NPPES file of Aug 9, 2026

David-Huy Nhu Nguyen, M.D., PH.D.

Infectious Disease Physician · San Francisco, CA

David-Huy Nhu Nguyen, M.D., PH.D. is an infectious disease physician with a practice address in San Francisco, California, and NPI 1083971972, issued on Apr 16, 2012. Check the license (California A129714, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083971972
Name
David-Huy Nhu Nguyen
Credential
M.D., PH.D.
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
A129714 CA
Self-reported in NPPES; status is on the state search
Practice location
505 Parnassus Ave, San Francisco, CA 94143
Phone
(415) 476-1528
Enumerated
Apr 16, 2012
Record last updated
Jun 20, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20170629000752); accepts Medicare assignment
Medical or professional school
Stanford University School Of Medicine, 2012
Telehealth
Offers telehealth (CMS)
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 505 Parnassus Ave

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

  1. Alexander Aabedi, MDStudent in an Organized Health Care Education/Training Program1245971480
  2. Kathryn Aaronson, RN, CPNPPediatric Nurse Practitioner1992030951
  3. Sharon AbadaStudent in an Organized Health Care Education/Training Program1003492844
  4. Abul Abbas, MBBSAnatomic Pathology Physician1881652964
  5. Jesse Abelson, MDInternal Medicine Physician1083843817
  6. Rhonald AbitonaAcute Care Nurse Practitioner1164993473

Verify David-Huy Nhu Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A129714
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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96% fewer Medicare Part D claims than the average infectious disease physician in 2024

28 Medicare Part D claims, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. David-Huy Nguyen28
  2. Specialty average689

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.

The practice group's MIPS final score for 2023 (Medicare payment program): 74.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%46.7
  3. Promoting interoperabilityout of 100 · 25%76.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Regents OF The University OF CaliforniaSan Francisco, CA
  2. University OF California San FranciscoSan Francisco, CA

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

David-Huy Nhu Nguyen among 1,119 infectious disease physician records in California

David-Huy Nhu Nguyen, M.D., PH.D. is one of 1,119 infectious disease physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 74% of them.

  • NPI issued2012 · 74% of these records are older, 23% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2012 · median 2003 among the 735 with a school on file
  • Record last updated2017 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in California

There are 1,119 infectious disease physician records in California.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Cameron Ashbaugh, MDSan Francisco, CA 941431114900537
  2. Oliver Bacon, M.D.San Francisco, CA 941431497863146
  3. Huyen Cao, MDSan Francisco, CA 941431700842234
  4. Peter Chin-Hong, MDSan Francisco, CA 941431215988563
  5. John Fangman, MDSan Francisco, CA 941431881645737
  6. Timothy Henrich, M.D.San Francisco, CA 941431902831902
  7. Vivek Jain, M.D.San Francisco, CA 941431093747248
  8. Jane Koehler, MDSan Francisco, CA 941431689632747

Common questions

What is David-Huy Nhu Nguyen, M.D., PH.D.'s NPI number?

David-Huy Nhu Nguyen, M.D., PH.D.'s National Provider Identifier (NPI) is 1083971972, issued on Apr 16, 2012. An NPI identifies a provider in billing; it is not a license.

Where is David-Huy Nhu Nguyen, M.D., PH.D. located?

The NPPES record lists a practice address at 505 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 476-1528. Providers update this record themselves, so call before visiting.

How can I verify David-Huy Nhu Nguyen, M.D., PH.D.'s license?

NPPES lists California license number A129714, 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 David-Huy Nhu Nguyen, M.D., PH.D. prescribe under Medicare Part D?

In 2024, David-Huy Nhu Nguyen, M.D., PH.D. had 28 Medicare Part D claims; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

What is David-Huy Nhu Nguyen, M.D., PH.D.'s MIPS final score?

The 2023 MIPS final score is 74.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.