Quick answers
- Which hospitals does Jonathan L. Allen work at?
- Medicare's official clinician data lists Jonathan L. Allen at 3 hospitals: Arrowhead Regional Medical Center, Redlands Community Hospital and Riverside University Health System-Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan L. Allen see patients?
- Medicare's clinician data lists 5 practice locations, including Redlands, CA, San Bernardino, CA and Moreno Valley, CA. Call before your visit to confirm the address.
- What is Jonathan L. Allen's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does Jonathan L. Allen accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan L. Allen 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 L. Allen?
- (909) 557-1600, as listed in official Medicare / NPI Registry data.
- What is Jonathan L. Allen's NPI number?
- 1023215357. 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 L. Allen works
Medicare's Facility Affiliation Data lists Jonathan L. Allen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Arrowhead Regional Medical CenterColton, CA · Acute Care Hospital · CCN 050245
- Redlands Community HospitalRedlands, CA · Acute Care Hospital · CCN 050272
- Riverside University Health System-Medical CenterMoreno Valley, CA · Acute Care Hospital · CCN 050292
Practice locations
Addresses where Jonathan L. Allen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1901 W Lugonia AveRedlands, CA 92374 (909) 557‑1600
- 2131 Elks Dr, 201 Arrowhead OrthopaedicsSan Bernardino, CA 92404 (909) 726‑6100
- 26520 Cactus AveMoreno Valley, CA 92555 (951) 486‑4000
- 3889 W Stetson Ave, 150 Arrowhead OrthopaedicsHemet, CA 92545 (951) 652‑1600
- 400 N Pepper Ave, ArrowheadColton, CA 92324 (909) 580‑3390
Group practices
Medicare enrollment lists Jonathan L. Allen as a member of these groups (CMS data updated 2026-10-02).
- San Bernardino Medical Orthopaedic Group Inc91 clinicians in the group
- De Anza Orthopedic Medical Group Inc18 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Redlands
Clinicians with the same Medicare primary specialty in Redlands, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1023215357 |
| 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