NPIMap

Individual provider Active NPI

Dean W. Singer, D.O.

  • Family Medicine Physician
  • Greenfield, MA
National Provider Identifier
1396131538
Registry record updated Jul 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
273045 Issued in MA
Practice address
55 Federal St Ste 220
Greenfield, MA 01301-2592
Phone
(413) 225-2792
Fax
(833) 941-2303
NPI assigned
Apr 14, 2015
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 29, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Addiction Medicine (Family Medicine) Physician 207QA0401X 273045 MA
Family Medicine Physician 207Q00000X 273045 MA Primary

Addresses

Primary practice location

55 Federal St Ste 220
Greenfield, MA 01301-2592

Mailing address

52 North St
Shelburne Falls, MA 01370-1006
Phone (857) 366-1138

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20181003003312 MA Practitioner - Family Practice 8729397781 Reassigns benefits to 4 organizations
I20260417003008 MA Practitioner - Addiction Medicine 8729397781 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Addiction Medicine
Education
New York College of Osteo Medicine of New York Institute of Technology, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Bridge Psychiatry PLLCGroup PAC ID 6002310471, 2 clinicians
Greenfield Primary Care PLLCGroup PAC ID 6204241235, 7 clinicians

Practice addresses (Care Compare)

55 Federal St
Greenfield, MA 01301-2546
Phone (413) 225-2792

55 Federal St
Suite 220
Greenfield, MA 01301-2592
Phone (413) 225-2792

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
22.11 of 100Reported as individual
Quality
0
Improvement activities
0
Cost
73.69

Procedures performed for Medicare patients

ProcedureNumber of procedures
Melanoma (skin cancer) excision22
Removal of tissue1-10
Removal of skin lesions408
Removal of nail tissue1-10
Removal or shaving of skin growth17
Skin biopsy81

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Bridge Psychiatry PLLC CurrentSince Jun 20, 2025 Accepting new patients
Greenfield Primary Care PLLC Family Medicine CurrentSince Dec 1, 2020 Accepting new patients
Bridge Rehab LLC Current Accepting new patients
Holyoke Capital JV, LLC CurrentSince Oct 6, 2025 Accepting new patients
Devens Treatment & Recovery Center, LLC CurrentSince Oct 6, 2025 Accepting new patients

Locations

19 Midstate Dr
Ste 110
Auburn, MA 01501

85 Patton Rd
Devens, MA 01434
Phone (978) 615-5200

146 Federal St
Greenfield, MA 01301
Phone (413) 774-2222

55 Federal St
Ste 220
Greenfield, MA 01301
Phone (413) 225-2792

1 Arch Pl
Ste 1
Greenfield, MA 01301
Phone (413) 225-2792

55 Federal St
Greenfield, MA 01301
Phone (413) 772-2935

1233 Main St
Holyoke, MA 01040
Phone (413) 264-0819

Interoperability endpoints

  • Direct secure messaging: dean.singer.1@24855.direct.athenahealth.com

Organizations & group practices 5

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.

Hospital & facility affiliations 8

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

NPI Registry JSON

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

{
    "created_epoch": "1428969600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753747200000",
    "number": "1396131538",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "52 NORTH ST",
            "city": "SHELBURNE FALLS",
            "state": "MA",
            "postal_code": "013701006",
            "telephone_number": "857-366-1138"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FEDERAL ST STE 220",
            "city": "GREENFIELD",
            "state": "MA",
            "postal_code": "013012592",
            "telephone_number": "413-225-2792",
            "fax_number": "833-941-2303"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SINGER",
        "first_name": "DEAN",
        "middle_name": "W.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-04-14",
        "last_updated": "2025-07-29",
        "certification_date": "2025-07-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207QA0401X",
            "taxonomy_group": "",
            "desc": "Family Medicine, Addiction Medicine",
            "state": "MA",
            "license": "273045",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MA",
            "license": "273045",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Greenfield, MA

Sources for this page

Verify at the official NPI Registry.