William Knott Dilauro, D.O.

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

275161 Issued in MA

Practice address

340 Thompson Rd
Webster, MA 01570-1509

Phone

(508) 640-2982

Fax

(508) 943-2605

NPI assigned

May 6, 2014

Last updated

Feb 11, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in MA

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

Specialty

Psychiatry

Education

Other, 2014

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Umass Memorial Medical Group IncGroup PAC ID 4284539891, 2,494 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Umass Memorial Health - Harrington Hospital Hospital, Southbridge, MA, CCN 220019

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as apm

Quality

82.98

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

Practice roles

Locations

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

• Umass Memorial Medical Group Inc

  • Internal Medicine Physician
  • Worcester, MA
  • NPI 1760445373

  Psychiatry

  Medicare reassignment Care Compare group NPD
• Umass Memorial Health-Harrington Hospital Inc

  • General Acute Care Hospital
  • Southbridge, MA
  • NPI 1790780047
  Medicare reassignment NPD
• Umass Memorial Medical Group, Inc.

  dba Urgent Care Express at Harrington

  • Urgent Care Clinic/Center
  • Oxford, MA
  • NPI 1982381018
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Umass Memorial Health-Harrington Hospital Inc

  • General Acute Care Hospital
  • Southbridge, MA
  • NPI 1790780047
  Care Compare affiliation

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

{
    "created_epoch": "1399334400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770768000000",
    "number": "1558771949",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 40",
            "city": "SOUTHBRIDGE",
            "state": "MA",
            "postal_code": "015500040",
            "telephone_number": "508-909-7799"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "340 THOMPSON RD",
            "city": "WEBSTER",
            "state": "MA",
            "postal_code": "015701509",
            "telephone_number": "508-640-2982",
            "fax_number": "508-943-2605"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "25 Hackett Blvd",
            "address_2": "Department of Psychiatry, Albany Medical Center",
            "address_purpose": "LOCATION",
            "city": "Albany",
            "state": "NY",
            "postal_code": "122083462",
            "country_code": "US",
            "telephone_number": "518-262-5511",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "52 Oak St",
            "address_purpose": "LOCATION",
            "city": "Middleboro",
            "state": "MA",
            "postal_code": "02346",
            "country_code": "US",
            "telephone_number": "774-213-8400",
            "fax_number": "508-946-6185",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DILAURO",
        "first_name": "WILLIAM",
        "middle_name": "KNOTT",
        "credential": "D.O.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2014-05-06",
        "last_updated": "2026-02-11",
        "certification_date": "2026-02-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "MA",
            "license": "275161",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Olivia Grace Deirhardt, LMT
• Ashley Elizabeth Deluca
• Alana Dery
• Anja Minna Devine
• Diane Cappoli
• Joshua Robert Dimon, DC
• Christine L Ditullio, CNP
• Sandra L Donaghy, RN
• Melissa Anne Dosick, MA, C.A.G.S.
• Mary Teresa Dupuis

• Psychiatry Physician in Webster, MA
• Providers in Webster, MA by specialty
• Psychiatry Physician in Massachusetts

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 11, 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.