Quick answers
- Where does Jonathan Caldwell see patients?
- Medicare's clinician data lists 2 practice locations, including Patterson, CA and Turlock, CA. Call before your visit to confirm the address.
- What is Jonathan Caldwell's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does Jonathan Caldwell accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan Caldwell 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 Jonathan Caldwell?
- (209) 722-4842, as listed in official Medicare / NPI Registry data.
- What is Jonathan Caldwell's NPI number?
- 1134160674. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Jonathan Caldwell is enrolled with Medicare (CMS data updated 2026-10-02).
- 200 C StPatterson, CA 95363 (209) 722‑4842
- 2240 W Monte Vista AveTurlock, CA 95382 (209) 722‑4842
Group practices
Medicare enrollment lists Jonathan Caldwell as a member of this group (CMS data updated 2026-10-02).
- Golden Valley Health Centers113 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134160674 |
| 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
- 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