Individual provider Active NPI

Phillip Jon Hartfield, MD

  • Internal Medicine Physician
  • Boston, MA
National Provider Identifier
1063152049
Registry record updated Aug 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
1026220 Issued in MA
Practice address
55 Fruit St
Boston, MA 02114-2696
Phone
(617) 724-3874
Fax
(617) 724-9428
NPI assigned
Mar 29, 2022
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 5, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Hospitalist Physician 208M00000X 1026220 MA
Internal Medicine Physician 207R00000X 1026220 MA Primary

Addresses

Primary practice location

55 Fruit St
Boston, MA 02114-2696

Mailing address

55 Fruit St
Boston, MA 02114-2696
Phone (617) 724-3874

Other practice location 1

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

Other practice location 2

1153 Centre St
Jamaica Plain, MA 02130-3446
Phone (617) 983-7000

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20230706002694 MI Order and Referring Only - Internal MedicinePractitioner - Internal Medicine 4082073291

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Medical College of Wisconsin, 2023
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

399 Revolution Dr
Somerville, MA 02145-1444

399 Revolution Dr
Suite 580
Somerville, MA 02145-1572

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Bachelor of Science

State licenses

LicenseStateTypeSpecialty
4351050535MIMDStudent in an Organized Health Care Education/Training Program

NPI Registry JSON

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

{
    "created_epoch": "1648512000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785888000000",
    "number": "1063152049",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142696",
            "telephone_number": "617-724-3874",
            "fax_number": "617-724-9428"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142696",
            "telephone_number": "617-724-3874",
            "fax_number": "617-724-9428"
        }
    ],
    "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": "1153 Centre St",
            "address_purpose": "LOCATION",
            "city": "Jamaica Plain",
            "state": "MA",
            "postal_code": "021303446",
            "country_code": "US",
            "telephone_number": "617-983-7000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HARTFIELD",
        "first_name": "PHILLIP",
        "middle_name": "JON",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-03-29",
        "last_updated": "2026-08-05",
        "certification_date": "2026-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "MA",
            "license": "1026220",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MA",
            "license": "1026220",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.