Joseph Guan, MD, MPH

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

036168139 Issued in IL

Practice address

259 E Erie St Ste 2330
Chicago, IL 60611-3926

Phone

(312) 926-6000

Fax

(312) 926-5971

NPI assigned

May 2, 2019

Last updated

Sep 15, 2026By 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

Internal Medicine

Education

Rush Medical College of Rush University, 2021

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Specialty Physicians of Illinois LLCGroup PAC ID 4183529456, 114 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Franciscan Home Care Home health agency, Olympia Fields, IL, CCN 147267
• Franciscan Health Olympia & Chicago Heights Hospital, Olympia Fields, IL, CCN 140172
• Franciscan Health Munster Hospital, Munster, IN, CCN 150165

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Specialty Physicians of Illinois, LLC

  • Internal Medicine Physician
  • Greenwood, IN
  • NPI 1124075676

  IL

  Medicare reassignment Care Compare group NPD
• Specialty Physicians of Illinois, LLC

  • Urgent Care Clinic/Center
  • Frankfort, IL
  • NPI 1962024612
  NPD

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Franciscan Health Olympia Fields

  • General Acute Care Hospital
  • Olympia Fields, IL
  • NPI 1588771919
  Care Compare affiliation
• Franciscan Health Olympia Fields & Chicago Heights

  dba Franciscan Home Care

  • Home Health Agency
  • Chicago Heights, IL
  • NPI 1508885930
  Care Compare affiliation
• Franciscan Health Munster

  • General Acute Care Hospital
  • Munster, IN
  • NPI 1427493246
  Care Compare affiliation

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

{
    "created_epoch": "1556755200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789430400000",
    "number": "1154986404",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "259 E ERIE ST STE 2330",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113926",
            "telephone_number": "312-926-6000",
            "fax_number": "312-926-5971"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "259 E ERIE ST STE 2330",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606113926",
            "telephone_number": "312-926-6000",
            "fax_number": "312-926-5971"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1950 W Polk St Ste 5210",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606123723",
            "country_code": "US",
            "telephone_number": "312-864-4462",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "600 S Paulina St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606123806",
            "country_code": "US",
            "telephone_number": "312-942-7100",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3700 W 203rd St Ste 301",
            "address_purpose": "LOCATION",
            "city": "Olympia Fields",
            "state": "IL",
            "postal_code": "604611182",
            "country_code": "US",
            "telephone_number": "708-679-2850",
            "fax_number": "708-503-3811",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GUAN",
        "first_name": "JOSEPH",
        "credential": "MD, MPH",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-05-02",
        "last_updated": "2026-09-15",
        "certification_date": "2026-09-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "125-077739",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036168139",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Idalia Guachichullca
• Ivan Guadarrama
• Jocelyn Guadarrama
• Stephanie Guadarrama
• Ivan Guan, MD
• Rebecca Li Guan, MD
• Stefano Guandalini, M.D,
• Guaranteed Medical Services, Inc.
• Esmeralda Guardado, REGISTERED NURSE
• Teresa Guardado, LCSW

• Internal Medicine Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Internal Medicine Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 15, 2026; 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.