Jon Yang, M.D.
NPI 1649417742 · Ophthalmology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jon Yang, M.D. is a Ophthalmology Physician provider in San Francisco, CA (NPI 1649417742).
Provider details
- NPI number
- 1649417742
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A106461 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
17 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
5,163 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) |
|---|---|---|
| Established Patient Problem Focused Exam of Visual System92012 | 966 | $119 |
| Exam of Visual Field With Extended Testing92083 | 765 | $87 |
| Imaging of Retina92134 | 531 | $51 |
| Photography of the Retina92250 | 497 | $47 |
| Extended Exam of the Back Part of the Eye With Optic Nerve Drawing92202 | 428 | $19 |
| Exam of the Internal Drainage System of Eye92020 | 353 | $36 |
| Removal of Eyelashes Using Forceps67820 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 33 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 457 | 153 |
| Azelastine Hcl | 371 | 164 |
| Bacitracin/Polymyxin B Sulfatebrand: Bacitracin-Polymyxin | 358 | 254 |
| Timolol Maleate | 348 | 114 |
| Brimonidine Tartrate | 220 | 74 |
| Prednisolone Acetate | 219 | 150 |
| Epinastine Hcl | 215 | 119 |
| Diclofenac Sodium | 160 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$39 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
Registry dates
- Enumerated
- 2009-01-11
- Last updated
- 2012-02-17
Frequently asked questions
- What is Jon Yang's NPI number?
- Jon Yang's National Provider Identifier (NPI) is 1649417742, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jon Yang's specialty?
- Jon Yang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Jon Yang located?
- Jon Yang's practice location on file with NPPES is 929 Clay St, San Francisco, CA 94108-1556.
- What is Jon Yang's phone number?
- The practice phone number listed in the NPPES registry for Jon Yang is (415) 986-3239.
- Does Jon Yang accept Medicare?
- Jon Yang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jon Yang's NPI active?
- Yes — Jon Yang's NPI (1649417742) is active in the NPPES registry as of the last update on 2012-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.