MD
33509 Western Avenue,
Union City, CA 94587

Ph: (510) 441-8081
Dr Claire Thuc Duyen Diep, MD
33509 Western Avenue,
Union City, CA 94587

Ph: (510) 441-8081

Reviews and Comments


Internal Medicine Doctors in Union City, CA

Jayasudha S Palavalli, M.D.
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Jaishree Acharya, M.D.
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Pamela Wong Nitsos, M.D.
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Dr. Lauren Yokomizo,
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Practice Location: 3553 Whipple Road, Building B, Station 6, Union City, CA 94587
Phone: 212-263-5506    
Alan Curtis Jung, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 3553 Whipple Rd, Union City, CA 94587
Phone: 510-454-1000    

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.