Individual provider Active NPI

Brian Greenfield, DPT

  • Neurology Physical Therapist
  • Chicago, IL
National Provider Identifier
1366397960
Registry record updated Feb 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurology Physical TherapistTaxonomy code 2251N0400X
License
070.022519 Issued in IL
Practice address
1401 S California Ave
Chicago, IL 60608-1858
Phone
(773) 522-2010
NPI assigned
Feb 28, 2026
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 28, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Neurology Physical Therapist 2251N0400X 070.022519 IL Primary

Addresses

Primary practice location

1401 S California Ave
Chicago, IL 60608-1858

Mailing address

1401 S California Ave RM 2703
Chicago, IL 60608-1694

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
070.022519ILMDNeurology Physical Therapist

NPI Registry JSON

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

{
    "created_epoch": "1772236800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772236800000",
    "number": "1366397960",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1401 S CALIFORNIA AVE RM 2703",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606081694"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1401 S CALIFORNIA AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606081858",
            "telephone_number": "773-522-2010"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GREENFIELD",
        "first_name": "BRIAN",
        "name_prefix": "Dr.",
        "credential": "DPT",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2026-02-28",
        "last_updated": "2026-02-28",
        "certification_date": "2026-02-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2251N0400X",
            "taxonomy_group": "",
            "desc": "Physical Therapist, Neurology",
            "state": "IL",
            "license": "070.022519",
            "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 Feb 28, 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.