Louis Yang MD
NPI 1215605530 · Ophthalmology Physician · San Rafael, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Yang MD is a Ophthalmology Physician organization in San Rafael, CA (NPI 1215605530).
Provider details
- NPI number
- 1215605530
- Entity type
- Organization
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Louis Yang, Ophthalmologist(206) 399-1273
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-09-01
- Last updated
- 2021-10-06
- Certified
- 2021-10-06
Frequently asked questions
- What is Louis Yang MD's NPI number?
- Louis Yang MD's National Provider Identifier (NPI) is 1215605530, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Louis Yang MD?
- Louis Yang MD is classified in the NPPES registry as Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Yang MD located?
- Louis Yang MD's practice location on file with NPPES is 950 Northgate Dr Ste 209, San Rafael, CA 94903-3433.
- What is Louis Yang MD's phone number?
- The practice phone number listed in the NPPES registry for Louis Yang MD is (415) 479-2373.
- Does Louis Yang MD accept Medicare?
- Louis Yang MD is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Louis Yang MD?
- The authorized official listed on Louis Yang MD's NPPES record is Louis Yang, Ophthalmologist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Louis Yang MD's NPI active?
- Yes — Louis Yang MD's NPI (1215605530) is active in the NPPES registry as of the last update on 2021-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.