NPPES file of Aug 9, 2026

Adventist Health Physicians Network in Napa, CA

This location of Adventist Health Physicians Network bills under NPI 1982167300, an organization record issued on Apr 11, 2019 with the primary taxonomy Obstetrics & Gynecology Physician. It is one of 273 NPIs registered under this name and one of 5 in Napa; each clinician who sees you there has their own NPI and license.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Organization recordNPPES, Aug 2026
1982167300
Legal name
Adventist Health Physicians Network
Entity
Type 2 · organization
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
Practice location
1100 TRANCAS ST STE 250, Napa, CA 94558
Phone
707-253-1135
Mailing address
Los Angeles, CA
Enumerated
Apr 11, 2019
Record updated
Sep 8, 2025
Authorized official
President (title as filed)
Public record from the NPPES NPI Registry (open it on CMS). An NPI identifies who bills; it is not a facility license.

The other 4 Napa NPIs

  1. Adventist Health Physicians Network935 TRANCAS ST 4B · issued Feb 26, 20111467759415
  2. Adventist Health Physicians Network3230 BEARD RD STE 2 · issued Aug 15, 20121922356484
  3. Adventist Health Physicians Network3273 CLAREMONT WAY SUITE 201 · issued May 9, 20141083025209
  4. Adventist Health Physicians Network1100 TRANCAS ST STE 240 · issued Aug 10, 20221306574116

6 clinicians CMS lists with Adventist Health Physicians Network in Napa

  1. Andrew Chinnock, FNPNurse Practitioner1174844674
  2. Maia Eng, MDCardiovascular Disease Physician1043604515
  3. Michael Novak, MDFamily Medicine Physician1972501179
  4. Miriam Tapia, DNP, FNP-C, PHNFamily Nurse Practitioner1285656165
  5. Kiran Ubhayakar, MDCritical Care Medicine (Internal Medicine) Physician1881838605
  6. Ari Umutyan, MDMedical Oncology Physician1275516171

Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.

All 273 Adventist Health Physicians Network NPIs

Every location registered under this name, in 58 cities.

See every location

Checking an organization

  1. Confirm the business with the California secretary of state.
  2. Check the HHS-OIG exclusion list for the organization.
  3. Verify each clinician on their own record and the state license search.

All taxonomies on this record

  • 171M00000X Case Manager/Care Coordinator
  • 207R00000X Internal Medicine Physician
  • 207V00000X Obstetrics & Gynecology Physician

Common questions

Is an organization NPI a license?

No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.

Which Napa NPI should I use?

Ask the office which NPI it bills under; all 5 Napa NPIs are registered under the same name.

Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.