Individual provider Active NPI

Christopher McMahan, DO

  • Diagnostic Radiology Physician
  • Worcester, MA
National Provider Identifier
1861244121
Registry record updated Jul 3, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
3019424 Issued in MA
Practice address
55 Lake Ave N
Worcester, MA 01655-0002
Phone
(478) 751-0367
NPI assigned
Apr 2, 2024
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 3, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 2085R0202X 3019424 MA Primary
Student in an Organized Health Care Education/Training Program 390200000X

Addresses

Primary practice location

55 Lake Ave N
Worcester, MA 01655-0002

Mailing address

55 Lake Ave N
Worcester, MA 01655-0002

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file
Eligible to order & refer
  • Part B services: No
  • Medical equipment: Yes
  • Home health: No
  • Power mobility devices: Yes
  • Hospice: No
Green means eligible to order or refer.

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

NPI Registry JSON

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

{
    "created_epoch": "1712016000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783036800000",
    "number": "1861244121",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 LAKE AVE N",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016550002"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 LAKE AVE N",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016550002",
            "telephone_number": "478-751-0367"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MCMAHAN",
        "first_name": "CHRISTOPHER",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2024-04-02",
        "last_updated": "2026-07-03",
        "certification_date": "2026-07-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "MA",
            "license": "3019424",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Worcester, MA

Sources for this page

Verify at the official NPI Registry.