Dorathy Twitchell, PA-C - Medicare Physician Assistant in Thousand Oaks, CA

Dorathy Twitchell, PA-C is a medicare enrolled "Physician Assistant" in Thousand Oaks, California. This provider graduated from nursing school in 2025 and has 1 years of diverse experience with area of expertise as Physician Assistant. Their current practice location is 1001 Newbury Rd, Thousand Oaks, California. You can reach out to their office (for appointments etc.) via phone at (805) 379-2322.

Dorathy Twitchell is licensed to practice in California (license number ) and this provider also participates in the medicare program. This provider may accept medicare assignments (which means this provider may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and their NPI Number is 1417806514.

Contact Information

Dorathy Twitchell, PA-C
1001 Newbury Rd,
Thousand Oaks, CA 91320-6434
(805) 379-2322
Not Available

Map and Direction




Provider's Profile

Full NameDorathy Twitchell
Gender
SpecialityPhysician Assistant
Experience1 Years
Location1001 Newbury Rd, Thousand Oaks, California
Accepts Medicare AssignmentsMay be. This provider may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dorathy Twitchell graduated from nursing school in 2025
  NPI Data:
  • NPI Number: 1417806514
  • Provider Enumeration Date: 01/23/2026
  • Last Update Date: 06/08/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 5294208351
  • Enrollment ID: I20260622000975

Medical Identifiers

Medical identifiers for Dorathy Twitchell such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1417806514NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dorathy Twitchell allows following entities to bill medicare on their behalf.
Entity NameErik C Spayde MD Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1790717965
PECOS PAC ID: 8527061928
Enrollment ID: O20060823000609
Entity NameSt Charles Spine Institute
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1780377283
PECOS PAC ID: 5496036550
Enrollment ID: O20170103001487

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dorathy Twitchell is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dorathy Twitchell, PA-C
1001 Newbury Rd,
Thousand Oaks, CA 91320-6434

Ph: (805) 379-2322
Dorathy Twitchell, PA-C
1001 Newbury Rd,
Thousand Oaks, CA 91320-6434

Ph: (805) 379-2322

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.