M. SHEILA DONNELLY M.D.
NPI 1942297528
Internal Medicine - Medical Oncology in Gardner, MA
About M. Sheila Donnelly M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
M. SHEILA DONNELLY M.D. (NPI 1942297528) is an individual medical oncology provider in Gardner, Massachusetts, licensed in Massachusetts (41136) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS, is affiliated with Heywood Hospital, and is a graduate of Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University (1974).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
M. Sheila Donnelly M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Heywood Hospital
Acute Care Hospitals · Gardner, MAUmass Memorial Medical Center/University Campus
Acute Care Hospitals · Worcester, MAAthol Memorial Hospital
Critical Access Hospitals · Athol, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 01440 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GARDNER, MA 01440
GARDNER, MA 01440
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is M. Donnelly's NPI number?
The NPI number for M. Donnelly is 1942297528. It was assigned to this individual provider in the NPPES registry on September 29, 2005.
Where is M. Donnelly located?
M. Donnelly practices at 242 Green St, Gardner, MA 01440. The listed phone number is (978) 630-6457.
What is M. Donnelly's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is M. Donnelly enrolled in Medicare?
Yes. M. Donnelly is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Is M. Donnelly affiliated with any hospitals?
According to CMS data, M. Donnelly is affiliated with Heywood Hospital, Umass Memorial Medical Center/University Campus and Athol Memorial Hospital.
When was this NPI record last updated?
The NPPES record for M. Donnelly was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 32 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.