Quick answers
- Where does Giovanni Villegas see patients?
- Medicare's clinician data lists 2 practice locations, including Mission Viejo, CA and Riverside, CA. Call before your visit to confirm the address.
- What is Giovanni Villegas's specialty?
- Medicare lists Psychiatry as the primary specialty.
- Does Giovanni Villegas accept Medicare assignment?
- Yes. Medicare's clinician data says Giovanni Villegas 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 Giovanni Villegas?
- (949) 900-4580, as listed in official Medicare / NPI Registry data.
- What is Giovanni Villegas's NPI number?
- 1629607908. 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 Giovanni Villegas is enrolled with Medicare (CMS data updated 2026-10-02).
- 23228 MaderoMission Viejo, CA 92691 (949) 900‑4580
- 6833 Indiana Ave, Suite 101Riverside, CA 92506 (657) 346‑6319
Group practices
Medicare enrollment lists Giovanni Villegas as a member of this group (CMS data updated 2026-10-02).
- Nebula Health, LLC20 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Mission Viejo
Clinicians with the same Medicare primary specialty in Mission Viejo, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629607908 |
| 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 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