1. Home
  2. Directory
  3. California
  4. Saint Helena
  5. Internal Medicine
  6. NPI Profile

ST. HELENA INTERNAL MEDICINE
NPI 1376840462
Internal Medicine in Saint Helena, CA

Active since February 25, 2011
999 ADAMS ST, SUITE 500, SAINT HELENA, CA 94574(707) 963-5294(707) 963-3271 Get Directions Write a Review

NPPES record last updated: February 25, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About St. Helena Internal Medicine NPPES

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

ST. HELENA INTERNAL MEDICINE (NPI 1376840462) is a healthcare organization registered as an internal medicine in Saint Helena, California and active in the NPI registry since February 2011. The organization lists Jeff Conklin, President, as its authorized official.

NPPES Registry Identity

NPI1376840462
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameADVENTIST HEALTH PHYSICIANS NETWORK
Location Address999 ADAMS ST, SUITE 500Saint Helena, CA 94574-1148
Mailing Address1001 Adams StSaint Helena, CA 94574-1107 · (707) 968-2865
Phone(707) 963-5294
Fax(707) 963-3271
Organization SubpartYes
Authorized OfficialJeff ConklinPresident · (916) 789-4209
Enumeration DateFebruary 25, 2011
✔ NPI 1376840462 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.
999 ADAMS ST, Saint Helena, CA 94574
Open in Google Maps ↗

Other Names 1

Other NameSt. Helena Internal Medicine

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company).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)

St. Helena Internal Medicine 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 St. Helena Internal Medicine, which bills Medicare for the services they deliver. Of these, 30 practice 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
Mila Nguyen, NP
Nurse Practitioner
NPI 1073385464
999 ADAMS ST STE 106
Saint Helena, CA 94574
(707) 963-4997
✔ PECOS✔ Accepts Medicare0.1 mi
Monica Divakaruni, MD
Cardiovascular Disease (Cardiology)
NPI 1205883972
999 ADAMS ST STE 106
Saint Helena, CA 94574
(707) 963-4997
✔ PECOS✔ Accepts Medicare0.1 mi
Sharon Phillips, NP
Nurse Practitioner
NPI 1356317739
1530 RAILROAD AVE
Saint Helena, CA 94574
(707) 963-5006
✔ PECOS✔ Accepts Medicare0.2 mi
Jessica Friend, APRN, NP-C
Nurse Practitioner
NPI 1447911029
821 SAINT HELENA HWY S
Saint Helena, CA 94574
(707) 967-7550
✔ PECOS✔ Accepts Medicare0.4 mi
Ryan Moore, MD
Orthopedic Surgery
NPI 1528266202
6 WOODLAND RD STE 202
Saint Helena, CA 94574
(707) 968-0670
✔ PECOS✔ Accepts Medicare0.8 mi
Matthew Cain, M.D.
Cardiac Electrophysiology
NPI 1912210931
6 WOODLAND RD STE 304
Saint Helena, CA 94574
(707) 963-7200
✔ PECOS✔ Accepts Medicare0.8 mi
Leonardo Clavijo, M.D.
Interventional Cardiology
NPI 1225088537
6 WOODLAND RD STE 304
Saint Helena, CA 94574
(707) 963-7200
✔ PECOS✔ Accepts Medicare0.8 mi
Susan Eisenberg, M.D.
Cardiac Electrophysiology
NPI 1134226020
6 WOODLAND RD STE 304
Saint Helena, CA 94574
(707) 963-7200
✔ PECOS✔ Accepts Medicare0.8 mi
Aaron Kime, M.D.
Thoracic Surgery
NPI 1841635869
6 WOODLAND RD STE 304
Saint Helena, CA 94574
(707) 963-7200
✔ PECOS✔ Accepts Medicare0.8 mi
Rachael Vasquez, AG-ACNP
Nurse Practitioner
NPI 1164122230
6 WOODLAND RD STE 304
Saint Helena, CA 94574
(707) 963-7200
✔ PECOS✔ Accepts Medicare0.8 mi
Tegpal Atwal
Gastroenterology
NPI 1275751869
6 WOODLAND RD STE 303
Saint Helena, CA 94574
(707) 963-0267
✔ PECOS✔ Accepts Medicare0.8 mi
Juan Vasquez, MD
General Surgery
NPI 1477593713
6 WOODLAND RD STE 101
Saint Helena, CA 94574
(707) 963-6111
✔ PECOS✔ Accepts Medicare1.0 mi
Swaminadhan Gnanashanmugam, M.D.
Thoracic Surgery
NPI 1073765517
10 WOODLAND RD
Saint Helena, CA 94574
(650) 804-8093
✔ PECOS✔ Accepts Medicare2.4 mi
Ethan Schram, M.D.
Hematology/Oncology
NPI 1659320703
10 WOODLAND RD MARTIN-O'NEIL CANCER CENTER
Saint Helena, CA 94574
(707) 967-5721
✔ PECOS✔ Accepts Medicare2.4 mi
Lily Shamsnia, MD
Obstetrics/Gynecology
NPI 1598080772
10 WOODLAND RD
Saint Helena, CA 94574
(707) 967-7530
✔ PECOS✔ Accepts Medicare2.4 mi
Stephen Banks, MD
Radiation Oncology
NPI 1770680852
10 WOODLAND RD
Saint Helena, CA 94574
(707) 967-5721
✔ PECOS✔ Accepts Medicare2.5 mi
Amizetta Clark, M.D.
Psychiatry
NPI 1841646353
10 WOODLAND RD
Saint Helena, CA 94574
(707) 963-3611
✔ PECOS✔ Accepts Medicare2.5 mi
William Duge, MD
Diagnostic Radiology
NPI 1275535700
10 WOODLAND RD
Saint Helena, CA 94574
(707) 261-7821
✔ PECOS✔ Accepts Medicare2.5 mi
Gansevoort Dunnington, M.D.
Cardiac Surgery
NPI 1336335140
10 WOODLAND RD
Saint Helena, CA 94574
(707) 963-6445
✔ PECOS✔ Accepts Medicare2.5 mi
Alicia Florez, FNP-BC
Nurse Practitioner
NPI 1053727008
10 WOODLAND RD
Saint Helena, CA 94574
(707) 963-2002
✔ PECOS✔ Accepts Medicare2.5 mi
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 1376840462. It was assigned to this organization in the NPPES registry on February 25, 2011. The provider is also known as St. Helena Internal Medicine.

Where is Adventist Health Physicians Network located?

Adventist Health Physicians Network is located at 999 Adams St Suite 500, Saint Helena, CA 94574. The listed phone number is (707) 963-5294.

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

What insurance does Adventist Health Physicians Network accept?

Health plans from Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Adventist Health Physicians Network 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 Adventist Health Physicians Network was last updated on February 25, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.