William Coburn, M.D.
NPI 1144336983 · Internal Medicine Physician · Thousand Oaks, CA
William Coburn, M.D. is a Internal Medicine Physician provider in Thousand Oaks, CA (NPI 1144336983).
Provider details
- NPI number
- 1144336983
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- C23131 (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
- 2006-08-22
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Coburn's NPI number?
- William Coburn's National Provider Identifier (NPI) is 1144336983, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Coburn's specialty?
- William Coburn is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Coburn located?
- William Coburn's practice location on file with NPPES is 331 S Moorpark Rd, Thousand Oaks, CA 91361.
- What is William Coburn's phone number?
- The practice phone number listed in the NPPES registry for William Coburn is (805) 495-0455.
- Is William Coburn's NPI active?
- Yes — William Coburn's NPI (1144336983) 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.