Quick answers
- Where does Dorathy Twitchell see patients?
- Medicare's clinician data lists 1 practice location in Thousand Oaks, CA. Call before your visit to confirm the address.
- What is Dorathy Twitchell's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Dorathy Twitchell accept Medicare assignment?
- Yes. Medicare's clinician data says Dorathy Twitchell 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 Dorathy Twitchell?
- (805) 379-2322, as listed in official Medicare / NPI Registry data.
- What is Dorathy Twitchell's NPI number?
- 1417806514. 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 Dorathy Twitchell is enrolled with Medicare (CMS data updated 2026-10-02).
- 1001 Newbury RdThousand Oaks, CA 91320 (805) 379‑2322
Group practices
Medicare enrollment lists Dorathy Twitchell as a member of these groups (CMS data updated 2026-10-02).
- St Charles Spine Institute8 clinicians in the group
- Erik C Spayde MD Inc5 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Thousand Oaks
Clinicians with the same Medicare primary specialty in Thousand Oaks, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2025 |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1417806514 |
| 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