ADVENTIST HEALTH PHYSICIANS NETWORK
NPI 1508156423
Obstetrics & Gynecology in Saint Helena, CA
About Adventist Health Physicians Network NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ADVENTIST HEALTH PHYSICIANS NETWORK (NPI 1508156423) is a healthcare organization registered as an obstetrics & gynecology in Saint Helena, California and active in the NPI registry since April 2011. The organization holds a CLIA Waiver certificate valid through April 6, 2027 and lists Arby Nahapetian, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Adventist Health Physicians Network is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
673Medicare enrollment records show 673 clinicians reassign Medicare billing to Adventist Health Physicians Network, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 30 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 52
Nearest to this location (20)
See all 673Saint Helena, CA 94574
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
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 05D2321634
Adventist Health Physician Network · Saint Helena, CAFrequently 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 Adventist Health Physicians Network's NPI number?
The NPI number for Adventist Health Physicians Network is 1508156423. It was assigned to this organization in the NPPES registry on April 12, 2011.
Where is Adventist Health Physicians Network located?
Adventist Health Physicians Network is located at 821 Saint Helena Hwy S, Saint Helena, CA 94574. The listed phone number is (707) 967-7550.
What is Adventist Health Physicians Network's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Adventist Health Physicians Network enrolled in Medicare?
Yes. Adventist Health Physicians Network is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Adventist Health Physicians Network?
According to the CMS Revalidation Reassignment List (October 2026 release), 673 clinicians in 52 Medicare specialties reassign their Medicare billing to Adventist Health Physicians Network. 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 (130), Diagnostic Radiology (121) and Family Practice (65). Of these, 1 practice at this address and 30 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Adventist Health Physicians Network hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 05D2321634) is associated with this NPI, valid through April 6, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Adventist Health Physicians Network was last updated on September 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.
# Adventist Health Physicians Network · NPI 1508156423
Obstetrics & Gynecology organization in Saint Helena, California. Organization record, active in the CMS NPPES registry since April 12, 2011.
## Identity
- **NPI:** 1508156423 (Entity type: Organization)
- **Enumerated:** April 12, 2011
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **Organization subpart:** No
- **Authorized official:** Arby Nahapetian, PRESIDENT
## Practice location
- **Address:** 821 SAINT HELENA HWY S, Saint Helena, CA 94574-2266
- **Phone:** (707) 967-7550
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 673 clinicians in 52 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (130), Diagnostic Radiology (121), Family Practice (65); 1 practice at this address and 30 within 10 miles; [full list](https://npiprofile.com/npi/1508156423/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 12, 2025
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1508156423) · Data from the CMS NPPES public registry.