NPIMap

Individual provider Active NPI

Sean Singer

  • Dermatology Physician
  • Boston, MA
National Provider Identifier
1528695772
Registry record updated Jun 11, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Dermatology PhysicianTaxonomy code 207N00000X
License
1019736 Issued in MA
Practice address
221 Longwood Ave Ste 149
Boston, MA 02115-5817
Phone
(617) 732-5500
NPI assigned
Mar 26, 2020
Last updated
Jun 11, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 11, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Dermatology Physician 207N00000X 1019736 MA Primary

Addresses

Primary practice location

221 Longwood Ave Ste 149
Boston, MA 02115-5817

Mailing address

60 Jamaicaway Apt 5
Jamaica Plain, MA 02130-1023
Phone (508) 505-8911

Other practice location 1

75 Francis St
Boston, MA 02115-6110
Phone (617) 732-5500

Other practice location 2

50 Staniford St
Boston, MA 02114-2517
Phone (617) 726-2914

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20240617000177 MA Practitioner - Dermatology 1759824931 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Dermatology
Education
Harvard Medical School, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices

Practice addresses (Care Compare)

221 Longwood Ave
Boston, MA 02115-5804
Phone (617) 732-5500

450 Brookline Ave
Boston, MA 02215-5418
Phone (617) 632-3586

75 Francis St
Boston, MA 02115-6110
Phone (617) 732-5500

850 Boylston St
Chestnut Hill, MA 02467-2477
Phone (617) 732-5500

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Removal of skin lesions662
Skin biopsy83

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Brigham & Womens Physicians Organization Inc Dermatology CurrentSince Jul 1, 2024 Accepting new patients
Brigham and Women's Hospital Current Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Jul 1, 2024 Accepting new patients
Dana-Farber Cancer Institute, Inc. CurrentSince Jul 1, 2024 Accepting new patients
Dana-Farber Cancer Institute, Inc. Past Accepting new patients

Locations

221 Longwood Ave
Ste 149
Boston, MA 02115
Phone (617) 732-4918

450 Brookline Ave
Boston, MA 02215
Phone (508) 478-2061

75 Francis St
Boston, MA 02115

Interoperability endpoints

  • Direct secure messaging: singer.sean.bwh@direct.partners.masshiway.net

Organizations & group practices 7

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 2

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": "1585180800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1781136000000",
    "number": "1528695772",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "60 JAMAICAWAY APT 5",
            "city": "JAMAICA PLAIN",
            "state": "MA",
            "postal_code": "021301023",
            "telephone_number": "508-505-8911"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "221 LONGWOOD AVE STE 149",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021155817",
            "telephone_number": "617-732-5500"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "75 Francis St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021156110",
            "country_code": "US",
            "telephone_number": "617-732-5500",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "50 Staniford St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021142517",
            "country_code": "US",
            "telephone_number": "617-726-2914",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SINGER",
        "first_name": "SEAN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-26",
        "last_updated": "2026-06-11",
        "certification_date": "2026-06-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207N00000X",
            "taxonomy_group": "",
            "desc": "Dermatology",
            "state": "MA",
            "license": "1019736",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.