Stephen Howard Karshbaum, MD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

78711 Issued in MA

Practice address

1 Orthopedic Dr
Peabody, MA 01960-1668

Phone

(978) 818-6272

Fax

(978) 818-6282

NPI assigned

Jul 27, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in MA, RI, NH3 enrollments

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 3

Specialty

Diagnostic Radiology

Education

Tufts University School of Medicine, 1991

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sports Medicine North Orthopaedic Surgery, Inc. 87 clinicians

Chelmsford MRI PC 14 clinicians

Neb Radiology PC 11 clinicians

Orthopaedic Surgical Associates of Lowell, P.C. 43 clinicians

Shields Radiology Associates 16 clinicians

BMC Affiliated Physicians, Inc. 543 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Good Samaritan Medical Center Hospital, Brockton, MA, CCN 220111
• Boston Medical Center-Brighton Hospital, Brighton, MA, CCN 220036

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: skarshbaum252239@direct.bmc.masshiway.net

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.

• BMC Affiliated Physicians, Inc.

  • Internal Medicine Physician
  • Boston, MA
  • NPI 1245320910

  Diagnostic Radiology, MA

  Medicare reassignment Care Compare group NPD
• Chelmsford MRI, P.C.

  • Diagnostic Radiology Physician
  • Dedham, MA
  • NPI 1386662112

  Diagnostic Radiology, MA

  Medicare reassignment Care Compare group NPD
• Chelmsford MRI, P.C.

  • Diagnostic Radiology Physician
  • Springfield, MA
  • NPI 1821435553

  Diagnostic Radiology, MA

  Medicare reassignment Care Compare group NPD
• Neb Radiology PC

  • Diagnostic Radiology Physician
  • Roxbury Crossing, MA
  • NPI 1073590840

  Diagnostic Radiology, MA

  Medicare reassignment Care Compare group NPD
• Orthopaedic Surgical Associates of Lowell, P.C.

  • Orthopaedic Surgery Physician
  • North Chelmsford, MA
  • NPI 1457361040

  MA

  Medicare reassignment Care Compare group NPD
• Shields Radiology Associates

  • Diagnostic Radiology Physician
  • Natick, MA
  • NPI 1518913805

  Diagnostic Radiology, MA

  Medicare reassignment Care Compare group NPD
• Sports Medicine North Orthopaedic Surgery, Inc.

  • Specialist
  • Peabody, MA
  • NPI 1760423719

  MA

  Medicare reassignment Care Compare group NPD
• Steward Medical Group, Inc

  • Specialist
  • Brighton, MA
  • NPI 1356654495

  MA

  Medicare reassignment NPD
• Steward Medical Group, Inc

  • Internal Medicine Physician
  • Dartmouth, MA
  • NPI 1821349317

  MA

  Medicare reassignment NPD
• Orthopaedic Surgical Associates of Lowell, P.C.

  • Physical Therapist
  • Lowell, MA
  • NPI 1730956913
  Care Compare group NPD
• Sports Medicine North Orthopaedic Surgery, Inc

  • Multi-Specialty Clinic/Center
  • Gloucester, MA
  • NPI 1679168652
  Care Compare group NPD
• Sportsmedicine Atlantic Orthopaedics PA

  • Specialist
  • Portsmouth, NH
  • NPI 1881631554

  NH

  Medicare reassignment

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

• Boston Medical Center - Brighton Corporation

  • General Acute Care Hospital
  • Boston, MA
  • NPI 1720814072

  Hospital

  Care Compare affiliation
• Boston Medical Center - South Corporation

  • General Acute Care Hospital
  • Brockton, MA
  • NPI 1871329110

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1153958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785974400000",
    "number": "1124032271",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "960 MASSACHUSETTS AVE",
            "address_2": "FL 2",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02118"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 ORTHOPEDIC DR",
            "city": "PEABODY",
            "state": "MA",
            "postal_code": "019601668",
            "telephone_number": "978-818-6272",
            "fax_number": "978-818-6282"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "840 Harrison Ave",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021182905",
            "country_code": "US",
            "telephone_number": "617-638-6610",
            "fax_number": "617-638-6616",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "736 Cambridge St",
            "address_purpose": "LOCATION",
            "city": "Brighton",
            "state": "MA",
            "postal_code": "02135",
            "country_code": "US",
            "telephone_number": "617-789-2762",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "235 North Pearl St",
            "address_purpose": "LOCATION",
            "city": "Brockton",
            "state": "MA",
            "postal_code": "02301",
            "country_code": "US",
            "telephone_number": "508-427-2665",
            "fax_number": "508-427-2368",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KARSHBAUM",
        "first_name": "STEPHEN",
        "middle_name": "HOWARD",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-27",
        "last_updated": "2026-08-06",
        "certification_date": "2026-08-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "RI",
            "license": "MD11064",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MA",
            "license": "78711",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110061581A",
            "state": "MA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3129651",
            "state": "NH"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Cassandra P Karamourtopoulos
• John Karbassi, M.D.
• Karen Neckers OD
• Karen P. Szczechowicz M.D., PC
• Juliah Karobia Muthoni Ntomp
• Timothy Karthas
• Katz Optometry, P.C.
• Ellis H Katz
• Julian Katz
• Tamar Katz

• All providers in Peabody, MA
• Diagnostic Radiology Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 6, 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.