Coyin Oh
NPI 1225666464 · Hematology & Oncology Physician · San Francisco, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Coyin Oh is a Hematology & Oncology Physician provider in San Francisco, CA (NPI 1225666464).
Provider details
- NPI number
- 1225666464
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 036165542 (IL)
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
6 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
- 2020-04-01
- Last updated
- 2024-05-06
- Certified
- 2024-05-06
Frequently asked questions
- What is Coyin Oh's NPI number?
- Coyin Oh's National Provider Identifier (NPI) is 1225666464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Coyin Oh's specialty?
- Coyin Oh is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Coyin Oh located?
- Coyin Oh's practice location on file with NPPES is 505 Parnassus Ave, San Francisco, CA 94143-2204.
- What is Coyin Oh's phone number?
- The practice phone number listed in the NPPES registry for Coyin Oh is (415) 476-1529.
- Does Coyin Oh accept Medicare?
- Coyin Oh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Coyin Oh's NPI active?
- Yes — Coyin Oh's NPI (1225666464) is active in the NPPES registry as of the last update on 2024-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.