Steven Harrison, M.D.
NPI 1821023755 · Retina Specialist (Ophthalmology) Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Harrison, M.D. is a Retina Specialist (Ophthalmology) Physician provider in Walnut Creek, CA (NPI 1821023755).
Provider details
- NPI number
- 1821023755
- Entity type
- Individual
- Primary specialty
- Retina Specialist (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G63736 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,468 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Imaging of Retina92134 | 1,511 | $54 |
| Established Patient Complete Exam of Visual System92014 | 1,204 | $167 |
| Injection of Drug Into Eye67028 | 948 | $146 |
| Established Patient Problem Focused Exam of Visual System92012 | 369 | $120 |
| Compounded Drug, Not Otherwise ClassifiedJ7999 | 155 | $89 |
| New Patient Complete Exam of Visual System92004 | 124 | $196 |
| Extended Exam of the Back Part of the Eye With Retinal Drawing |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketorolac Tromethamine | 50 | 13 |
| Latanoprost | 38 | — |
| Prednisolone Acetate | 24 | — |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 19 | — |
| Timolol Maleate | 12 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$251 across 11 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-11
- Last updated
- 2017-05-02
Frequently asked questions
- What is Steven Harrison's NPI number?
- Steven Harrison's National Provider Identifier (NPI) is 1821023755, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Harrison's specialty?
- Steven Harrison is listed in the NPPES registry with a primary specialty of Retina Specialist (Ophthalmology) Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Harrison located?
- Steven Harrison's practice location on file with NPPES is 1299 Newell Hill Pl, Walnut Creek, CA 94596-5292.
- What is Steven Harrison's phone number?
- The practice phone number listed in the NPPES registry for Steven Harrison is (925) 947-0505.
- Does Steven Harrison accept Medicare?
- Steven Harrison is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Harrison's NPI active?
- Yes — Steven Harrison's NPI (1821023755) is active in the NPPES registry as of the last update on 2017-05-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.