Stephen J. Bonasera, MD

Primary specialty

Geriatric Medicine (Internal Medicine) PhysicianTaxonomy code 207RG0300X

License

290745 Issued in MA

Practice address

21 Dwight Rd Ste 204
Longmeadow, MA 01106-1765

Phone

(413) 795-0268

Fax

(413) 795-8502

NPI assigned

May 4, 2006

Last updated

Jan 21, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Geriatric Medicine

Education

Emory University School of Medicine, 1995

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Baystate Medical Practices IncGroup PAC ID 5991602971, 1,350 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Baystate Medical Center Hospital, Springfield, MA, CCN 220077
• Baystate Noble Hospital Hospital, Westfield, MA, CCN 220065
• Baystate Wing Hospital Hospital, Palmer, MA, CCN 220030

Procedures performed for Medicare patients

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Baystate Medical Practices, Inc

  • Emergency Medical Services (Emergency Medicine) Physician
  • Springfield, MA
  • NPI 1548205909

  Internal Medicine

  Medicare reassignment Care Compare group NPD

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

• Baystate Medical Center Inc

  dba Baystate Medical Center

  • General Acute Care Hospital
  • Springfield, MA
  • NPI 1487655064
  Care Compare affiliation
• Baystate Medical Center Inc

  dba Baystate Reference Laboratories

  • Clinical Medical Laboratory
  • Springfield, MA
  • NPI 1568488450

  Hospital

  Care Compare affiliation
• Baystate Noble Hospital Corporation

  • General Acute Care Hospital
  • Westfield, MA
  • NPI 1700816048
  Care Compare affiliation
• Baystate Wing Hospital Corporation

  dba Baystate Wing Hospital & Medical Centers

  • General Acute Care Hospital
  • Palmer, MA
  • NPI 1962410233
  Care Compare affiliation

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

{
    "created_epoch": "1146700800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1737417600000",
    "number": "1780632729",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "280 CHESTNUT STREET",
            "address_2": "2ND FL",
            "city": "SPRINGFIELD",
            "state": "MA",
            "postal_code": "011991001",
            "telephone_number": "413-794-5700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "21 DWIGHT RD STE 204",
            "city": "LONGMEADOW",
            "state": "MA",
            "postal_code": "011061765",
            "telephone_number": "413-795-0268",
            "fax_number": "413-795-8502"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "759 Chestnut Street",
            "address_purpose": "LOCATION",
            "city": "Springfield",
            "state": "MA",
            "postal_code": "011071619",
            "country_code": "US",
            "telephone_number": "413-794-3147",
            "fax_number": "413-794-4054",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BONASERA",
        "first_name": "STEPHEN",
        "middle_name": "J.",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-04",
        "last_updated": "2025-01-21",
        "certification_date": "2025-01-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "MA",
            "license": "290745",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Anna Beth Bilotti, BCBA, LABA
• Nancy Birt
• Katharine Bittner
• Chloe Blackmon
• Karina Bogdanis, MSW LICSW
• Andrew O Bonavita, DMD
• Maia Laine Boni
• Viola Laurie Borden, LPC, LMHC
• Erin Bosch
• Jennifer Bosini

• Geriatric Medicine (Internal Medicine) Physician in Longmeadow, MA
• Providers in Longmeadow, MA by specialty
• Geriatric Medicine (Internal Medicine) Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 21, 2025; 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.