NPPES file of Aug 9, 2026

Jay M. Stewart, MD

Ophthalmology Physician · San Francisco, CA

Jay M. Stewart, MD is an ophthalmology physician with a practice address in San Francisco, California, and NPI 1134183189, issued on Apr 14, 2006. Check the license (California A74661, 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
1134183189
Name
Jay M. Stewart
Credential
MD
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
A74661 CA
Self-reported in NPPES; status is on the state search
Practice location
400 Parnassus Ave, San Francisco, CA 94143
Phone
(415) 353-2402
Enumerated
Apr 14, 2006
Record last updated
Jul 13, 2026
Fax
(415) 353-2713
Medicaid ID
0A7466100 CA
Medicare enrollment
Enrolled (PECOS I20050805000876); accepts Medicare assignment
Medical or professional school
Harvard Medical School, 1999
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 400 Parnassus Ave

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

  1. Jessica Abele, DPTPhysical Therapist1851648133
  2. Ian Adatia, MB CHBPediatric Cardiology Physician1427085299
  3. Daniel Adelman, M.D.Internal Medicine Physician1922041821
  4. Joshua Adler, MDInternal Medicine Physician1194781351
  5. Justin Ahn, M.D.Urology Physician1063755148
  6. Weiyun Ai, MDMedical Oncology Physician1649346842

Verify Jay M. Stewart in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A74661
    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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70% fewer Medicare Part D claims than the average ophthalmology physician in 2024

452 Medicare Part D claims for 135 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.

  1. Jay Stewart452
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate66 claims
  2. Latanoprost63 claims
  3. Ketorolac Tromethamine53 claims
  4. Brimonidine Tartrate51 claims
  5. Dorzolamide-Timolol42 claims
  6. Polymyxin B Sul-Trimethoprim42 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): 91.9 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 score83.5
  2. Costout of 100 · 30%68.0
  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).

Industry payments in 2024: $4,521.24

10 payments; by number, the most common kind was food and beverage; the largest payer was Carl Zeiss Meditec, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jay Stewart$4,521.24
  2. Specialty average$4,535.02

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

Bills Medicare through 2 group practices

  1. Ucsf Medical Group Business ServicesBerkeley, CA
  2. University OF California Sfgh Medical GroupSan Francisco, CA

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

Jay M. Stewart among 2,899 ophthalmology physician records in California

Jay M. Stewart, MD is one of 2,899 ophthalmology 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 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 45% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1999 · median 2001 among the 1,907 with a school on file
  • Record last updated2026 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in California

There are 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Nisha Acharya, M.D.San Francisco, CA 941431972544872
  2. Robert Bhisitkul, MDSan Francisco, CA 941431831138676
  3. Joseph Crawford, MDSan Francisco, CA 941431831141712
  4. Eugene De Juan, MDSan Francisco, CA 941431043262074
  5. Jacque Duncan, MDSan Francisco, CA 941431942252978
  6. Allan Flach, MDSan Francisco, CA 941431043261134
  7. Jonathan Horton, MDSan Francisco, CA 941431992757363
  8. David Hwang, MDSan Francisco, CA 941431346292224

Common questions

What is Jay M. Stewart, MD's NPI number?

Jay M. Stewart, MD's National Provider Identifier (NPI) is 1134183189, issued on Apr 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jay M. Stewart, MD located?

The NPPES record lists a practice address at 400 Parnassus Ave, San Francisco, CA, 94143. Phone: (415) 353-2402. Providers update this record themselves, so call before visiting.

How can I verify Jay M. Stewart, MD's license?

NPPES lists California license number A74661, 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 Jay M. Stewart, MD prescribe under Medicare Part D?

In 2024, Jay M. Stewart, MD had 452 Medicare Part D claims for 135 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Jay M. Stewart, MD's MIPS final score?

The 2023 MIPS final score is 91.9 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.