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Internal Medicine

Jeffrey J. Thomas, MD

Works at hospitals in Ridgecrest, CA · California

Summary

Jeffrey J. Thomas, MD (Internal Medicine) is listed by Medicare at 1 hospital in Ridgecrest, CA. NPI 1932337136. 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 Jeffrey J. Thomas, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
17Years since medical school (graduated 2009)
Tufts University School Of MedicineMedical school
MaleGender (as listed)
Ridgecrest Regional HospitalGroup practice (+5 more)

Quick answers

Which hospitals does Jeffrey J. Thomas work at?
Medicare's official clinician data lists Jeffrey J. Thomas at 1 hospital: Ridgecrest Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Jeffrey J. Thomas see patients?
Medicare's clinician data lists 10 practice locations, including Ridgecrest, CA, Phoenix, AZ and San Antonio, TX. Call before your visit to confirm the address.
What is Jeffrey J. Thomas's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Jeffrey J. Thomas accept Medicare assignment?
Yes. Medicare's clinician data says Jeffrey J. Thomas 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 Jeffrey J. Thomas?
(760) 499-3899, as listed in official Medicare / NPI Registry data.
What is Jeffrey J. Thomas's NPI number?
1932337136. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Jeffrey J. Thomas works

Medicare's Facility Affiliation Data lists Jeffrey J. Thomas 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 Jeffrey J. Thomas is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.

Group practices

Medicare enrollment lists Jeffrey J. Thomas as a member of these groups (CMS data updated 2026-10-02).

  • Ridgecrest Regional Hospital95 clinicians in the group
  • Geriatric Support Medical Group PC38 clinicians in the group
  • Geiss Med Nevada PC14 clinicians in the group
  • Senior Doc Idaho PC9 clinicians in the group
  • Senior Doc Oregon PC4 clinicians in the group
  • Senior Doc Arizona PC3 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Ridgecrest

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

All internal medicine doctors in Ridgecrest →

Clinician information

CredentialMD
Medical schoolTufts University School Of Medicine
Graduation year2009
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1932337136
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