Lydia Tam, MD
NPI 1467193284 · Pediatric Hematology & Oncology Physician · San Francisco, CA
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lydia Tam, MD is a Pediatric Hematology & Oncology Physician provider in San Francisco, CA (NPI 1467193284).
Provider details
- NPI number
- 1467193284
- Entity type
- Individual
- Primary specialty
- Pediatric Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 61298437 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
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
- 2022-04-05
- Last updated
- 2025-07-09
- Certified
- 2025-07-09
Frequently asked questions
- What is Lydia Tam's NPI number?
- Lydia Tam's National Provider Identifier (NPI) is 1467193284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lydia Tam's specialty?
- Lydia Tam is listed in the NPPES registry with a primary specialty of Pediatric Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Lydia Tam located?
- Lydia Tam's practice location on file with NPPES is 550 16th Street, 4th Floor Box 0110, San Francisco, CA 94158.
- What is Lydia Tam's phone number?
- The practice phone number listed in the NPPES registry for Lydia Tam is (415) 476-3565.
- Does Lydia Tam accept Medicare?
- Lydia Tam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lydia Tam's NPI active?
- Yes — Lydia Tam's NPI (1467193284) is active in the NPPES registry as of the last update on 2025-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.