Cesar Melendez-Villegas, PSY.D

Primary specialty

PsychologistTaxonomy code 103T00000X

License

11581 Issued in MA

Practice address

900 Union St
Westborough, MA 01581-5408

Phone

(508) 856-0732

Fax

(508) 425-5126

NPI assigned

Aug 24, 2011

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 4

Medicare fee-for-service enrollment

Enrolled in MA

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: No
• Power mobility devices: No
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Clinical Psychologist

Education

Other, 2012

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Reliant Medical Group IncGroup PAC ID 5597755322, 638 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cesar.melendezvillegas.npi1922388792.reliant@direct.optumcare.masshiway.net

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

• Reliant Medical Group, Inc

  • Family Medicine Physician
  • Worcester, MA
  • NPI 1720017528
  Medicare reassignment Care Compare group NPD
• Gandara Mental Health Center Inc

  • Mental Health Counselor
  • Springfield, MA
  • NPI 1134107113
  NPD (past)
• Reliant Medical Group, Inc

  • Physical Therapist
  • Worcester, MA
  • NPI 1295827962
  NPD (past)

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

{
    "created_epoch": "1314144000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776729600000",
    "number": "1922388792",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5 NEPONSET ST",
            "address_2": "MEDICAL STAFF SERVICES",
            "city": "WORCESTER",
            "state": "MA",
            "postal_code": "016062714",
            "telephone_number": "508-856-0732",
            "fax_number": "508-425-5126"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "900 UNION ST",
            "city": "WESTBOROUGH",
            "state": "MA",
            "postal_code": "015815408",
            "telephone_number": "508-856-0732",
            "fax_number": "508-425-5126"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "10 Winthrop St Ste 17",
            "address_purpose": "LOCATION",
            "city": "Worcester",
            "state": "MA",
            "postal_code": "016044435",
            "country_code": "US",
            "telephone_number": "508-752-4665",
            "fax_number": "508-752-0947",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MELENDEZ-VILLEGAS",
        "first_name": "CESAR",
        "name_prefix": "Dr.",
        "credential": "PSY.D",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-08-24",
        "last_updated": "2026-04-21",
        "certification_date": "2026-04-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "103T00000X",
            "taxonomy_group": "",
            "desc": "Psychologist",
            "state": "MA",
            "license": "11581",
            "primary": true
        },
        {
            "code": "101YM0800X",
            "taxonomy_group": "",
            "desc": "Counselor, Mental Health",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MBHP",
            "identifier": "1303295",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NETWORK HEALTH",
            "identifier": "997303",
            "state": "MA"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1303295",
            "state": "MA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BMC",
            "identifier": "8443",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Medexpress Primary Care Massachusetts, P.C.
• Jennifer Megna, RPH
• Kalindi J Mehta, M.D.
• Daniel J Meininger, D.C.
• George A. Mele
• Bruce Robert Mendelsohn
• Andrea Meserve, MS CCC SLP
• Metro West Rehab Corp
• Metro West Rehab Corp
• Metro West Rehab Corp

• Psychologist in Westborough, MA
• Providers in Westborough, MA by specialty
• Psychologist in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 21, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.