Paul H. Kolbjornsen, MD

Primary specialty

Diagnostic Radiology PhysicianTaxonomy code 2085R0202X

License

74087 Issued in MA

Practice address

30 Locust St
Northampton, MA 01060-2052

Phone

(413) 582-2101

Fax

(413) 582-2949

NPI assigned

Mar 31, 2006

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

Other identifiers 7

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

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.

• Mass General Brigham Medical Group Western Massachusetts Inc

  • Psychiatry Physician
  • Northampton, MA
  • NPI 1942605373
  NPD (past)

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

{
    "created_epoch": "1143763200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1780645598",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "291 MOODY ST",
            "city": "LUDLOW",
            "state": "MA",
            "postal_code": "010561246",
            "telephone_number": "800-688-6663",
            "fax_number": "413-589-7554"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "30 LOCUST ST",
            "city": "NORTHAMPTON",
            "state": "MA",
            "postal_code": "010602052",
            "telephone_number": "413-582-2101",
            "fax_number": "413-582-2949"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KOLBJORNSEN",
        "first_name": "PAUL",
        "middle_name": "H.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-31",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MA",
            "license": "74087",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BMC",
            "identifier": "000000006711",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBSMA",
            "identifier": "J11102",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "HARVARD PILGRIM",
            "identifier": "240477",
            "state": "MA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "3079571",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "CIGNA",
            "identifier": "3528769",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "TUFTS",
            "identifier": "074087",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AETNA",
            "identifier": "2359320",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kelley Knight, MSW, LICSW
• Luke Knowles
• Nancy Knudsen, LMFT
• Emily Koester, M. ED.
• Effrosyni Dionysios Kokaliari, LICSW PHD
• Marjorie J Kolchin, LIC. AC.
• Sara Milena Kolinski, PA-C
• Ellen Konstantinidis, MS, LSWA
• Tabitha McKenzie Kotary
• Richard W Kowalski, D.C.

• Diagnostic Radiology Physician in Northampton, MA
• Providers in Northampton, MA by specialty
• Diagnostic Radiology 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.