NPIMap

Organization Active NPI

Western Mass Hospital Dental Clinic

  • Dental Clinic/Center
  • Westfield, MA
National Provider Identifier
1467766600
Registry record updated Dec 11, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Dental Clinic/CenterTaxonomy code 261QD0000X
License
4118 Issued in MA
Legal business name
WESTERN MASS HOSPITAL DENTAL CLINIC
Practice address
91 East Mountain Rd
Westfield, MA 01085
Phone
(413) 420-2200
NPI assigned
Jul 29, 2010
Last updated
Dec 11, 2025By the provider in NPPES
Organization subpart
Yes
Parent organization
HOLYOKE HEALTH CENTERAs reported in NPPES

NPPES NPI Registry

Updated by the provider on Dec 11, 2025

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

Authorized official

Name
Dr. Alejandro Esparza Perez, MDNPI 1124098595
Title
Ceo
Phone
(413) 420-2110

Authorized official NPPES reports the official by name only. The link goes to the one practitioner with that name whose NPPES practice address or phone number is this organization’s.

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Dental Clinic/Center 261QD0000X 4118 MA Primary
Federally Qualified Health Center (FQHC) 261QF0400X NU

Addresses

Primary practice location

91 East Mountain Rd
Westfield, MA 01085

Mailing address

PO Box 6260
230 Maple St
Holyoke, MA 01040-6260
Phone (413) 420-2200

National Provider Directory

National Provider Directory
Tax ID family
Western Mass Hospital Dental Clinic8 organizations share this tax ID, including this one
Part of
Western Mass Hospital Dental Clinic

Other organizations with this tax ID 7

Organizations that report the same tax identification number in the National Provider Directory.

Ownership & related parties

Parent organization (reported in NPPES) 1

This organization reports itself as a subpart in NPPES; the parent’s legal name matches this organization in the same state.

Practitioners & affiliated clinicians

Practitioners 2

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": "1280361600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1765411200000",
    "number": "1467766600",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 6260",
            "address_2": "230 MAPLE ST",
            "city": "HOLYOKE",
            "state": "MA",
            "postal_code": "010406260",
            "telephone_number": "413-420-2200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "91 EAST MOUNTAIN RD",
            "city": "WESTFIELD",
            "state": "MA",
            "postal_code": "01085",
            "telephone_number": "413-420-2200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WESTERN MASS HOSPITAL DENTAL CLINIC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "HOLYOKE HEALTH CENTER",
        "enumeration_date": "2010-07-29",
        "last_updated": "2025-12-11",
        "certification_date": "2025-12-11",
        "status": "A",
        "authorized_official_last_name": "ESPARZA PEREZ",
        "authorized_official_first_name": "ALEJANDRO",
        "authorized_official_title_or_position": "CEO",
        "authorized_official_telephone_number": "413-420-2110",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "261QD0000X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Dental",
            "state": "MA",
            "license": "4118",
            "primary": true
        },
        {
            "code": "261QF0400X",
            "taxonomy_group": "",
            "desc": "Clinic/Center, Federally Qualified Health Center (FQHC)",
            "state": "NU",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Westfield, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 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.