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Ann Walker, MD
NPI 1730374901 · Internal Medicine Physician · Walnut, CA
Ann Walker, MD is a Internal Medicine Physician provider in Walnut, CA (NPI 1730374901).
Provider details
- NPI number
- 1730374901
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- G85945 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
1100 N Grand Ave
Bldg. 67b
Walnut, CA 91789-1341
Phone: (909) 594-5611
Fax: (909) 468-3997
Street-level locationGet directions
Mailing address
3629 Glenwood Ave
Glendale, CA 91208-1053
Registry dates
- Enumerated
- 2007-09-11
- Last updated
- 2007-09-11
Frequently asked questions
- What is Ann Walker's NPI number?
- Ann Walker's National Provider Identifier (NPI) is 1730374901, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann Walker's specialty?
- Ann Walker is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ann Walker located?
- Ann Walker's practice location on file with NPPES is 1100 N Grand Ave, Walnut, CA 91789-1341.
- What is Ann Walker's phone number?
- The practice phone number listed in the NPPES registry for Ann Walker is (909) 594-5611.
- Is Ann Walker's NPI active?
- Yes — Ann Walker's NPI (1730374901) is active in the NPPES registry as of the last update on 2007-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.