Matthew S. Walzer, DPT

Primary specialty

Orthopedic Physical TherapistTaxonomy code 2251X0800X

License

PT21849 Issued in CA

Practice address

31271 Niguel Rd Ste J
Laguna Niguel, CA 92677-4135

Phone

(949) 443-5442

Fax

(949) 443-5463

NPI assigned

May 10, 2006

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

Medicare fee-for-service enrollment

Enrolled in CA

Enrollment records 1

Specialty

Physical Therapist in Private Practice

Education

Other, 1995

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Grace Physical Therapy, Inc.Group PAC ID 4385634443, 15 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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Grace Physical Therapy, Inc.

  dba Laguna Orthopedic Rehabilitation

  • Specialist
  • Laguna Niguel, CA
  • NPI 1386668739
  Medicare reassignment Care Compare group NPD
• California Rehabilitation & Sports Therapy a California Physical Ther

  dba California Rehabilitation & Sports Therapy

  • Multi-Specialty Clinic/Center
  • Mission Viejo, CA
  • NPI 1386696409

  Physical Therapist

  Medicare reassignment NPD
• California Rehab & Sports Therapy

  • Multi-Specialty Clinic/Center
  • Los Angeles, CA
  • NPI 1508540279
  NPD
• California Rehabilitation & Sports Therapy a California Physical Ther

  • Physical Therapy Clinic/Center
  • Anaheim, CA
  • NPI 1235180886

  Physical Therapist

  NPD
• Deborah Weinstein Physical Therapy

  • Physical Therapist
  • Laguna Niguel, CA
  • NPI 1881961258
  NPD

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

{
    "created_epoch": "1147219200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776124800000",
    "number": "1164472585",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9850 GENESEE AVE",
            "address_2": "SUITE 210",
            "city": "LAJOLLA",
            "state": "CA",
            "postal_code": "92037",
            "telephone_number": "858-535-1075",
            "fax_number": "858-453-9810"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "31271 NIGUEL RD STE J",
            "city": "LAGUNA NIGUEL",
            "state": "CA",
            "postal_code": "926774135",
            "telephone_number": "949-443-5442",
            "fax_number": "949-443-5463"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WALZER",
        "first_name": "MATTHEW",
        "middle_name": "S.",
        "name_prefix": "Mr.",
        "credential": "DPT",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-05-10",
        "last_updated": "2026-04-14",
        "certification_date": "2026-04-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225100000X",
            "taxonomy_group": "",
            "desc": "Physical Therapist",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2251X0800X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Orthopedic",
            "state": "CA",
            "license": "PT21849",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Frances Wallace, D.C.
• Jasmine Wallace
• Walmart Inc. (Walmart Pharmacy 10-2206)
• Walmart, Inc. (Walmart pharmacy 10-3164)
• Windy Michelle Waltzman
• Victoria Wang, MD
• Warby Parker Inc.
• Debra Davis Ware
• Gregory Warner, OT
• Sheree Jean Warner, LCSW

• Orthopedic Physical Therapist in Laguna Niguel, CA
• Providers in Laguna Niguel, CA by specialty
• Orthopedic Physical Therapist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 14, 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.