Robert Johnson, M.D.
NPI 1558339747 · Retina Specialist (Ophthalmology) Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Johnson, M.D. is a Retina Specialist (Ophthalmology) Physician provider in San Francisco, CA (NPI 1558339747).
Provider details
- NPI number
- 1558339747
- Entity type
- Individual
- Primary specialty
- Retina Specialist (Ophthalmology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G52144 (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
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
5 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
2,434 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 | 932 | $53 |
| Established Patient Complete Exam of Visual System92014 | 718 | $166 |
| Injection of Drug Into Eye67028 | 508 | $165 |
| Photography of the Retina92250 | 102 | $46 |
| 1d and 2d Ultrasound Scan of Eye Tissue and Structures76510 | 73 | $92 |
| Compounded Drug, Not Otherwise ClassifiedJ7999 | 72 | $93 |
| New Patient Complete Exam of Visual System92004 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisolone Acetate | 18 | 12 |
| Timolol Maleate | 16 | — |
| Polymyxin B Sulf/Trimethoprimbrand: Polymyxin B Sul-Trimethoprim | 11 | — |
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.
$63 across 2 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
Additional practice locations (4)
- 100 Tamal Plz Ste 120Corte Madera, CA 94925-1176Phone: (415) 927-6600Fax: (415) 891-3329
- 400 30th St Ste 402Oakland, CA 94609-3305Phone: (510) 268-8277Fax: (510) 350-8803
- 101 S San Mateo Dr Ste 306San Mateo, CA 94401-3844Phone: (650) 342-7137
- 1981 N Broadway Ste 265Walnut Creek, CA 94596-3827Phone: (925) 295-1727Fax: (925) 954-7029
Registry dates
- Enumerated
- 2006-03-14
- Last updated
- 2020-08-21
- Certified
- 2020-08-21
Frequently asked questions
- What is Robert Johnson's NPI number?
- Robert Johnson's National Provider Identifier (NPI) is 1558339747, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Johnson's specialty?
- Robert Johnson is listed in the NPPES registry with a primary specialty of Retina Specialist (Ophthalmology) Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Johnson located?
- Robert Johnson's practice location on file with NPPES is 1445 Bush St, San Francisco, CA 94109-5520.
- What is Robert Johnson's phone number?
- The practice phone number listed in the NPPES registry for Robert Johnson is (415) 972-4600.
- Does Robert Johnson accept Medicare?
- Robert Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Johnson's NPI active?
- Yes — Robert Johnson's NPI (1558339747) is active in the NPPES registry as of the last update on 2020-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.