NPPES file of Aug 9, 2026

Gregory Allen Stainer, MD FACS

Ophthalmology Physician · La Jolla, CA

Gregory Allen Stainer, MD FACS is an ophthalmology physician with a practice address in La Jolla, California, and NPI 1295729465, issued on Sep 2, 2005. Check the license (California G41135, 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
1295729465
Name
Gregory Allen Stainer
Credential
MD FACS
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
G41135 CA
Self-reported in NPPES; status is on the state search
Practice location
1212 Skylark Dr, La Jolla, CA 92037
Phone
(661) 717-0237
Enumerated
Sep 2, 2005
Record last updated
Dec 12, 2024
Medicaid IDs
00G411350 CA
ZZZ37940Z CA
Medicare enrollment
Enrolled (PECOS I20110401000680); accepts Medicare assignment
Medical or professional school
Northwestern College Of Chiropractic, 1976
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.
Download card Updates feed

Verify Gregory Allen Stainer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G41135
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

61% fewer Medicare Part D claims than the average ophthalmology physician in 2024

586 Medicare Part D claims for 101 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 44% of claims.

  1. Gregory Stainer586
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate106 claims
  2. Moxifloxacin102 claims
  3. Ketorolac Tromethamine54 claims
  4. Latanoprost47 claims
  5. Erythromycin41 claims
  6. Timolol Maleate23 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): 86.9 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 score100.0
  2. Costout of 100 · 30%43.7
  3. Promoting interoperabilityout of 100 · 25%84.0
  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: $2,172.25

35 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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. Gregory Stainer$2,172.25
  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 3 group practices

  1. California Retina Associates, LPChula Vista, CA
  2. North County Eye Center, Inc.Escondido, CA
  3. North County Eye Physicians, IncPoway, CA

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

Gregory Allen Stainer among 2,899 ophthalmology physician records in California

Gregory Allen Stainer, MD FACS 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 91% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated1976 · median 2001 among the 1,907 with a school on file
  • Record last updated2024 · 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).

51 ophthalmology physician records list a practice address in La Jolla

They are 51 of the 3,648 NPPES records with a practice address in La Jolla, and 2,899 ophthalmology physician records in California.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Daniel Coden, MDLa Jolla, CA 920371942317508
  2. Libro Dizinno, M.D.La Jolla, CA 920371619967809
  3. Martin Friedlander, MDLa Jolla, CA 920371952318404
  4. Anne Hanneken, MDLa Jolla, CA 920371699876011
  5. Alexander Kim, MDLa Jolla, CA 920371942242961
  6. Leah Levi, MDLa Jolla, CA 920371043262314
  7. Richard Lin, MDLa Jolla, CA 920371821013863
  8. Geva Mannor, M.D.La Jolla, CA 920371730140849

Common questions

What is Gregory Allen Stainer, MD FACS's NPI number?

Gregory Allen Stainer, MD FACS's National Provider Identifier (NPI) is 1295729465, issued on Sep 2, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Allen Stainer, MD FACS located?

The NPPES record lists a practice address at 1212 Skylark Dr, La Jolla, CA, 92037. Phone: (661) 717-0237. Providers update this record themselves, so call before visiting.

How can I verify Gregory Allen Stainer, MD FACS's license?

NPPES lists California license number G41135, 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 Gregory Allen Stainer, MD FACS prescribe under Medicare Part D?

In 2024, Gregory Allen Stainer, MD FACS had 586 Medicare Part D claims for 101 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Gregory Allen Stainer, MD FACS's MIPS final score?

The 2023 MIPS final score is 86.9 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.