ADVENTIST HEALTH PHYSICIANS NETWORK
NPI 1285185991
Internal Medicine in Ukiah, CA

Q: What is Adventist Health Physicians Network's NPI number?

The NPI number for Adventist Health Physicians Network is 1285185991. It was assigned to this organization in the NPPES registry on October 18, 2016.

Q: What is Adventist Health Physicians Network's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since October 18, 2016

260 HOSPITAL DR, SUITE 103, UKIAH, CA 95482(707) 463-7490 Get Directions Write a Review

NPPES record last updated: September 15, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 15, 2025, Dec 21, 2022, Jan 14, 2022 and 2 more (5 updates tracked since 2016).

On this page

About Adventist Health Physicians Network NPPES

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

ADVENTIST HEALTH PHYSICIANS NETWORK (NPI 1285185991) is a healthcare organization registered as an internal medicine in Ukiah, California and active in the NPI registry since October 2016. The organization lists Arby Nahapetian, President, as its authorized official.

NPPES Registry Identity

NPI1285185991

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameADVENTIST HEALTH PHYSICIANS NETWORK

Location Address260 HOSPITAL DR, SUITE 103Ukiah, CA 95482-4568

Mailing AddressPo Box 888794Los Angeles, CA 90088-8794

Phone(707) 463-7490

Organization SubpartNo

Authorized OfficialArby NahapetianPresident · (818) 409-8000

Enumeration DateOctober 18, 2016

Last NPPES UpdateSeptember 15, 20255 updates tracked since enumeration

NPPES CertifiedSeptember 15, 2025

✔ NPI 1285185991 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

260 HOSPITAL DR, Ukiah, CA 95482

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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

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

673

Medicare enrollment records show 673 clinicians reassign Medicare billing to Adventist Health Physicians Network, which bills Medicare for the services they deliver. Of these, 21 practice at this address and 30 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 52

Nurse Practitioner130

Diagnostic Radiology121

Family Practice65

Internal Medicine33

General Surgery31

Orthopedic Surgery30

Urology30

Obstetrics/Gynecology26

44 other specialties207

Nearest to this location (20)

See all 673

Holly Astin, MD

Family Practice

NPI 1245974302

260 HOSPITAL DR STE 209
Ukiah, CA 95482

(707) 463-7483

✔ PECOS✔ Accepts MedicareSame address

Charles Baugh, MD

Family Practice

NPI 1477133445

260 HOSPITAL DR STE 107
Ukiah, CA 95482

(707) 467-5278

✔ PECOS✔ Accepts MedicareSame address

Adrienne Carfi-Zavala, FNP

Nurse Practitioner

NPI 1457200677

260 HOSPITAL DR STE 209
Ukiah, CA 95482

(707) 463-7483

✔ PECOS✔ Accepts MedicareSame address

Cara Eberhardt, MD

Family Practice

NPI 1174151450

260 HOSPITAL DR
Ukiah, CA 95482

(707) 467-3123

✔ PECOS✔ Accepts MedicareSame address

Arlene Flores, DO

Family Practice

NPI 1750031670

260 HOSPITAL DR STE 204
Ukiah, CA 95482

(707) 467-4327

✔ PECOS✔ Accepts MedicareSame address

Sean Kelly, M.D.

Orthopedic Surgery

NPI 1679929871

260 HOSPITAL DR STE 107
Ukiah, CA 95482

(707) 467-5278

✔ PECOS✔ Accepts MedicareSame address

Tyler Laubach, DO

Family Practice

NPI 1285201186

260 HOSPITAL DR STE 103
Ukiah, CA 95482

(707) 463-7495

✔ PECOS✔ Accepts MedicareSame address

Jeremy Malin, NP

Nurse Practitioner

NPI 1134550809

260 HOSPITAL DR STE 209
Ukiah, CA 95482

(707) 463-7488

✔ PECOS✔ Accepts MedicareSame address

Emily Bender, M.D.

Hospitalist

NPI 1821594318

260 HOSPITAL DR STE 204
Ukiah, CA 95482

(707) 467-5220

✔ PECOS✔ Accepts MedicareSame address

Graham Chelius, M.D.

Hospitalist

NPI 1063459311

260 HOSPITAL DR STE 103
Ukiah, CA 95482

(707) 467-3123

✔ PECOS✔ Accepts MedicareSame address

Aphrael Dunston, FNP, RN

Nurse Practitioner

NPI 1477346575

260 HOSPITAL DR STE 209
Ukiah, CA 95482

(707) 463-7487

✔ PECOS✔ Accepts MedicareSame address

Evita Joseph, MD

Family Practice

NPI 1275161887

260 HOSPITAL DR STE 103
Ukiah, CA 95482

(707) 467-3123

✔ PECOS✔ Accepts MedicareSame address

Matthew Swain, D.O.

Family Practice

NPI 1417927120

260 HOSPITAL DR STE 103
Ukiah, CA 95482

(707) 467-3123

✔ PECOS✔ Accepts MedicareSame address

Michael Young, DO

Pain Management

NPI 1023174042

260 HOSPITAL DR SUITE 102
Ukiah, CA 95482

(707) 463-8028

✔ PECOS✔ Accepts MedicareSame address

Theron Chan, M.D.

Family Practice

NPI 1952385833

260 HOSPITAL DR SUITE 209
Ukiah, CA 95482

(707) 463-8000

✔ PECOSSame address

Lindsay Helvey, APRN, FNP-C

Nurse Practitioner

NPI 1134783475

260 HOSPITAL DR STE 204
Ukiah, CA 95482

(707) 467-4327

✔ PECOS✔ Accepts MedicareSame address

Frances Laughton, FNP

Nurse Practitioner

NPI 1013160811

260 HOSPITAL DR STE 209
Ukiah, CA 95482

(707) 463-8000

✔ PECOSSame address

Jon Portnoff, M.D.

Cardiovascular Disease (Cardiology)

NPI 1609874445

260 HOSPITAL DR SUITE 207
Ukiah, CA 95482

(707) 463-2400

✔ PECOS✔ Accepts MedicareSame address

Hengbing Wang, M.D.

Hematology/Oncology

NPI 1497940191

260 HOSPITAL DR SUITE 207
Ukiah, CA 95482

(707) 463-7627

✔ PECOS✔ Accepts MedicareSame address

Kathleen Persky, MD

General Surgery

NPI 1952309288

246 HOSPITAL DR
Ukiah, CA 95482

(707) 463-8011

✔ PECOS✔ Accepts MedicareSame address

See all 673 clinicians

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

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 Adventist Health Physicians Network's NPI number?

The NPI number for Adventist Health Physicians Network is 1285185991. It was assigned to this organization in the NPPES registry on October 18, 2016.

Where is Adventist Health Physicians Network located?

Adventist Health Physicians Network is located at 260 Hospital Dr Suite 103, Ukiah, CA 95482. The listed phone number is (707) 463-7490.

What is Adventist Health Physicians Network's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

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, 21 practice at this address and 30 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Adventist Health Physicians Network was last updated on September 15, 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.