Melisa Yajima, MD
NPI 1215236682 · Medical Oncology Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melisa Yajima, MD is a Medical Oncology Physician provider in San Francisco, CA (NPI 1215236682).
Provider details
- NPI number
- 1215236682
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A123306 (CA)
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
15 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
- 2011-03-23
- Last updated
- 2022-06-09
- Certified
- 2022-06-09
Frequently asked questions
- What is Melisa Yajima's NPI number?
- Melisa Yajima's National Provider Identifier (NPI) is 1215236682, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melisa Yajima's specialty?
- Melisa Yajima is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Melisa Yajima located?
- Melisa Yajima's practice location on file with NPPES is 1825 4th St, San Francisco, CA 94143-2350.
- What is Melisa Yajima's phone number?
- The practice phone number listed in the NPPES registry for Melisa Yajima is (415) 885-3882.
- Does Melisa Yajima accept Medicare?
- Melisa Yajima is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melisa Yajima's NPI active?
- Yes — Melisa Yajima's NPI (1215236682) is active in the NPPES registry as of the last update on 2022-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.