Mrs Karen P Mckay, PA - Medicare Physician Assistant in Marshfield, MA

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Mrs Karen P Mckay, PA is a medicare enrolled "Physician Assistant" in Marshfield, Massachusetts. Her current practice location is 435 Furnace St, Marshfield, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (781) 837-7200.

Mrs Karen P Mckay is licensed to practice in Massachusetts (license number 177) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1396736765.

Contact Information

Mrs Karen P Mckay, PA
435 Furnace St,
Marshfield, MA 02050-2332
(781) 837-7200
(781) 837-7255

Map and Direction




Provider's Profile

Full NameMrs Karen P Mckay
GenderFemale
SpecialityPhysician Assistant
Location435 Furnace St, Marshfield, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1396736765
  • Provider Enumeration Date: 11/03/2005
  • Last Update Date: 08/05/2026
  Medicare PECOS Information:
  • PECOS PAC ID: 0143493304
  • Enrollment ID: I20111103000248

Medical Identifiers

Medical identifiers for Mrs Karen P Mckay such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396736765NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 177 (Massachusetts)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. Mrs Karen P Mckay allows following entities to bill medicare on her behalf.
Entity NameAtrius Health Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871639914
PECOS PAC ID: 4789588641
Enrollment ID: O20031121000582
Entity NameHealthcare South PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1396726006
PECOS PAC ID: 0941273262
Enrollment ID: O20040816000712
Entity NameCarewell Urgent Care Centers of Ma, PC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740543214
PECOS PAC ID: 7618124470
Enrollment ID: O20120829000745
Entity NameUrgent Care Centers of Central Massachusetts LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497286280
PECOS PAC ID: 1557639366
Enrollment ID: O20170620003058

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. Mrs Karen P Mckay 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
Mrs Karen P Mckay, PA
302 Weymouth St Ste 202,
Rockland, MA 02370-1172

Ph: (781) 803-2786		Mrs Karen P Mckay, PA
435 Furnace St,
Marshfield, MA 02050-2332

Ph: (781) 837-7200

Reviews and Comments


Physician Assistant Nurses in Marshfield, MA

Mark Steven Farnum, PAC
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 50 Tupelo Rd, Marshfield, MA 02050
Phone: 781-837-9030    

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.