NPIMap

Organization Active NPI

Kerstein & Friedmann PC

  • General Practice Dentistry
  • Boston, MA
National Provider Identifier
1730261603
Registry record updated Sep 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
General Practice DentistryTaxonomy code 1223G0001X
Legal business name
KERSTEIN & FRIEDMANN PC
Practice address
665 Beacon St
Suite 204
Boston, MA 02215
Phone
(617) 247-1700
Fax
(617) 247-1611
NPI assigned
Oct 20, 2006
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. Rhonda Josephine Friedmann, DMDNPI 1518941855
Title
Treasurer Dentist
Phone
(617) 247-1700

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
DentistGroup: 193200000X MULTI-SPECIALTY GROUP 122300000X 15678 MA
General Practice DentistryGroup: 193200000X MULTI-SPECIALTY GROUP 1223G0001X Primary
ProsthodonticsGroup: 193200000X MULTI-SPECIALTY GROUP 1223P0700X 15650 MA

Addresses

Primary practice location

665 Beacon St
Suite 204
Boston, MA 02215

Mailing address

665 Beacon St
Suite 204
Boston, MA 02215
Phone (617) 247-1700

National Provider Directory

National Provider Directory

Locations

665 Beacon St
Ste 204
Boston, MA 02215
Phone (617) 247-1700

Practitioners & affiliated clinicians

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1161302400000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1757548800000",
    "number": "1730261603",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "665 BEACON ST",
            "address_2": "SUITE 204",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02215",
            "telephone_number": "617-247-1700",
            "fax_number": "617-247-1611"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "665 BEACON ST",
            "address_2": "SUITE 204",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "02215",
            "telephone_number": "617-247-1700",
            "fax_number": "617-247-1611"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "KERSTEIN & FRIEDMANN PC",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-10-20",
        "last_updated": "2025-09-11",
        "status": "A",
        "authorized_official_last_name": "FRIEDMANN",
        "authorized_official_first_name": "RHONDA",
        "authorized_official_middle_name": "JOSEPHINE",
        "authorized_official_title_or_position": "TREASURER  DENTIST",
        "authorized_official_telephone_number": "617-247-1700",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "DMD"
    },
    "taxonomies": [
        {
            "code": "122300000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Dentist",
            "state": "MA",
            "license": "15678",
            "primary": false
        },
        {
            "code": "1223G0001X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Dentist, General Practice",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "1223P0700X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Dentist, Prosthodontics",
            "state": "MA",
            "license": "15650",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, 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.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.