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Hospitalist

John A. Vidrih, MD

Works at hospitals in Clearlake, CA · Willits, CA · Saint Helena, CA … · California, Indiana

Summary

John A. Vidrih, MD (Hospitalist) is listed by Medicare at 5 hospitals in Clearlake, CA, Willits, CA and Saint Helena, CA and other places. NPI 1063482842. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John A. Vidrih, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

HospitalistPrimary specialty
YesAccepts Medicare assignment
30Years since medical school (graduated 1996)
Medical College Of WisconsinMedical school
MaleGender (as listed)
Galen Inpatient Physicians PCGroup practice

Quick answers

Which hospitals does John A. Vidrih work at?
Medicare's official clinician data lists John A. Vidrih at 5 hospitals: Adventist Health Clearlake, Adventist Health Howard Memorial, Adventist Health St Helena, Adventist Health Ukiah Valley and Union Hospital Inc. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John A. Vidrih see patients?
Medicare's clinician data lists 2 practice locations, including Greenbrae, CA and Terre Haute, IN. Call before your visit to confirm the address.
What is John A. Vidrih's specialty?
Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
Does John A. Vidrih accept Medicare assignment?
Yes. Medicare's clinician data says John A. Vidrih accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for John A. Vidrih?
(415) 925-7000, as listed in official Medicare / NPI Registry data.
What is John A. Vidrih's NPI number?
1063482842. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John A. Vidrih works

Medicare's Facility Affiliation Data lists John A. Vidrih at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where John A. Vidrih is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists John A. Vidrih as a member of this group (CMS data updated 2026-10-02).

  • Galen Inpatient Physicians PC1,077 clinicians in the group

Specialties

Find other Hospitalist doctors in California →

Other hospitalists in Greenbrae

Clinicians with the same Medicare primary specialty in Greenbrae, CA — not a recommendation.

All hospitalists in Greenbrae →

Clinician information

CredentialMD
Medical schoolMedical College Of Wisconsin
Graduation year1996
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1063482842
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians