IndividualActive
Winnie Tan, MD
NPI 1790863462 · Internal Medicine Physician · Sacramento, CA
Winnie Tan, MD is a Internal Medicine Physician provider in Sacramento, CA (NPI 1790863462).
Provider details
- NPI number
- 1790863462
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A29302 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
2025 Morse Ave
Sacramento, CA 95825-2115
Phone: (916) 973-5000
Street-level locationGet directions
Mailing address
1800 Harrison St Fl 7
Oakland, CA 94612-3429
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Winnie Tan's NPI number?
- Winnie Tan's National Provider Identifier (NPI) is 1790863462, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Winnie Tan's specialty?
- Winnie Tan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Winnie Tan located?
- Winnie Tan's practice location on file with NPPES is 2025 Morse Ave, Sacramento, CA 95825-2115.
- What is Winnie Tan's phone number?
- The practice phone number listed in the NPPES registry for Winnie Tan is (916) 973-5000.
- Is Winnie Tan's NPI active?
- Yes — Winnie Tan's NPI (1790863462) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.