Quick answers
- Which hospitals does Jonathan Martinez work at?
- Medicare's official clinician data lists Jonathan Martinez at 1 hospital: San Antonio Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan Martinez see patients?
- Medicare's clinician data lists 1 practice location in Montclair, CA. Call before your visit to confirm the address.
- What is Jonathan Martinez's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Jonathan Martinez accept Medicare assignment?
- Medicare's clinician data says Jonathan Martinez may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Jonathan Martinez offer telehealth?
- Medicare's clinician data says Jonathan Martinez offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Jonathan Martinez?
- (909) 621-2562, as listed in official Medicare / NPI Registry data.
- What is Jonathan Martinez's NPI number?
- 1750491908. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan Martinez works
Medicare's Facility Affiliation Data lists Jonathan Martinez at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- San Antonio Regional HospitalUpland, CA · Acute Care Hospital · CCN 050099
Practice locations
Addresses where Jonathan Martinez is enrolled with Medicare (CMS data updated 2026-10-02).
- 4959 Palo Verde StMontclair, CA 91763 (909) 621‑2562
Specialties
- Physician Assistantprimary
Other physician assistants in Montclair
Clinicians with the same Medicare primary specialty in Montclair, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1750491908 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians