Quick answers
- Does Wilian Grijalva accept Medicare assignment?
- Yes. Medicare's clinician data says Wilian Grijalva accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Wilian Grijalva's NPI number?
- 1831872357. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Wilian Grijalva is enrolled with Medicare (CMS data updated October 2, 2026).
- 27403 Ynez Rd, Suite 108Temecula, CA 92591 (951) 750‑7888
- 3900 5th Ave, Suite 110San Diego, CA 92103 (858) 554‑1212
Group practices
Medicare enrollment lists Wilian Grijalva as a member of these groups (CMS data updated October 2, 2026).
- Monica Perlman MD Inc364 clinicians in the group
- Olive Tree Nursing Corporation5 clinicians in the group
- Jeremy Gomer MD Mobile Providers4 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Temecula
Clinicians with the same Medicare primary specialty in Temecula, CA — not a recommendation.
Other clinicians in Monica Perlman MD Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2023 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1831872357 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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