Allan J Olthoff, D.O.

Primary specialty

Neuromusculoskeletal Medicine & OMM PhysicianTaxonomy code 204D00000X

License

036064582 Issued in IL

Practice address

2600 S Michigan Ave Ste 210
Chicago, IL 60616-2859

Phone

(312) 623-3007

Fax

(312) 877-5643

NPI assigned

Jan 5, 2007

Last updated

Jul 30, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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 IL

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Family Practice

Education

Midwestern University, Chicago College of Osteopathic Med, 1981

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

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.

• Allan J Olthoff DO SC

  • Health Service Clinic/Center
  • Deerfield, IL
  • NPI 1003959933
  Medicare reassignment NPD Authorized official
• The Board of Trustees of the University of Illinois

  dba Occupational Health Service Institute (OHSI)

  • Occupational Medicine Physician
  • Chicago, IL
  • NPI 1043727571
  NPD (past)

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

{
    "created_epoch": "1167955200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753833600000",
    "number": "1780731067",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4524 S OAKENWALD AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606534514",
            "telephone_number": "312-623-3007"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2600 S MICHIGAN AVE STE 210",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606162859",
            "telephone_number": "312-623-3007",
            "fax_number": "312-877-5643"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OLTHOFF",
        "first_name": "ALLAN",
        "middle_name": "J",
        "credential": "D.O.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-01-05",
        "last_updated": "2025-07-30",
        "certification_date": "2025-07-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "204D00000X",
            "taxonomy_group": "",
            "desc": "Neuromusculoskeletal Medicine & OMM",
            "state": "IL",
            "license": "036064582",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "IL",
            "license": "036064582",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stacy Olswang, O.D.
• Megan Olszak, APRN, FNP-BC, FNP-C
• Iwona Olszewska
• Anthony P. Oltean, L.C.S.W., C.A.D.C.
• Cristina Olteanu, L.P.T.
• Chloe Oltman, LPC
• Collin T Oltman, DPT
• Christopher Oltmans
• Tolulope Joshua Olu-Lawal, MD
• Rachel Olufemi, NP

• Neuromusculoskeletal Medicine & OMM Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Neuromusculoskeletal Medicine & OMM Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 30, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• 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.