Lorraine Mazelis Flaherty, P.T.

Primary specialty

Physical TherapistTaxonomy code 225100000X

License

PT00009724 Issued in WA

Practice address

4027 Hoyt Ave
Everett, WA 98201-4920

Phone

(425) 304-8476

NPI assigned

Aug 31, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 3

Other names 1

• Ms. Lorraine Rachel Mazelis Former name

Medicare fee-for-service enrollment

Enrolled in WA

Enrollment records 1

Specialty

Physical Therapist in Private Practice

Education

Other, 1995

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Optum Care Washington PLLCGroup PAC ID 6406752153, 684 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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 and National Provider Directory roles.

• Optum Care Washington PLLC

  • Multi-Specialty Clinic/Center
  • Everett, WA
  • NPI 1831186766
  Medicare reassignment Care Compare group NPD
• Optum Care Washington PLLC

  • Durable Medical Equipment & Medical Supplies
  • Marysville, WA
  • NPI 1194428425
  NPD
• Aurora Village Physical Therapy, Inc

  • Physical Therapist
  • Shoreline, WA
  • NPI 1326111477
  NPD (past)
• Optum Care Washington PLLC

  • Ambulatory Surgical Clinic/Center
  • Everett, WA
  • NPI 1154318103
  NPD (past)

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

{
    "created_epoch": "1156982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776384000000",
    "number": "1689785446",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7600 EVERGREEN WAY",
            "city": "EVERETT",
            "state": "WA",
            "postal_code": "982036421",
            "telephone_number": "206-860-5414"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4027 HOYT AVE",
            "city": "EVERETT",
            "state": "WA",
            "postal_code": "982014920",
            "telephone_number": "425-304-8476"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FLAHERTY",
        "first_name": "LORRAINE",
        "middle_name": "MAZELIS",
        "name_prefix": "Ms.",
        "credential": "P.T.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-08-31",
        "last_updated": "2026-04-17",
        "certification_date": "2026-04-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": "WA",
            "license": "PT00009724",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2058904",
            "state": "WA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "REGENCE BLUE SHIELD PIN",
            "identifier": "60559U",
            "state": "WA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "PT LICENSE",
            "identifier": "PT00009724",
            "state": "WA"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "LORRAINE",
            "last_name": "MAZELIS",
            "middle_name": "RACHEL",
            "prefix": "MS.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Rena Lee Fitzgerald
• Amy Elizabeth Fitzpatrick, ND
• Kari D Fitzsimmons, M.D.
• Laura Fiyak
• Michael Flacco, M.D.
• Alecia Flanagan
• Kelli Mims Flanagin, MA, LMHC, MHP
• Daniel L. Flax
• Sarah Maree Flay, ARNP,CNM
• Alexa Elin Flem, MS, LMHC, MHP

• Physical Therapist in Everett, WA
• Providers in Everett, WA by specialty
• Physical Therapist in Washington

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 17, 2026; 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.