NPPES file of Aug 9, 2026

Diana Aung, M.D.

Obstetrics & Gynecology Physician · San Jose, CA

Diana Aung, M.D. is an obstetrics & gynecology physician with a practice address in San Jose, California, and NPI 1497814834, issued on Dec 8, 2006. Check the license (California A78991, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497814834
Name
Diana Aung
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
A78991 CA
Self-reported in NPPES; status is on the state search
Practice location
2400 Samaritan Drive, San Jose, CA 95124
Phone
(408) 523-3870
Enumerated
Dec 8, 2006
Record last updated
Mar 31, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20081110000754); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2400 Samaritan Drive

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Denise Massey, MDInternal Medicine Physician1487719118

Verify Diana Aung in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A78991
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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59% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

67 Medicare Part D claims for 23 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Diana Aung67
  2. Specialty average165

Most prescribed

  1. Estradiol27 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $18.03

1 payment: food and beverage; the largest payer was Hologic Sales and Service, LLC. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diana Aung$18.03
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationSan Jose, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Diana Aung among 5,088 obstetrics & gynecology physician records in California

Diana Aung, M.D. is one of 5,088 obstetrics & gynecology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 52% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated1998 · median 2004 among the 2,700 with a school on file
  • Record last updated2016 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in California

There are 5,088 obstetrics & gynecology physician records in California.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Marjorie Bhogal, M.D.San Jose, CA 951241417275116
  2. Barry Brummer, M.D.San Jose, CA 951241871532275
  3. Violetta Faryno, M.D.San Jose, CA 951241285650911
  4. Jim Hur, M.D.San Jose, CA 951241245336585
  5. Nidhi Jacob, M.D.San Jose, CA 951241154611762
  6. Lelanya Kearns, MDSan Jose, CA 951241356398697
  7. Hao Nguyen, M.D.San Jose, CA 951241750429684
  8. Vida Parsi, M.D.San Jose, CA 951241942245717

Common questions

What is Diana Aung, M.D.'s NPI number?

Diana Aung, M.D.'s National Provider Identifier (NPI) is 1497814834, issued on Dec 8, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Diana Aung, M.D. located?

The NPPES record lists a practice address at 2400 Samaritan Drive, San Jose, CA, 95124. Phone: (408) 523-3870. Providers update this record themselves, so call before visiting.

How can I verify Diana Aung, M.D.'s license?

NPPES lists California license number A78991, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Diana Aung, M.D. prescribe under Medicare Part D?

In 2024, Diana Aung, M.D. had 67 Medicare Part D claims for 23 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.