Quick answers
- Which hospitals does Gregory L. Simpson work at?
- Medicare's official clinician data lists Gregory L. Simpson at 1 hospital: Community Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory L. Simpson see patients?
- Medicare's clinician data lists 2 practice locations, including Fresno, CA and Visalia, CA. Call before your visit to confirm the address.
- What is Gregory L. Simpson's specialty?
- Medicare lists Dermatology as the primary specialty, and also Internal Medicine.
- Does Gregory L. Simpson accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory L. Simpson 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 Gregory L. Simpson?
- (559) 320-0580, as listed in official Medicare / NPI Registry data.
- What is Gregory L. Simpson's NPI number?
- 1740488238. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory L. Simpson works
Medicare's Facility Affiliation Data lists Gregory L. Simpson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Community Regional Medical CenterFresno, CA · Acute Care Hospital · CCN 050060
Practice locations
Addresses where Gregory L. Simpson is enrolled with Medicare (CMS data updated 2026-10-02).
- 2210 E Illinois Ave, Suite 401Fresno, CA 93701 (559) 320‑0580
- 501 N Bride StVisalia, CA 93291 (559) 734‑1939
Group practices
Medicare enrollment lists Gregory L. Simpson as a member of these groups (CMS data updated 2026-10-02).
- Central California Faculty Medical Group Inc265 clinicians in the group
- Family Healthcare Network93 clinicians in the group
Specialties
- Dermatologyprimary
- Internal Medicinealso
Other dermatologists in Fresno
Clinicians with the same Medicare primary specialty in Fresno, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Tennessee, Hsc, College Of Medicine |
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1740488238 |
| 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