M. Sheila Donnelly, M.D.

Primary specialty

Medical Oncology PhysicianTaxonomy code 207RX0202X

License

41136 Issued in MA

Practice address

242 Green St
Gardner, MA 01440-1336

Phone

(978) 630-6457

Fax

(978) 630-6158

NPI assigned

Sep 29, 2005

Sex

Female

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in MA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Hematology/Oncology

Education

Clvlnd Clinic Lerner College of Med of Case WSTN RSV University, 1974

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Henry Heywood Memorial HospitalGroup PAC ID 1658262605, 116 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Heywood Hospital - Hospital, Gardner, MA, CCN 220095
• Athol Memorial Hospital Hospital, Athol, MA, CCN 221303
• Umass Memorial Medical Center/University Campus Hospital, Worcester, MA, CCN 220163

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Henry Heywood Memorial Hospital

  • General Acute Care Hospital
  • Gardner, MA
  • NPI 1205823879
  Medicare reassignment Care Compare group NPD
• Athol Memorial Hospital Incorporated

  • Critical Access Hospital
  • Athol, MA
  • NPI 1336120047
  Medicare reassignment NPD
• Henry Heywood Memorial Hospital

  • Psychiatric Hospital Unit
  • Gardner, MA
  • NPI 1457685299
  NPD
• Henry Heywood Memorial Hospital

  • Emergency Medical Services (Emergency Medicine) Physician
  • Gardner, MA
  • NPI 1013529502
  NPD (past)
• Heywood Medical Group Inc.

  • General Practice Physician
  • Gardner, MA
  • NPI 1699762286
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Athol Memorial Hospital Incorporated

  • Critical Access Hospital
  • Athol, MA
  • NPI 1336120047
  Care Compare affiliation
• Henry Heywood Memorial Hospital

  • General Acute Care Hospital
  • Gardner, MA
  • NPI 1205823879
  Care Compare affiliation
• Heywood Medical Group Inc.

  • General Practice Physician
  • Gardner, MA
  • NPI 1699762286

  Hospital

  Care Compare affiliation
• Umass Memorial Medical Center, Inc.

  • General Acute Care Hospital
  • Worcester, MA
  • NPI 1831151455
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1127952000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1942297528",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "242 GREEN ST",
            "city": "GARDNER",
            "state": "MA",
            "postal_code": "014401336",
            "telephone_number": "978-630-6457",
            "fax_number": "978-630-6158"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "242 GREEN ST",
            "city": "GARDNER",
            "state": "MA",
            "postal_code": "014401336",
            "telephone_number": "978-630-6457",
            "fax_number": "978-630-6158"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DONNELLY",
        "first_name": "M.",
        "middle_name": "SHEILA",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-09-29",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RX0202X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Medical Oncology",
            "state": "MA",
            "license": "41136",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "0119334",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Brenda Dill, RN
• Alisha April Ditaranto
• Kerry Dodge
• Sarah Doiron
• Jennifer Marie Dominguez, RPH
• Erin Kate Dooley, MD/MPH
• Paula Roaf Dow, MS CCC-SLP
• Diana L Drake
• Alanna Draleau, BCBA
• Peter H. Dresens, M.D.

• Medical Oncology Physician in Gardner, MA
• Providers in Gardner, MA by specialty
• Medical Oncology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.