Gary Gregerson, M.D., P.A.
NPI 1255762506 · Obstetrics & Gynecology Physician · Nampa, ID
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Gregerson, M.D., P.A. is a Obstetrics & Gynecology Physician organization in Nampa, ID (NPI 1255762506).
Provider details
- NPI number
- 1255762506
- Entity type
- Organization
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Gary Gregerson, President(208) 468-9400
- License
- M-6312 (ID)
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
12 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)
- Doing business as
- Advanced Specialty Care for Women
Registry dates
- Enumerated
- 2013-12-11
- Last updated
- 2015-08-24
Frequently asked questions
- What is Gary Gregerson, M.D., P.A.'s NPI number?
- Gary Gregerson, M.D., P.A.'s National Provider Identifier (NPI) is 1255762506, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gary Gregerson, M.D., P.A.?
- Gary Gregerson, M.D., P.A. is classified in the NPPES registry as Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Gregerson, M.D., P.A. located?
- Gary Gregerson, M.D., P.A.'s practice location on file with NPPES is 1611 12th Ave Rd, Nampa, ID 83686-7715.
- What is Gary Gregerson, M.D., P.A.'s phone number?
- The practice phone number listed in the NPPES registry for Gary Gregerson, M.D., P.A. is (208) 468-9400.
- Does Gary Gregerson, M.D., P.A. accept Medicare?
- Gary Gregerson, M.D., P.A. 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 Gary Gregerson, M.D., P.A.?
- The authorized official listed on Gary Gregerson, M.D., P.A.'s NPPES record is Gary Gregerson, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gary Gregerson, M.D., P.A.'s NPI active?
- Yes — Gary Gregerson, M.D., P.A.'s NPI (1255762506) is active in the NPPES registry as of the last update on 2015-08-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.