Martin Walker, M.D.
NPI 1548305865 · Internal Medicine Physician · Carpinteria, CA
Martin Walker, M.D. is a Internal Medicine Physician provider in Carpinteria, CA (NPI 1548305865).
Provider details
- NPI number
- 1548305865
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G 20811 (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
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
Mailing address
Registry dates
- Enumerated
- 2007-02-21
- Last updated
- 2007-07-08
Frequently asked questions
- What is Martin Walker's NPI number?
- Martin Walker's National Provider Identifier (NPI) is 1548305865, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Martin Walker's specialty?
- Martin Walker is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Martin Walker located?
- Martin Walker's practice location on file with NPPES is 4575 El Carro Ln, Carpinteria, CA 93013-1304.
- What is Martin Walker's phone number?
- The practice phone number listed in the NPPES registry for Martin Walker is (805) 684-1013.
- Is Martin Walker's NPI active?
- Yes — Martin Walker's NPI (1548305865) 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.