Tammy Yau
NPI 1922634989 · Pediatrics Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tammy Yau is a Pediatrics Physician provider in San Jose, CA (NPI 1922634989).
Provider details
- NPI number
- 1922634989
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 183507 (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
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
- 2020-03-20
- Last updated
- 2023-11-01
- Certified
- 2023-11-01
Frequently asked questions
- What is Tammy Yau's NPI number?
- Tammy Yau's National Provider Identifier (NPI) is 1922634989, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tammy Yau's specialty?
- Tammy Yau is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Tammy Yau located?
- Tammy Yau's practice location on file with NPPES is 1993 Mckee Rd, San Jose, CA 95116-1406.
- What is Tammy Yau's phone number?
- The practice phone number listed in the NPPES registry for Tammy Yau is (888) 334-1000.
- Does Tammy Yau accept Medicare?
- Tammy Yau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tammy Yau's NPI active?
- Yes — Tammy Yau's NPI (1922634989) is active in the NPPES registry as of the last update on 2023-11-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.