Quick answers
- Which hospitals does Jack W. Griffith Iii work at?
- Medicare's official clinician data lists Jack W. Griffith Iii at 1 hospital: San Antonio Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jack W. Griffith Iii see patients?
- Medicare's clinician data lists 2 practice locations, including Rancho Cucamonga, CA. Call before your visit to confirm the address.
- What is Jack W. Griffith Iii's specialty?
- Medicare lists Dermatology as the primary specialty.
- Does Jack W. Griffith Iii accept Medicare assignment?
- Yes. Medicare's clinician data says Jack W. Griffith Iii 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 Jack W. Griffith Iii?
- (909) 948-8888, as listed in official Medicare / NPI Registry data.
- What is Jack W. Griffith Iii's NPI number?
- 1407884315. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jack W. Griffith Iii works
Medicare's Facility Affiliation Data lists Jack W. Griffith Iii 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 Jack W. Griffith Iii is enrolled with Medicare (CMS data updated 2026-10-02).
- 7365 Carnelian StRancho Cucamonga, CA 91730
- 8273 White Oak AveRancho Cucamonga, CA 91730 (909) 948‑8888
Specialties
- Dermatologyprimary
Other dermatologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2004 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1407884315 |
| 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