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Family Practice

John M. Gray, DO

Works at hospitals in Salinas, CA · California

Summary

John M. Gray, DO (Family Practice) is listed by Medicare at 1 hospital in Salinas, CA. NPI 1407863038. 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 M. Gray, 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

Family PracticePrimary specialty
YesAccepts Medicare assignment
38Years since medical school (graduated 1988)
MaleGender (as listed)
Doctors on Duty Medical Group, IncGroup practice

Quick answers

Which hospitals does John M. Gray work at?
Medicare's official clinician data lists John M. Gray at 1 hospital: Salinas Valley Health Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John M. Gray see patients?
Medicare's clinician data lists 1 practice location in Salinas, CA. Call before your visit to confirm the address.
What is John M. Gray's specialty?
Medicare lists Family Practice as the primary specialty.
Does John M. Gray accept Medicare assignment?
Yes. Medicare's clinician data says John M. Gray 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 M. Gray?
(831) 422-7777, as listed in official Medicare / NPI Registry data.
What is John M. Gray's NPI number?
1407863038. 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 M. Gray works

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

Group practices

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

  • Doctors on Duty Medical Group, Inc64 clinicians in the group

Specialties

Find other Family Practice doctors in California →

Other family doctors in Salinas

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

All family doctors in Salinas →

Clinician information

CredentialDO
Graduation year1988
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1407863038
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