Jon W Cronin, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

50231 Issued in MA

Practice address

100 Highland Street
S Shore Internal Med
Milton, MA 02186

Phone

(617) 698-8855

NPI assigned

May 31, 2006

Last updated

Jul 13, 2026By 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

Cardiovascular Disease (Cardiology)Also: Internal Medicine

Education

University of Massachusetts Medical School, 1981

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

South Shore Internal Medicine Associates Inc.Group PAC ID 8820066186, 11 clinicians

Milton Cardiac Testing, P.C.Group PAC ID 1254409352, 6 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Beth Israel Deaconess Hospital - Milton Hospital, Milton, MA, CCN 220108
• Beth Israel Deaconess Medical Center Hospital, Boston, MA, CCN 220086

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jcronin376877@direct.bilh.masshiway.net
• Direct secure messaging: jon.cronin@ssi.eclinicaldirectplus.com

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.

• Milton Cardiac Testing, P.C.

  • Cardiovascular Disease Physician
  • Milton, MA
  • NPI 1093827438
  Medicare reassignment Care Compare group NPD
• South Shore Internal Medicine Associates Inc.

  • Rheumatology Physician
  • Milton, MA
  • NPI 1053475012

  Internal Medicine

  Medicare reassignment Care Compare group NPD

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

• Beth Israel Deaconess Hospital Milton Inc

  • General Acute Care Hospital
  • Milton, MA
  • NPI 1174618953
  Care Compare affiliation
• Beth Israel Deaconess Medical Center, Inc.

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1548202641
  Care Compare affiliation

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

{
    "created_epoch": "1149033600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1326085523",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8 HEATHER DR",
            "city": "MILTON",
            "state": "MA",
            "postal_code": "021865265",
            "telephone_number": "617-698-8855"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 HIGHLAND STREET",
            "address_2": "S SHORE INTERNAL MED",
            "city": "MILTON",
            "state": "MA",
            "postal_code": "02186",
            "telephone_number": "617-698-8855"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CRONIN",
        "first_name": "JON",
        "middle_name": "W",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-31",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "50231",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Community Physicians Associates, Inc.
• Leslie Noel Cordella-Simon, MED,RD,LDN,CDE
• Jose Bienvenido Corporan, PA-C
• John Page Cotton
• Paul Joseph Crehan, PA
• Crossroad Counseling Services, LLC
• Donna M. Cullinan, NP
• Georgia May Cullington, DMD
• Jessica Cully, PA-C
• Kathy Cunningham, RD,LDN

• Internal Medicine Physician in Milton, MA
• Providers in Milton, MA by specialty
• Internal Medicine 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.