Quick answers
- Where does Robert M. Theaker see patients?
- Medicare's clinician data lists 1 practice location in Hollister, CA. Call before your visit to confirm the address.
- What is Robert M. Theaker's specialty?
- Medicare lists Optometry as the primary specialty.
- Does Robert M. Theaker accept Medicare assignment?
- Yes. Medicare's clinician data says Robert M. Theaker 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 Robert M. Theaker?
- (831) 637-5536, as listed in official Medicare / NPI Registry data.
- What is Robert M. Theaker's NPI number?
- 1053321984. 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 Robert M. Theaker is enrolled with Medicare (CMS data updated 2026-10-02).
- 365 6th StHollister, CA 95023 (831) 637‑5536
Group practices
Medicare enrollment lists Robert M. Theaker as a member of this group (CMS data updated 2026-10-02).
- Robert M Theaker O D An Optometric Corporation2 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Hollister
Clinicians with the same Medicare primary specialty in Hollister, CA — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Medical school | University Of California - School Of Optometry |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1053321984 |
| 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