Quick answers
- Which hospitals does William Gillespie work at?
- Medicare's official clinician data lists William Gillespie at 4 hospitals: L A Downtown Medical Center, Los Angeles Community Hospital, San Gabriel Valley Medical Center and Southern California Hospital at Hollywood. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William Gillespie see patients?
- Medicare's clinician data lists 1 practice location in Glendora, CA. Call before your visit to confirm the address.
- What is William Gillespie's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does William Gillespie accept Medicare assignment?
- Yes. Medicare's clinician data says William Gillespie 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.
- Does William Gillespie offer telehealth?
- Medicare's clinician data says William Gillespie offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for William Gillespie?
- (626) 914-1980, as listed in official Medicare / NPI Registry data.
- What is William Gillespie's NPI number?
- 1538238118. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William Gillespie works
Medicare's Facility Affiliation Data lists William Gillespie at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- L A Downtown Medical CenterLos Angeles, CA · Acute Care Hospital · CCN 050763
- Los Angeles Community HospitalLos Angeles, CA · Acute Care Hospital · CCN 050663
- San Gabriel Valley Medical CenterSan Gabriel, CA · Acute Care Hospital · CCN 050132
- Southern California Hospital at HollywoodHollywood, CA · Acute Care Hospital · CCN 050135
Practice locations
Addresses where William Gillespie is enrolled with Medicare (CMS data updated 2026-10-02).
- 510 S Grand Ave, Suite 200Glendora, CA 91741 (626) 914‑1980
Group practices
Medicare enrollment lists William Gillespie as a member of this group (CMS data updated 2026-10-02).
- William Gillespie and Associates Inc16 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1993 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1538238118 |
| 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