Madison Kaley Markstrom, MSOT, OTR/L

Primary specialty

Occupational TherapistTaxonomy code 225X00000X

Practice address

221 N San Dimas Ave # 219
San Dimas, CA 91773-2664

Phone

(909) 519-8912

NPI assigned

Jun 16, 2025

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

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

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.

• Building Blocks Therapy 4 Kids, LLC

  • Pediatric Occupational Therapist
  • San Dimas, CA
  • NPI 1073926051
  NPD

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

{
    "created_epoch": "1750032000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750032000000",
    "number": "1396631529",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "238 E BENBOW ST",
            "city": "COVINA",
            "state": "CA",
            "postal_code": "917222807",
            "telephone_number": "626-646-6468"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "221 N SAN DIMAS AVE # 219",
            "city": "SAN DIMAS",
            "state": "CA",
            "postal_code": "917732664",
            "telephone_number": "909-519-8912"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARKSTROM",
        "first_name": "MADISON",
        "middle_name": "KALEY",
        "credential": "MSOT, OTR/L",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2025-06-16",
        "last_updated": "2025-06-16",
        "certification_date": "2025-06-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225X00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist",
            "state": "CA",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Natalie Marin
• Mario Aleman DDS Dental Corp
• Frank Mariscal
• Mark Daniel Lin MD., Inc
• Chantal Markarian, MD
• Juan Carlos Marquez
• Miguel Marquez
• Savana Kate Marroquin
• Amanda Martin
• Jacqueline Martin

• Occupational Therapist in San Dimas, CA
• Providers in San Dimas, CA by specialty
• Occupational Therapist in California

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 16, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.