Quick answers
- Where does Gregory I. Wirth see patients?
- Medicare's clinician data lists 2 practice locations, including Big Sur, CA. Call before your visit to confirm the address.
- What is Gregory I. Wirth's specialty?
- Medicare lists Chiropractic as the primary specialty.
- Does Gregory I. Wirth accept Medicare assignment?
- Medicare's clinician data says Gregory I. Wirth may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Gregory I. Wirth?
- (831) 667-2181, as listed in official Medicare / NPI Registry data.
- What is Gregory I. Wirth's NPI number?
- 1811103484. 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 Gregory I. Wirth is enrolled with Medicare (CMS data updated 2026-10-02).
- 46896 Hwy 1Big Sur, CA 93920 (831) 667‑2181
- PO Box, Suite 310Big Sur, CA 93920
Specialties
- Chiropracticprimary
Other chiropractors in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | CH |
|---|---|
| Graduation year | 1980 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1811103484 |
| 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