Caroline M Keyser, PA - Medicare Physician Assistant in Winchester, VA

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Caroline M Keyser, PA is a medicare enrolled "Physician Assistant" in Winchester, Virginia. She graduated from nursing school in 2019 and has 7 years of diverse experience with area of expertise as Physician Assistant. She is a member of the group practice Winchester Medical Center and her current practice location is 400 Campus Blvd Ste 210, Winchester, Virginia. You can reach out to her office (for appointments etc.) via phone at (540) 536-3470.

Caroline M Keyser is licensed to practice in Virginia (license number 0110-006606) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1609338078.

Contact Information

Caroline M Keyser, PA
400 Campus Blvd Ste 210,
Winchester, VA 22601-6906
(540) 536-3470
(540) 536-3471

Map and Direction




Provider's Profile

Full NameCaroline M Keyser
GenderFemale
SpecialityPhysician Assistant
Experience7 Years
Location400 Campus Blvd Ste 210, Winchester, Virginia
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Caroline M Keyser graduated from nursing school in 2019
  NPI Data:
  • NPI Number: 1609338078
  • Provider Enumeration Date: 04/03/2019
  • Last Update Date: 04/24/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3476886946
  • Enrollment ID: I20190615000226

Medical Identifiers

Medical identifiers for Caroline M Keyser such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1609338078NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 0110-006606 (Virginia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Winchester Medical CenterWinchester, VAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Winchester Medical Center0244134021313

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. Caroline M Keyser allows following entities to bill medicare on her behalf.
Entity NameWinchester Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679711261
PECOS PAC ID: 0244134021
Enrollment ID: O20031124000061
Entity NameShenandoah Memorial Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952417735
PECOS PAC ID: 2466360375
Enrollment ID: O20040115001156
Entity NameWarren Memorial Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164442281
PECOS PAC ID: 2365330347
Enrollment ID: O20040310000516
Entity NameValley Physician Enterprise Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538316203
PECOS PAC ID: 9931268091
Enrollment ID: O20081104000278
Entity NameWinchester Medical Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487907341
PECOS PAC ID: 7214181585
Enrollment ID: O20130214000243

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. Caroline M Keyser 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
Caroline M Keyser, PA
220 Campus Blvd Ste 210,
Winchester, VA 22601-2889

Ph: (540) 536-5100		Caroline M Keyser, PA
400 Campus Blvd Ste 210,
Winchester, VA 22601-6906

Ph: (540) 536-3470

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.