Chi Chien Yau, DO
NPI 1447756317 · Sports Medicine (Family Medicine) Physician · Oakland, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chi Chien Yau, DO is a Sports Medicine (Family Medicine) Physician provider in Oakland, CA (NPI 1447756317).
Provider details
- NPI number
- 1447756317
- Entity type
- Individual
- Primary specialty
- Sports Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
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
8 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 2 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Meloxicam | 53 | 30 |
| Ibuprofen | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 6801 Park Ter Ste 400Los Angeles, CA 90045-9212Phone: (310) 665-7200
- 1121 E North AveMilwaukee, WI 53212-3515Phone: (414) 267-6520
Registry dates
- Enumerated
- 2018-04-01
- Last updated
- 2023-02-27
- Certified
- 2023-02-27
Frequently asked questions
- What is Chi Chien Yau's NPI number?
- Chi Chien Yau's National Provider Identifier (NPI) is 1447756317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chi Chien Yau's specialty?
- Chi Chien Yau is listed in the NPPES registry with a primary specialty of Sports Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Chi Chien Yau located?
- Chi Chien Yau's practice location on file with NPPES is 3600 Broadway, Oakland, CA 94611-5730.
- What is Chi Chien Yau's phone number?
- The practice phone number listed in the NPPES registry for Chi Chien Yau is (510) 362-4243.
- Does Chi Chien Yau accept Medicare?
- Chi Chien Yau is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chi Chien Yau's NPI active?
- Yes — Chi Chien Yau's NPI (1447756317) is active in the NPPES registry as of the last update on 2023-02-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.