NPIMap

Organization Active NPI

Western Mass Physician Associates Inc

Doing business as Holyoke Medical Group

  • Emergency Medical Services (Emergency Medicine) Physician
  • Chicopee, MA
National Provider Identifier
1922009547
Registry record updated Sep 22, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medical Services (Emergency Medicine) PhysicianTaxonomy code 207PE0004X
Legal business name
WESTERN MASS PHYSICIAN ASSOCIATES INC
Doing business as
Holyoke Medical Group
Various Practice Sites in Western Mass
Practice address
262 New Ludlow Rd
Chicopee, MA 01020-4324
Phone
(413) 534-2622
Fax
(413) 534-2661
NPI assigned
Aug 4, 2005
Last updated
Sep 22, 2026By the provider in NPPES
Organization subpart
Yes
Parent organization
VALLEY HEALTH SYSTEMS, INC.As reported in NPPES

NPPES NPI Registry

Updated by the provider on Sep 22, 2026

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

Authorized official

Name
Mr. Dean Vitarisi
Title
Senior VP, Cfo
Phone
(413) 534-2667

Specialties & licenses 15

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X NU
Anesthesiology Physician 207L00000X NU
Emergency Medical Services (Emergency Medicine) Physician 207PE0004X NU Primary
Family Medicine Physician 207Q00000X NU
Internal Medicine Physician 207R00000X NU
Critical Care Medicine (Internal Medicine) Physician 207RC0200X NU
Endocrinology, Diabetes & Metabolism Physician 207RE0101X NU
Gastroenterology Physician 207RG0100X NU
Infectious Disease Physician 207RI0200X NU
Obstetrics & Gynecology Physician 207V00000X MA
Orthopaedic Surgery Physician 207X00000X NU
Pediatrics Physician 208000000X MA
Surgery Physician 208600000X NU
Physical Therapist 225100000X NU
Obesity Medicine (Obstetrics & Gynecology) Physician 207VB0002X NU

Addresses

Primary practice location

262 New Ludlow Rd
Chicopee, MA 01020-4324

Mailing address

262 New Ludlow Rd
Chicopee, MA 01020-4324
Phone (413) 535-4714

Other identifiers 6

IdentifierTypeStateIssuer
M15781OtherBCBS OF MASS
T203OtherHARVARD PILGRIM
004245983MedicaidCT
CK1182OtherMAMEDICARE RAILROAD
M15781OtherBLUECARE 65
9770771MedicaidMA

Other names 2

  • Holyoke Medical Group Doing business as
  • Various Practice Sites in Western Mass Doing business as

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20040601000909 MA Part B Supplier - Clinic/Group Practice 5799767109 Receives reassigned benefits from 289 practitioners
2 other NPIs on this enrollment
Practice locations: Chicopee, MA; Westfield, MA; Springfield, MA; South Hadley, MA; Holyoke, MA

Other NPIs on the same Medicare enrollment 2

NPIs listed together on one Medicare enrollment, typically parts of the same organization.

National Provider Directory

National Provider Directory

Locations

131 Coventry St
Hartford, CT 06112
Phone (860) 714-2813

1962 Memorial Dr
Chicopee, MA 01020
Phone (413) 534-2759

10 Hospital Dr
Ste 201
Holyoke, MA 01040
Phone (413) 533-3923

140 Southampton Rd
Westfield, MA 01085
Phone (413) 533-2452

Practitioners & affiliated clinicians

Practitioners 302

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.

View all 302

NPI Registry JSON

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

{
    "created_epoch": "1123113600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1790035200000",
    "number": "1922009547",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "262 NEW LUDLOW RD",
            "city": "CHICOPEE",
            "state": "MA",
            "postal_code": "010204324",
            "telephone_number": "413-535-4714",
            "fax_number": "413-535-4716"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "262 NEW LUDLOW RD",
            "city": "CHICOPEE",
            "state": "MA",
            "postal_code": "010204324",
            "telephone_number": "413-534-2622",
            "fax_number": "413-534-2661"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "WESTERN MASS PHYSICIAN ASSOCIATES INC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "VALLEY HEALTH SYSTEMS, INC.",
        "enumeration_date": "2005-08-04",
        "last_updated": "2026-09-22",
        "certification_date": "2026-09-22",
        "status": "A",
        "authorized_official_last_name": "VITARISI",
        "authorized_official_first_name": "DEAN",
        "authorized_official_title_or_position": "SENIOR VP, CFO",
        "authorized_official_telephone_number": "413-534-2667",
        "authorized_official_name_prefix": "Mr."
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207PE0004X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine, Emergency Medical Services",
            "state": "NU",
            "license": null,
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "MA",
            "license": null,
            "primary": false
        },
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "MA",
            "license": null,
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "207VB0002X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology, Obesity Medicine",
            "state": "NU",
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS OF MASS",
            "identifier": "M15781",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "HARVARD PILGRIM",
            "identifier": "T203",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "004245983",
            "state": "CT"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE RAILROAD",
            "identifier": "CK1182",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BLUECARE 65",
            "identifier": "M15781",
            "state": null
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "9770771",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Holyoke Medical Group",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Holyoke Medical Group",
            "code": "3",
            "type": "Doing Business As"
        },
        {
            "organization_name": "Various Practice Sites in Western Mass",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

Other providers in Chicopee, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.