Sierra Gastroenterology
NPI 1083830962 · Gastroenterology Physician · Lancaster, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sierra Gastroenterology is a Gastroenterology Physician organization in Lancaster, CA (NPI 1083830962).
Provider details
- NPI number
- 1083830962
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Steven Garrett, Billing Manager(310) 348-0500
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
- 2007-04-18
- Last updated
- 2008-02-13
Frequently asked questions
- What is Sierra Gastroenterology's NPI number?
- Sierra Gastroenterology's National Provider Identifier (NPI) is 1083830962, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Sierra Gastroenterology?
- Sierra Gastroenterology is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Sierra Gastroenterology located?
- Sierra Gastroenterology's practice location on file with NPPES is 44725 10th St W, Lancaster, CA 93534-3033.
- What is Sierra Gastroenterology's phone number?
- The practice phone number listed in the NPPES registry for Sierra Gastroenterology is (310) 348-0500.
- Does Sierra Gastroenterology accept Medicare?
- Sierra Gastroenterology 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 Sierra Gastroenterology?
- The authorized official listed on Sierra Gastroenterology's NPPES record is Steven Garrett, Billing Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Sierra Gastroenterology's NPI active?
- Yes — Sierra Gastroenterology's NPI (1083830962) is active in the NPPES registry as of the last update on 2008-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.