Quick answers
- Which hospitals does Nicole G. Williams work at?
- Medicare's official clinician data lists Nicole G. Williams at 4 hospitals: Arrowhead Regional Medical Center, PIH Health Downey Hospital, PIH Health Hospital-Whittier and Saint Agnes Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Nicole G. Williams see patients?
- Medicare's clinician data lists 6 practice locations, including Whittier, CA, Los Angeles, CA and Fresno, CA. Call before your visit to confirm the address.
- What is Nicole G. Williams's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does Nicole G. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says Nicole G. Williams 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 Nicole G. Williams offer telehealth?
- Medicare's clinician data says Nicole G. Williams offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Nicole G. Williams?
- (562) 967-2840, as listed in official Medicare / NPI Registry data.
- What is Nicole G. Williams's NPI number?
- 1083936660. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Nicole G. Williams works
Medicare's Facility Affiliation Data lists Nicole G. Williams 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
- PIH Health Downey HospitalDowney, CA · Acute Care Hospital · CCN 050393
- PIH Health Hospital-WhittierWhittier, CA · Acute Care Hospital · CCN 050169
- Saint Agnes Medical CenterFresno, CA · Acute Care Hospital · CCN 050093
Practice locations
Addresses where Nicole G. Williams is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 12291 Washington Blvd, Suite 300Whittier, CA 90606 (562) 967‑2840
- 1245 Wilshire BlvdLos Angeles, CA 90017 (213) 482‑2770
- 1303 E Herndon AveFresno, CA 93720 (559) 450‑3301
- 400 N Pepper AveColton, CA 92324 (909) 580‑1000
- 726 4th StMarysville, CA 95901 (530) 740‑1900
Group practices
Medicare enrollment lists Nicole G. Williams as a member of these groups (CMS data updated 2026-10-02).
- PIH Health Physicians622 clinicians in the group
- Cep America - Psychiatry PC93 clinicians in the group
- Rideout Memorial Hospital87 clinicians in the group
- Saint Agnes Medical Center58 clinicians in the group
- Mental Wellness Partners6 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Whittier
Clinicians with the same Medicare primary specialty in Whittier, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1083936660 |
| 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