Pei-Yuan Tsou, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

036141489 Issued in IL

Practice address

801 S. Washington St.
Pediatric Hospitalists
Naperville, IL 60540-7430

Phone

(630) 527-5197

Fax

(630) 527-5526

NPI assigned

Mar 27, 2014

Sex

Female

Sole proprietor

No

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ptsou120424@uihealth.direct-ci.com

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.

• The Board of Trustees of the University of Illinois

  • Anatomic Pathology Physician
  • Chicago, IL
  • NPI 1386863819
  Medicare reassignment NPD
• The Board of Trustees of the University of Illinois

  • Occupational Medicine Physician
  • Chicago, IL
  • NPI 1043727571
  NPD
• The Board of Trustees of the University of Illinois

  • Pediatrics Physician
  • Chicago, IL
  • NPI 1093934275
  NPD

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

{
    "created_epoch": "1395878400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783555200000",
    "number": "1609293695",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1555 BARRINGTON RD",
            "city": "HOFFMAN ESTATES",
            "state": "IL",
            "postal_code": "601691019"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "801 S. WASHINGTON ST.",
            "address_2": "PEDIATRIC HOSPITALISTS",
            "city": "NAPERVILLE",
            "state": "IL",
            "postal_code": "605407430",
            "telephone_number": "630-527-5197",
            "fax_number": "630-527-5526"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1740 W Taylor St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606127232",
            "country_code": "US",
            "telephone_number": "866-600-2273",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1555 Barrington Rd",
            "address_purpose": "LOCATION",
            "city": "Hoffman Estates",
            "state": "IL",
            "postal_code": "601691019",
            "country_code": "US",
            "telephone_number": "847-818-7691",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "TSOU",
        "first_name": "PEI-YUAN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2014-03-27",
        "last_updated": "2026-07-09",
        "certification_date": "2026-07-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "IL",
            "license": "036141489",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "IL",
            "license": "036141489",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Tru Dental Illinois, P.C.
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• Alexis Pilapil Trujillo
• Andrew William Tselepis, RPH
• Justin Delos Tubbs, PTA
• Alicia Tucek
• Katherine Louise Tucker, PT
• Anna Tulley, MA-CF SLP
• George Tune, DC

• Hospitalist Physician in Naperville, IL
• Providers in Naperville, IL by specialty
• Hospitalist Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 9, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.