NPPES file of Aug 9, 2026

Henry Weinstock, M.D.

Family Medicine Physician · San Jose, CA

Henry Weinstock, M.D. is a family medicine physician with a practice address in San Jose, California, and NPI 1043312655, issued on Sep 3, 2006. Check the license (California G51131, 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
1043312655
Name
Henry Weinstock
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G51131 CA
Self-reported in NPPES; status is on the state search
Practice location
227 N Jackson Ave, San Jose, CA 95116
Phone
(408) 871-3400
Enumerated
Sep 3, 2006
Record last updated
Dec 4, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
00G511310 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 227 N Jackson Ave

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

  1. Jack Ackerman, DOInternal Medicine Physician1780794107
  2. Dinesh Bhuva, M.D.Orthopaedic Surgery Physician1760592075
  3. Charles Bruhn, M.D.Endocrinology, Diabetes & Metabolism Physician1790895928
  4. Marina Chechelnitsky, M.D.Ophthalmology Physician1629188875
  5. Dean Didech, M.D.Pediatrics Physician1417973942
  6. Arthur Feldman, M.D.Internal Medicine Physician1669576864

Verify Henry Weinstock in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G51131
    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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91% more Medicare Part D claims than the average family medicine physician in 2024

6,778 Medicare Part D claims for 588 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 227 claims were for opioids.

  1. Henry Weinstock6,778
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium539 claims
  2. Amlodipine Besylate404 claims
  3. Hydrochlorothiazide288 claims
  4. Metformin Hcl256 claims
  5. Lisinopril212 claims
  6. Losartan Potassium187 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 83.6 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. Qualityout of 100 · 30% of the final score83.8
  2. Costout of 100 · 30%61.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Henry Weinstock among 17,133 family medicine physician records in California

Henry Weinstock, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% 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 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2020 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

265 family medicine physician records list a practice address in San Jose

They are 265 of the 20,925 NPPES records with a practice address in San Jose, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Sekhar Ujwala Eadula, M.D.San Jose, CA 951161427313345
  2. Elena Ermakova, MDSan Jose, CA 951161932322112
  3. Darith Khay, M.D.San Jose, CA 951161295761609
  4. Joshua Lopez, D.O.San Jose, CA 951161629288766
  5. James Luu, D.O.San Jose, CA 951161104915198
  6. Chau Nguyen, M.D.San Jose, CA 951161285612028
  7. Hai Nguyen, M.D.San Jose, CA 951161326079997
  8. Vu Nguyen, D.O.San Jose, CA 951161225063290

Common questions

What is Henry Weinstock, M.D.'s NPI number?

Henry Weinstock, M.D.'s National Provider Identifier (NPI) is 1043312655, issued on Sep 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Henry Weinstock, M.D. located?

The NPPES record lists a practice address at 227 N Jackson Ave, San Jose, CA, 95116. Phone: (408) 871-3400. Providers update this record themselves, so call before visiting.

How can I verify Henry Weinstock, M.D.'s license?

NPPES lists California license number G51131, 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 Henry Weinstock, M.D. prescribe under Medicare Part D?

In 2024, Henry Weinstock, M.D. had 6,778 Medicare Part D claims for 588 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

What is Henry Weinstock, M.D.'s MIPS final score?

The 2023 MIPS final score is 83.6 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.