Barbara Towner-Winchester, MD
NPI 1487691317 · Internal Medicine Physician · Oakland, CA
Barbara Towner-Winchester, MD is a Internal Medicine Physician provider in Oakland, CA (NPI 1487691317).
Provider details
- NPI number
- 1487691317
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G45418 (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
20 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
- 2006-05-31
- Last updated
- 2012-01-05
Frequently asked questions
- What is Barbara Towner-Winchester's NPI number?
- Barbara Towner-Winchester's National Provider Identifier (NPI) is 1487691317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Towner-Winchester's specialty?
- Barbara Towner-Winchester is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Barbara Towner-Winchester located?
- Barbara Towner-Winchester's practice location on file with NPPES is 10700 Macarthur Blvd, Oakland, CA 94605-5260.
- What is Barbara Towner-Winchester's phone number?
- The practice phone number listed in the NPPES registry for Barbara Towner-Winchester is (510) 563-4300.
- Is Barbara Towner-Winchester's NPI active?
- Yes — Barbara Towner-Winchester's NPI (1487691317) is active in the NPPES registry as of the last update on 2012-01-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.