Michael Yang, MD
NPI 1699336974 · Ophthalmology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Yang, MD is a Ophthalmology Physician provider in Stanford, CA (NPI 1699336974).
Provider details
- NPI number
- 1699336974
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A180708 (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
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,045 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 Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 307 | $129 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 126 | $89 |
| Imaging of Retina92134 | 121 | $39 |
| Imaging of Optic Nerve92133 | 109 | $35 |
| Exam of Visual Field With Extended Testing92083 | 107 | $66 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 76 | $169 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 1,427 | 516 |
| Brimonidine Tartrate | 454 | 165 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 421 | 162 |
| Timolol Maleate | 391 | 178 |
| Prednisolone Acetate | 268 | 193 |
| Dorzolamide Hcl | 139 | 56 |
| Netarsudil Mesylatebrand: Rhopressa | 135 | 41 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$558 across 13 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 (3)
- 200 Cottage Ave Ste 102Manteca, CA 95336-4935Phone: (209) 239-5303Fax: (209) 239-0090
- 1334 Nelson AveModesto, CA 95350-5341Phone: (209) 579-8800Fax: (209) 579-1407
- 36 W Yokuts Ave Ste 1Stockton, CA 95207-5713Phone: (209) 952-3700Fax: (209) 952-0553
Registry dates
- Enumerated
- 2019-06-26
- Last updated
- 2024-03-21
- Certified
- 2024-03-21
Frequently asked questions
- What is Michael Yang's NPI number?
- Michael Yang's National Provider Identifier (NPI) is 1699336974, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Yang's specialty?
- Michael Yang is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Yang located?
- Michael Yang's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Michael Yang's phone number?
- The practice phone number listed in the NPPES registry for Michael Yang is (650) 723-4000.
- Does Michael Yang accept Medicare?
- Michael Yang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Yang's NPI active?
- Yes — Michael Yang's NPI (1699336974) is active in the NPPES registry as of the last update on 2024-03-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.