Martin a Josephson, M.D.
NPI 1437537693 · Medical Specialty Clinic/Center · Thousand Oaks, CA
Martin a Josephson, M.D. is a Medical Specialty Clinic/Center organization in Thousand Oaks, CA (NPI 1437537693).
Provider details
- NPI number
- 1437537693
- Entity type
- Organization
- Primary specialty
- Medical Specialty Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Debra Grasso, Practice Manager(805) 494-9494
- License
- G25198 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
- 2015-05-08
- Last updated
- 2015-05-08
Frequently asked questions
- What is Martin a Josephson, M.D.'s NPI number?
- Martin a Josephson, M.D.'s National Provider Identifier (NPI) is 1437537693, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Martin a Josephson, M.D.?
- Martin a Josephson, M.D. is classified in the NPPES registry as Medical Specialty Clinic/Center (Ambulatory Health Care Facilities).
- Where is Martin a Josephson, M.D. located?
- Martin a Josephson, M.D.'s practice location on file with NPPES is 2220 Lynn Rd, Thousand Oaks, CA 91360-1904.
- What is Martin a Josephson, M.D.'s phone number?
- The practice phone number listed in the NPPES registry for Martin a Josephson, M.D. is (805) 494-9494.
- Who is the authorized official for Martin a Josephson, M.D.?
- The authorized official listed on Martin a Josephson, M.D.'s NPPES record is Debra Grasso, Practice Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Martin a Josephson, M.D.'s NPI active?
- Yes — Martin a Josephson, M.D.'s NPI (1437537693) is active in the NPPES registry as of the last update on 2015-05-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.