Adventist Health Physicians Network

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

Legal business name

ADVENTIST HEALTH PHYSICIANS NETWORK

Practice address

1100 Trancas St Ste 250
Napa, CA 94558-2909

Phone

(707) 253-1135

NPI assigned

Apr 11, 2019

Last updated

Sep 8, 2025By the provider in NPPES

Organization subpart

No

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name

Arby Nahapetian

Title

President

Phone

(818) 409-8000

Specialties & licenses 3

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Networks

• BSC 65 PLUS INDIVIDUAL MAPDPlans: Blue Shield 65 Plus (HMO) (H0504-015-000, H0504); Blue Shield 65 Plus (HMO) (H0504-039-000, H0504); Blue Shield 65 Plus Plan 2 (HMO) (H0504-021-000, H0504); Blue Shield Inspire (HMO) (H0504-041-000, H0504); Blue Shield 65 Plus (HMO) (H0504-038-000, H0504); Blue Shield Inspire (HMO) (H0504-047-000, H0504); Blue Shield 65 Plus (HMO) (H0504-026-000, H0504); Blue Shield Advantage (HMO) (H0504-050-000, H0504); Blue Shield AdvantageOptimum Plan (HMO) (H5928-004-000, H5928); Blue Shield Inspire (HMO) (H0504-043-000, H0504)…

Practitioners 3

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Andrew K Chinnock, FNP

  • Nurse Practitioner
  • Petaluma, CA
  • NPI 1174844674
  NPD
• Tyler Yu-Tai Kang, M.D.

  • Hematology & Oncology Physician
  • Walnut Creek, CA
  • NPI 1164691820
  NPD
• Kiran Madhav Ubhayakar, M.D.

  • Critical Care Medicine (Internal Medicine) Physician
  • Calistoga, CA
  • NPI 1881838605

  Multi-Specialty

  NPD

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1554940800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757289600000",
    "number": "1982167300",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 888794",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900888794"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1100 TRANCAS ST STE 250",
            "city": "NAPA",
            "state": "CA",
            "postal_code": "945582909",
            "telephone_number": "707-253-1135"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "ADVENTIST HEALTH PHYSICIANS NETWORK",
        "organizational_subpart": "NO",
        "enumeration_date": "2019-04-11",
        "last_updated": "2025-09-08",
        "certification_date": "2025-09-08",
        "status": "A",
        "authorized_official_last_name": "NAHAPETIAN",
        "authorized_official_first_name": "ARBY",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "818-409-8000"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "171M00000X",
            "taxonomy_group": "",
            "desc": "Case Manager/Care Coordinator",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://esmd.officeally.io:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.2019.3",
            "affiliationName": "Bluemark LLC / Office Ally",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "CMS esMD eMDR",
            "address_1": "1100 Trancas St Ste 250",
            "city": "Napa",
            "state": "CA",
            "country_code": "US",
            "postal_code": "945582909",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Adventist Health California Medical Group, Inc. (St. Helena Neurology)
• Adventist Health Physicians Network
• Adventist Health Physicians Network
• Adventist Health Physicians Network
• Adventist Health Physicians Network (St. Helena Medical Specialties)
• Adventist Health Silverado Psychiatric Clinic
• Adventist St. Helena OB/GYN Clinic
• Elizabeth Ngoc Ha Agbuya, O.D.
• Aurora Aggelen
• Andrea Aguado Garcia

• Obstetrics & Gynecology Physician in Napa, CA
• Providers in Napa, CA by specialty
• Obstetrics & Gynecology Physician in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.