Jeffrey Feinfield, M.D. Inc
NPI 1013047455 · Specialist · Thousand Oaks, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffrey Feinfield, M.D. Inc is a Specialist organization in Thousand Oaks, CA (NPI 1013047455).
Provider details
- NPI number
- 1013047455
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Jeffrey Feinfield, Owner(805) 494-4797
Specialties & taxonomies
Other Service Providers
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
- 2007-03-06
- Last updated
- 2018-06-21
Frequently asked questions
- What is Jeffrey Feinfield, M.D. Inc's NPI number?
- Jeffrey Feinfield, M.D. Inc's National Provider Identifier (NPI) is 1013047455, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jeffrey Feinfield, M.D. Inc?
- Jeffrey Feinfield, M.D. Inc is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Jeffrey Feinfield, M.D. Inc located?
- Jeffrey Feinfield, M.D. Inc's practice location on file with NPPES is 415 Rolling Oaks Dr, Thousand Oaks, CA 91361-1029.
- What is Jeffrey Feinfield, M.D. Inc's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Feinfield, M.D. Inc is (805) 494-4797.
- Does Jeffrey Feinfield, M.D. Inc accept Medicare?
- Jeffrey Feinfield, M.D. Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Jeffrey Feinfield, M.D. Inc?
- The authorized official listed on Jeffrey Feinfield, M.D. Inc's NPPES record is Jeffrey Feinfield, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jeffrey Feinfield, M.D. Inc's NPI active?
- Yes — Jeffrey Feinfield, M.D. Inc's NPI (1013047455) is active in the NPPES registry as of the last update on 2018-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.