NPIMap

Organization Active NPI

Michael W. Marcus, M.D., P.C.

  • Clinical Social Worker
  • Winchester, MA
National Provider Identifier
1780891697
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Clinical Social WorkerTaxonomy code 1041C0700X
Legal business name
MICHAEL W. MARCUS, M.D., P.C.
Practice address
898 Main St
Winchester, MA 01890-1913
Phone
(781) 721-2737
NPI assigned
May 17, 2007
Last updated
Sep 11, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Sep 11, 2025

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

Authorized official

Name
Dr. Michael W. Marcus, MDNPI 1669571253
Title
President
Phone
(781) 721-2737

Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Clinical Nurse Specialist 364S00000X NU
Clinical Social Worker 1041C0700X NU Primary
Psychiatry Physician 2084P0800X NU

Addresses

Primary practice location

898 Main St
Winchester, MA 01890-1913

Mailing address

898 Main St
Winchester, MA 01890-1913
Phone (781) 721-2737

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20050111000530 MA Part B Supplier - Clinic/Group Practice 7810945359 Receives reassigned benefits from 7 practitioners
Practice locations: Winchester, MA

National Provider Directory

National Provider Directory

Locations

898 Main St
Winchester, MA 01890
Phone (781) 721-2737

Practitioners & affiliated clinicians

Practitioners 8

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

NPI Registry JSON

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

{
    "created_epoch": "1179360000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1780891697",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "898 MAIN ST",
            "city": "WINCHESTER",
            "state": "MA",
            "postal_code": "018901913",
            "telephone_number": "781-721-2737"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "898 MAIN ST",
            "city": "WINCHESTER",
            "state": "MA",
            "postal_code": "018901913",
            "telephone_number": "781-721-2737"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MICHAEL W. MARCUS, M.D., P.C.",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-05-17",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "MARCUS",
        "authorized_official_first_name": "MICHAEL",
        "authorized_official_middle_name": "W.",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "781-721-2737",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "364S00000X",
            "taxonomy_group": "",
            "desc": "Clinical Nurse Specialist",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "1041C0700X",
            "taxonomy_group": "",
            "desc": "Social Worker, Clinical",
            "state": "NU",
            "license": null,
            "primary": true
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "NU",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Winchester, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.