Steven A. Harrison, M.D.
Retina Specialist (Ophthalmology) Physician · Walnut Creek, CA
Steven A. Harrison, M.D. is a retina specialist (ophthalmology) physician with a practice address in Walnut Creek, California, and NPI 1821023755, issued on Jul 11, 2006. Check the license (California G63736, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Steven A. Harrison
- Credential
- M.D.
- Primary taxonomy
- Retina Specialist (Ophthalmology) Physician 207WX0107X
- License number
- G63736 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1299 Newell Hill PL, Walnut Creek, CA 94596
- Phone
- (925) 947-0505
- Enumerated
- Jul 11, 2006
- Record last updated
- May 2, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (925) 947-1515
- Medicaid ID
- 00G637360 CA
- Medicare enrollment
- Enrolled (PECOS I20040526001577); accepts Medicare assignment
- Medical or professional school
- New York University School Of Medicine, 1987
- Entity
- Type 1 · individual
8 nearest retina specialist (ophthalmology) physician records → All 205 in California → Look up another NPI →
Also registered at 1299 Newell Hill PL
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Susan Salem, DCChiropractor1801939525
Verify Steven A. Harrison in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G63736Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average retina specialist (ophthalmology) physician in 2024
161 Medicare Part D claims for 39 beneficiaries, against an average of 620 among the 1,449 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.
Most prescribed
- Ketorolac Tromethamine50 claims
- Latanoprost38 claims
- Prednisolone Acetate24 claims
- Dorzolamide-Timolol19 claims
- Timolol Maleate12 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 MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $250.54
11 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 1,253 providers of this specialty with any payment received $7,667.49 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Steven A Harrison MD A Professional CorporationWalnut Creek, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Steven A. Harrison among 205 retina specialist (ophthalmology) physician records in California
Steven A. Harrison, M.D. is one of 205 retina specialist (ophthalmology) physician records with a practice address in California. 98% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 65% newer
- In a Medicare fileYes · 98% of these records are
- In the CMS Doctors and Clinicians fileYes · 92% of these records are
- Graduated1987 · median 2007 among the 189 with a school on file
- Record last updated2017 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0107X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Retina Specialist (Ophthalmology) Physician providers in California
There are 205 retina specialist (ophthalmology) physician records in California.
All 205 in California → Every provider in Walnut Creek → Retina Specialist (Ophthalmology) Physician nationwide →
The 8 retina specialist (ophthalmology) physician records with the nearest ZIP codes
- Jennifer Tingley, MDWalnut Creek, CA 945961184187379
- Stewart Daniels, M.D.Walnut Creek, CA 945981124052428
- Roger Goldberg, MDWalnut Creek, CA 945981184866584
- Craig Leong, M.D.Walnut Creek, CA 945981639103344
- Caesar Luo, M.D.Walnut Creek, CA 945981669684072
- Elizabeth Marlow Lehrburger, M.D.Walnut Creek, CA 945981336568815
- Tushar Ranchod, MDWalnut Creek, CA 945981316003304
- Subhransu Ray, M.D., PH.D.Walnut Creek, CA 945981578597878
Common questions
What is Steven A. Harrison, M.D.'s NPI number?
Steven A. Harrison, M.D.'s National Provider Identifier (NPI) is 1821023755, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven A. Harrison, M.D. located?
The NPPES record lists a practice address at 1299 Newell Hill PL, Walnut Creek, CA, 94596. Phone: (925) 947-0505. Providers update this record themselves, so call before visiting.
How can I verify Steven A. Harrison, M.D.'s license?
NPPES lists California license number G63736, 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 Steven A. Harrison, M.D. prescribe under Medicare Part D?
In 2024, Steven A. Harrison, M.D. had 161 Medicare Part D claims for 39 beneficiaries; the average among retina specialist (ophthalmology) physician prescribers was 620. Part D covers Medicare prescriptions only.
What is Steven A. Harrison, M.D.'s MIPS final score?
The 2023 MIPS final score is 100 of 100. 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.