Individual provider Active NPI

Max Carlson, OTD, OTR/L

  • Occupational Therapist
  • Chicago, IL
National Provider Identifier
1265007728
Registry record updated Jan 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Occupational TherapistTaxonomy code 225X00000X
License
056.013638 Issued in IL
Practice address
700 N Green St
Chicago, IL 60642-5996
Phone
(312) 392-1640
NPI assigned
May 26, 2021
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 21, 2026

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 056.013638 IL Primary

Addresses

Primary practice location

700 N Green St
Chicago, IL 60642-5996

Mailing address

1620 W Harrison St
Chicago, IL 60612-3801

Other practice location 1

1620 W Harrison St
Chicago, IL 60612-3801
Phone (213) 942-5000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Not enrolled

State licenses

LicenseStateTypeSpecialty
056.013638ILMDOccupational Therapist

NPI Registry JSON

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

{
    "created_epoch": "1621987200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768953600000",
    "number": "1265007728",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1620 W HARRISON ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123801"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "700 N GREEN ST",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606425996",
            "telephone_number": "312-392-1640"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1620 W Harrison St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606123801",
            "country_code": "US",
            "telephone_number": "213-942-5000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "CARLSON",
        "first_name": "MAX",
        "credential": "OTD, OTR/L",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2021-05-26",
        "last_updated": "2026-01-21",
        "certification_date": "2026-01-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "225X00000X",
            "taxonomy_group": "",
            "desc": "Occupational Therapist",
            "state": "IL",
            "license": "056.013638",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 21, 2026; 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.