Individual provider Active NPI

Mary Catherine Liwag, PT, DPT

  • Physical Therapist
  • Mamaroneck, NY
National Provider Identifier
1790228120
Registry record updated Jul 16, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physical TherapistTaxonomy code 225100000X
License
041018 Issued in NY
Practice address
845 Palmer Ave
Mamaroneck, NY 10543-2406
Phone
(914) 698-6005
NPI assigned
Dec 3, 2016
Reactivated
Sep 30, 2024
Last updated
Jul 16, 2025By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 16, 2025

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physical Therapist 225100000X 041018 NY Primary

Addresses

Primary practice location

845 Palmer Ave
Mamaroneck, NY 10543-2406

Mailing address

233 N Main St
New City, NY 10956-4018
Phone (845) 708-7855

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in NY, NJ2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20241007002289 NY Practitioner - Physical Therapist in Private Practice 7517498173 Reassigns benefits to 1 organization
I20250929001982 NJ Practitioner - Physical Therapist in Private Practice 7517498173 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physical Therapist in Private Practice
Education
Other, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Affinity Rehabilitation LLPGroup PAC ID 4789843376, 114 clinicians

Practice addresses (Care Compare)

200 Old Hook Rd
Harrington Park, NJ 07640-1744
Phone (551) 230-1543

500 N Columbus Ave
Mount Vernon, NY 10552-1335
Phone (914) 266-3796

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

Practice roles

OrganizationSpecialtyStatusNew patients
Affinity Rehabilitation LLP CurrentSince Sep 1, 2024 Accepting new patients
Healthpro Heritage Rehab & Fitness, LLC Physical Therapist CurrentSince Aug 15, 2025 Accepting new patients
Healthpro Heritage Rehab & Fitness, LLC Physical Therapist CurrentSince Aug 15, 2025 Accepting new patients

Locations

500 N Columbus Ave
Mount Vernon, NY 10552
Phone (914) 266-3796

1 Johnsarbor Dr W
Rochester, NY 14620
Phone (585) 532-7214

Organizations & group practices 3

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.

NPI Registry JSON

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

{
    "created_epoch": "1480723200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752624000000",
    "number": "1790228120",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "233 N MAIN ST",
            "city": "NEW CITY",
            "state": "NY",
            "postal_code": "109564018",
            "telephone_number": "845-708-7855"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "845 PALMER AVE",
            "city": "MAMARONECK",
            "state": "NY",
            "postal_code": "105432406",
            "telephone_number": "914-698-6005"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LIWAG",
        "first_name": "MARY CATHERINE",
        "credential": "PT, DPT",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2016-12-03",
        "last_updated": "2025-07-16",
        "certification_date": "2025-07-16",
        "deactivation_date": "2021-06-02",
        "reactivation_date": "2024-09-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "NY",
            "license": "041018",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Mamaroneck, NY

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 16, 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.