Greylock Medical Clinic - Medicare Primary Care in Lanesborough, MA

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Greylock Medical Clinic is a medicare enrolled primary clinic (Physician Assistant - Medical) in Lanesborough, Massachusetts. The current practice location for Greylock Medical Clinic is 20 Williamstown Rd Ste 4, Lanesborough, Massachusetts. For appointments, you can reach them via phone at (413) 445-6800. The mailing address for Greylock Medical Clinic is 20 Williamstown Rd Ste 4, Lanesborough, Massachusetts and phone number is (413) 445-6800.

Greylock Medical Clinic is licensed to practice in Massachusetts (license number 1520). The clinic also participates in the medicare program and its NPI number is 1972853604. This medical practice accepts medicare insurance (which means this clinic accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance). However, please confirm if they accept your insurance at (413) 445-6800.

Contact Information

Greylock Medical Clinic
20 Williamstown Rd Ste 4
Lanesborough
MA 01237-9548
(413) 445-6800
(413) 707-4959

Map and Direction


Primary Care Clinic Profile

Full NameGreylock Medical Clinic
SpecialityPhysician Assistant
Location20 Williamstown Rd Ste 4, Lanesborough, Massachusetts
Authorized Official Name and PositionJeffrey J Kellogg (PRESIDENT)
Authorized Official Contact4134456800
Accepts Medicare InsuranceYes. This clinic participates in medicare program and accept medicare insurance.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Greylock Medical Clinic
20 Williamstown Rd Ste 4
Lanesborough
MA 01237-9548

Ph: (413) 445-6800		Greylock Medical Clinic
20 Williamstown Rd Ste 4
Lanesborough
MA 01237-9548

Ph: (413) 445-6800

NPI Details:

NPI Number1972853604
Provider Enumeration Date09/10/2012
Last Update Date08/07/2023

Medicare PECOS Information:

Medicare PECOS PAC ID3274785605
Medicare Enrollment IDO20121212000236

Medical Identifiers

Medical identifiers for Greylock Medical Clinic such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972853604NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 156843 (Massachusetts)Secondary
363AM0700XPhysician Assistant - Medical 1520 (Massachusetts)Primary

Reviews and Comments


Physician Assistant in Lanesborough, MA


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.