Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Diana Kim Phung Nguyen Pham, MD

Individual provider Family Medicine Physician · NPI 1013064005

Dr. Diana Kim Phung Nguyen Pham, MD is registered under Family Practice in Fountain Valley, California. Qualified in 2000, 26 years ago. Practices with Omid Vesal, MD, Medical Corporation, a 2-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
26
Licensed in
CA
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

18642 Bushard St
Fountain Valley, CA 92708-7209 Not confirmed with CMS for 16 years — call before visiting
Phone: (714) 883-0771
Fax: (714) 962-2321
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence A83986 (CA)

Record details

NPI number1013064005
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 4, 2007
Last updated in NPPESNovember 4, 2009

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Group practice Omid Vesal, Md, Medical Corporation — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients18
Services billed 109 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Omid Vesal, MD, Medical Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Fountain Valley