Advanced Gastroenterology, Inc.
NPI 1497970875 · Gastroenterology Physician · Thousand Oaks, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Advanced Gastroenterology, Inc. is a Gastroenterology Physician organization in Thousand Oaks, CA (NPI 1497970875).
Provider details
- NPI number
- 1497970875
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Gilbert Simoni, Owner(805) 719-0244
- License
- A77140 (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
Other names (DBA / former)
- Other name
- Agi
Registry dates
- Enumerated
- 2007-04-13
- Last updated
- 2025-02-11
- Certified
- 2025-02-11
Frequently asked questions
- What is Advanced Gastroenterology, Inc.'s NPI number?
- Advanced Gastroenterology, Inc.'s National Provider Identifier (NPI) is 1497970875, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Advanced Gastroenterology, Inc.?
- Advanced Gastroenterology, Inc. is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Advanced Gastroenterology, Inc. located?
- Advanced Gastroenterology, Inc.'s practice location on file with NPPES is 555 Marin St Ste 270, Thousand Oaks, CA 91360-4112.
- What is Advanced Gastroenterology, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Advanced Gastroenterology, Inc. is (805) 719-0244.
- Does Advanced Gastroenterology, Inc. accept Medicare?
- Advanced Gastroenterology, 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 Advanced Gastroenterology, Inc.?
- The authorized official listed on Advanced Gastroenterology, Inc.'s NPPES record is Gilbert Simoni, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Advanced Gastroenterology, Inc.'s NPI active?
- Yes — Advanced Gastroenterology, Inc.'s NPI (1497970875) is active in the NPPES registry as of the last update on 2025-02-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.