Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

General Practice

John D. Andrew, MD

Works at hospitals in Greenbrae, CA · Novato, CA · California

Summary

John D. Andrew, MD (General Practice) is listed by Medicare at 2 hospitals in Greenbrae, CA and Novato, CA. NPI 1841220209. 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 D. Andrew, 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

General PracticePrimary specialty
YesAccepts Medicare assignment
52Years since medical school (graduated 1974)
MaleGender (as listed)

Quick answers

Which hospitals does John D. Andrew work at?
Medicare's official clinician data lists John D. Andrew at 2 hospitals: Marinhealth Medical Center and Novato Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John D. Andrew see patients?
Medicare's clinician data lists 1 practice location in Greenbrae, CA. Call before your visit to confirm the address.
What is John D. Andrew's specialty?
Medicare lists General Practice as the primary specialty.
Does John D. Andrew accept Medicare assignment?
Yes. Medicare's clinician data says John D. Andrew 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 D. Andrew?
(415) 925-1523, as listed in official Medicare / NPI Registry data.
What is John D. Andrew's NPI number?
1841220209. 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 D. Andrew works

Medicare's Facility Affiliation Data lists John D. Andrew 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 D. Andrew is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other General Practice doctors in California →

Other general practitioners in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All general practitioners in California →

Clinician information

CredentialMD
Graduation year1974
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1841220209
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