Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

M. SHEILA DONNELLY M.D.
NPI 1942297528
Internal Medicine - Medical Oncology in Gardner, MA

Active since September 29, 2005PECOS Enrolled
242 GREEN ST, GARDNER, MA 01440(978) 630-6457(978) 630-6158 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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

NPI1942297528
Entity TypeIndividualFemale
Primary Taxonomy207RX0202X
Provider Legal NameM. SHEILA DONNELLYCredential: M.D.
Location Address242 GREEN STGardner, MA 01440-1336
Mailing Address242 Green StGardner, MA 01440-1336 · (978) 630-6457 · Fax (978) 630-6158
Fax(978) 630-6158
Sole ProprietorNo
Medical School CMSClvlnd Clinic Lerner College Of Med Of Case Wstn Rsv UniversityGraduated 1974
Enumeration DateSeptember 29, 2005
Last NPPES UpdateJuly 13, 2026
NPI 1942297528 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License Licensed in MA · 41136
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
242 GREEN ST, Gardner, MA 01440

Other Identifiers 1

Medicaid0119334MA

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.

PECOS PAC ID8426089590
PECOS Enrollment IDI20050829000436
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
278 services124 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
20 services13 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
16 services16 patients

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, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220095
Location242 Green StreetGardner, MA 01440 · Worcester County
Emergency services Birthing friendly

Umass Memorial Medical Center/University Campus

Acute Care Hospitals · Worcester, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220163
Location55 Lake Avenue NorthWorcester, MA 01655 · Worcester County
Emergency services Birthing friendly

Athol Memorial Hospital

Critical Access Hospitals · Athol, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number221303
Location2033 Main StreetAthol, MA 01331 · Worcester County
Emergency services

Physician 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.

New Patient
$177.36 typical visit price
range $58.86 – $177.36
Typical copayment $44.34 (range $14.71 – $44.34)
Most-billed visit code 99205
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

Capecitabine, oral, 500 mg J8521
Treatment-Treatment - Miscellaneous · category RX029N
2 suppliers11 claims440 services$0.68 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
2 suppliers11 claims11 services$11.45 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Registered Nurse
242 GREEN ST
GARDNER, MA 01440
Emergency Medicine (Emergency Medical Services)
242 GREEN ST
GARDNER, MA 01440
Pharmacist
242 GREEN ST
GARDNER, MA 01440
Dietitian, Registered
242 GREEN ST
GARDNER, MA 01440
Family Medicine
242 GREEN ST
GARDNER, MA 01440
Nurse Practitioner
242 GREEN ST
GARDNER, MA 01440
Emergency Medicine
242 GREEN ST
GARDNER, MA 01440
Pathology (Anatomic Pathology & Clinical Pathology)
242 GREEN ST
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.