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ADVANCED SPECIALTY CARE FOR WOMEN
NPI 1255762506
Obstetrics & Gynecology in Nampa, ID

Active since December 11, 2013CLIA Certified · 2 labs
1611 12TH AVE RD, SUITE A, NAMPA, ID 83686(208) 468-9400(208) 468-9447 Get Directions Write a Review

NPPES record last updated: August 24, 2015. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Advanced Specialty Care For Women NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ADVANCED SPECIALTY CARE FOR WOMEN (NPI 1255762506) is a healthcare organization registered as an obstetrics & gynecology in Nampa, Idaho and active in the NPI registry since December 2013. The organization holds 2 active CLIA laboratory certificates and lists Gary Ned Gregerson, President, as its authorized official.

NPPES Registry Identity

NPI1255762506
Entity TypeOrganization
Primary Taxonomy207V00000X
Legal Business NameGARY GREGERSON, M.D., P.A.
Location Address1611 12TH AVE RD, SUITE ANampa, ID 83686-7715
Mailing Address1611 12th Ave Rd, Suite ANampa, ID 83686-7715 · (208) 468-9400 · Fax (208) 468-9447
Phone(208) 468-9400
Fax(208) 468-9447
Organization SubpartNo
Authorized OfficialGary Ned GregersonPresident · (208) 468-9400
Enumeration DateDecember 11, 2013
Last NPPES UpdateAugust 24, 2015
✔ NPI 1255762506 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in ID · M-6312
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1611 12TH AVE RD, Nampa, ID 83686
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Other Names 1

Doing Business AsAdvanced Specialty Care For Women

Other Identifiers 1

Medicaid1801834866ID

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Advanced Specialty Care For Women is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

10

Medicare enrollment records show 10 clinicians reassign Medicare billing to Advanced Specialty Care For Women, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 5 within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 3

Nurse Practitioner8
Family Practice1
Obstetrics/Gynecology1

Clinicians, nearest first (10)

Gary Gregerson, M.D.
Obstetrics/Gynecology
NPI 1801834866
1611 12TH AVE RD SUITE A
Nampa, ID 83686
(208) 468-9400
✔ PECOS✔ Accepts MedicareSame address
Devin Milliron, FNP
Nurse Practitioner
NPI 1073251989
1115 12TH AVE RD
Nampa, ID 83686
(084) 981-0802
✔ PECOS✔ Accepts Medicare0.3 mi
Jennifer Mimish, CNM, WHNP
Nurse Practitioner
NPI 1821485012
1301 S MILLSTREAM DR
Nampa, ID 83686
(208) 352-2290
✔ PECOS1.7 mi
Keri Johnson
Nurse Practitioner
NPI 1902256019
207 1ST ST S
Nampa, ID 83651
(208) 466-7869
✔ PECOS✔ Accepts Medicare2.3 mi
Cozette Koenig, FNP-C
Nurse Practitioner
NPI 1053285767
16111 N BRINSON ST # 110
Nampa, ID 83687
(208) 468-9400
✔ PECOS✔ Accepts Medicare4.7 mi
Rachael Knuteson, NP
Nurse Practitioner
NPI 1003409988
1948 S EAGLE RD
Meridian, ID 83642
(208) 322-7900
✔ PECOS✔ Accepts Medicare11 mi
Susan Sansom, CNP
Nurse Practitioner
NPI 1538611397
360 E MONTVUE DR STE 100
Meridian, ID 83642
(208) 855-2900
✔ PECOS✔ Accepts Medicare12 mi
Bethany Mello, NP-C
Nurse Practitioner
NPI 1033479696
951 E PLAZA DR STE 170
Eagle, ID 83616
(208) 939-3505
✔ PECOS✔ Accepts Medicare15 mi
Danielle Sutton, NP
Nurse Practitioner
NPI 1528427796
951 E PLAZA DR #170
Eagle, ID 83616
(208) 939-2505
✔ PECOS✔ Accepts Medicare15 mi
James Mccoy, MD
Family Practice
NPI 1790211092
450 E MAIN ST
Rexburg, ID 83440
(208) 359-6900
✔ PECOS✔ Accepts Medicare241 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA 2

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 13D0951207

Advanced Specialty Care For Women · Nampa, ID
Active · expires Nov 7, 2026
CLIA Number13D0951207
Laboratory TypePhysician Office
Certificate Effective DateNovember 8, 2024
Certificate Expiration DateNovember 7, 2026
Laboratory DirectorGary N. Gregerson
Laboratory Phone(208) 468-9400
Laboratory LocationAdvanced Specialty Care For Women16111 N Brinson St Ste #110, Nampa, ID 83687
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 13D2323368

Advanced Specialty Care · Nampa, ID
Active · expires May 5, 2027
CLIA Number13D2323368
Laboratory TypePhysician Office
Certificate Effective DateMay 6, 2025
Certificate Expiration DateMay 5, 2027
Laboratory DirectorGary N. Gregerson
Laboratory Phone(208) 331-4200
Laboratory LocationAdvanced Specialty Care215 E Hawaii Ave Ste 220, Nampa, ID 83686
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gary Gregerson, M.D., P.A.'s NPI number?

The NPI number for Gary Gregerson, M.D., P.A. is 1255762506. It was assigned to this organization in the NPPES registry on December 11, 2013. The provider is doing business as Advanced Specialty Care For Women.

Where is Gary Gregerson, M.D., P.A. located?

Gary Gregerson, M.D., P.A. is located at 1611 12th Ave Rd Suite A, Nampa, ID 83686. The listed phone number is (208) 468-9400.

What is Gary Gregerson, M.D., P.A.'s specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Gary Gregerson, M.D., P.A. enrolled in Medicare?

Yes. Gary Gregerson, M.D., P.A. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Gary Gregerson, M.D., P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 10 clinicians in 3 Medicare specialties reassign their Medicare billing to Gary Gregerson, M.D., P.A.. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Nurse Practitioner (8), Family Practice (1) and Obstetrics/Gynecology (1). Of these, 1 practice at this address and 5 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Gary Gregerson, M.D., P.A. hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does Gary Gregerson, M.D., P.A. accept?

Health plans from Moda Health Plan, Inc. list Gary Gregerson, M.D., P.A. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gary Gregerson, M.D., P.A. was last updated on August 24, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.