NPPES file of Aug 9, 2026

Hai Kevin Nguyen, MD

Specialist · San Jose, CA

Hai Kevin Nguyen, MD is a specialist with a practice address in San Jose, California, and NPI 1619022431, issued on Jan 24, 2007. Check the license (California A88085, as entered in NPPES) with the California board that licenses this profession; 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
1619022431
Name
Hai Kevin Nguyen
Credential
MD
Primary taxonomy
Specialist 174400000X
License number
A88085 CA
Self-reported in NPPES; status is on the state search
Practice location
459 S Capitol Ave Ste 4, San Jose, CA 95127
Phone
(408) 929-5505
Enumerated
Jan 24, 2007
Record last updated
Jan 10, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(408) 929-5705
Medicare enrollment
Enrolled (PECOS I20050809001030); may accept Medicare assignment
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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Verify Hai Kevin Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license A88085
    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
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87% fewer Medicare Part D claims than the average specialist in 2024

184 Medicare Part D claims for 87 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D.

  1. Hai Nguyen184
  2. Specialty average1,380

Most prescribed

  1. Prednisone53 claims
  2. Azithromycin34 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: $29.20

1 payment: food and beverage; the largest payer was Lilly USA, LLC. The 5,844 providers of this specialty with any payment received $4,760.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Hai Nguyen$29.20
  2. Specialty average$4,760.79

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

Hai Kevin Nguyen among 5,749 specialist records in California

Hai Kevin Nguyen, MD is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 40% of them.

  • NPI issued2007 · 40% of these records are older, 44% newer
  • In a Medicare fileYes · 30% of these records are
  • In the CMS Doctors and Clinicians fileYes · 19% of these records are
  • Graduated1998 · median 1989 among the 1,075 with a school on file
  • Record last updated2018 · 77% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Specialist providers in California

There are 5,749 specialist records in California.

The 8 specialist records with the nearest ZIP codes

  1. Charles Aring, M.D.San Jose, CA 951281295751162
  2. Anissa BalderasSan Jose, CA 951261407693377
  3. Ella Benoza, M.D.San Jose, CA 951281457392219
  4. Alondra BravoSan Jose, CA 951261013775881
  5. Eloisa Campos CastanedaSan Jose, CA 951261649011586
  6. Armando EscamillaSan Jose, CA 951261285343970
  7. Hashem Farr, MDSan Jose, CA 951281336164375
  8. Teresa GarciaSan Jose, CA 951261427767805

Common questions

What is Hai Kevin Nguyen, MD's NPI number?

Hai Kevin Nguyen, MD's National Provider Identifier (NPI) is 1619022431, issued on Jan 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Hai Kevin Nguyen, MD located?

The NPPES record lists a practice address at 459 S Capitol Ave Ste 4, San Jose, CA, 95127. Phone: (408) 929-5505. Providers update this record themselves, so call before visiting.

How can I verify Hai Kevin Nguyen, MD's license?

NPPES lists California license number A88085, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Hai Kevin Nguyen, MD prescribe under Medicare Part D?

In 2024, Hai Kevin Nguyen, MD had 184 Medicare Part D claims for 87 beneficiaries; the average among specialist prescribers was 1,380. 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.