Individual provider Active NPI

Haley J Willis, OTD, OTR/L

  • Occupational Therapist
  • Medford, MA
National Provider Identifier
1821726001
Registry record updated Dec 9, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Occupational TherapistTaxonomy code 225X00000X
License
14578 Issued in MA
Practice address
1 Cabot Rd
Medford, MA 02155-5117
Phone
(978) 223-8611
NPI assigned
Aug 15, 2022
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Dec 9, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Occupational Therapist 225X00000X 14578 MA Primary

Addresses

Primary practice location

1 Cabot Rd
Medford, MA 02155-5117

Mailing address

45 Old Cart Rd
S Hamilton, MA 01982-2516
Phone (978) 223-8611

Medicare participation

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

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20230630001484 MA Practitioner - Occupational Therapist in Private Practice 3274992771 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Occupational Therapist in Private Practice
Education
Other, 2022
Medicare assignment
May accept Medicare assignment

Practice addresses (Care Compare)

147 Milk St
Boston, MA 02109-4806

147 Milk St
Boston, MA 02109-4862

8 Blackburn Ctr
Gloucester, MA 01930-2268

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Cambridge Public Health Commission Current Accepting new patients
Atrius Health, Inc. CurrentSince Dec 18, 2023 Accepting new patients
Harmeling Physical Therapy & Sports Fitness, Inc. CurrentSince Jun 21, 2023 Accepting new patients
Atrius Health, Inc. Occupational Therapist Current Accepting new patients
Atrius Health, Inc. CurrentSince Dec 18, 2023 Accepting new patients

Locations

147 Milk St
Fl 9
Boston, MA 02109
Phone (617) 559-8051

133 Brookline Ave
Boston, MA 02215
Phone (617) 421-1000

5A Hutchinson Dr
Danvers, MA 01923
Phone (978) 750-8188

8 Blackburn Ctr
Gloucester, MA 01930
Phone (978) 283-0888

40 Holland St
Somerville, MA 02144
Phone (617) 629-6000

255 Grapevine Rd
Wenham, MA 01984
Phone (978) 524-0000

Interoperability endpoints

  • Direct secure messaging: hwillis124906@direct.challiance.masshiway.net

Organizations & group practices 5

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.

NPI Registry JSON

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

{
    "created_epoch": "1660521600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765238400000",
    "number": "1821726001",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "45 OLD CART RD",
            "city": "S HAMILTON",
            "state": "MA",
            "postal_code": "019822516",
            "telephone_number": "978-223-8611"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 CABOT RD",
            "city": "MEDFORD",
            "state": "MA",
            "postal_code": "021555117",
            "telephone_number": "978-223-8611"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIS",
        "first_name": "HALEY",
        "middle_name": "J",
        "credential": "OTD, OTR/L",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2022-08-15",
        "last_updated": "2025-12-09",
        "certification_date": "2025-12-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225X00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist",
            "state": "MA",
            "license": "14578",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Medford, MA

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 9, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.