Gregory H Johnson MD Inc
NPI 1831410919 · Gastroenterology Physician · Thousand Oaks, CA
Gregory H Johnson MD Inc is a Gastroenterology Physician organization in Thousand Oaks, CA (NPI 1831410919).
Provider details
- NPI number
- 1831410919
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Gregory Johnson, President(805) 497-9597
- License
- G25258 (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
16 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
- 2010-06-12
- Last updated
- 2010-06-12
Frequently asked questions
- What is Gregory H Johnson MD Inc's NPI number?
- Gregory H Johnson MD Inc's National Provider Identifier (NPI) is 1831410919, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gregory H Johnson MD Inc?
- Gregory H Johnson MD Inc is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory H Johnson MD Inc located?
- Gregory H Johnson MD Inc's practice location on file with NPPES is 227 W Janss Rd Ste 215, Thousand Oaks, CA 91360-1868.
- What is Gregory H Johnson MD Inc's phone number?
- The practice phone number listed in the NPPES registry for Gregory H Johnson MD Inc is (805) 497-9597.
- Who is the authorized official for Gregory H Johnson MD Inc?
- The authorized official listed on Gregory H Johnson MD Inc's NPPES record is Gregory Johnson, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gregory H Johnson MD Inc's NPI active?
- Yes — Gregory H Johnson MD Inc's NPI (1831410919) is active in the NPPES registry as of the last update on 2010-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.