Individual provider Active NPI

Won H Oh, PA-C

  • Physician Assistant
  • Chicago, IL
National Provider Identifier
1053899138
Registry record updated Feb 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
085006591 Issued in IL
Practice address
259 E Erie St Ste 300
Chicago, IL 60611-2988
Phone
(312) 926-4566
Fax
(312) 926-6511
NPI assigned
Aug 1, 2018
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Feb 27, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 085006591 IL Primary
Surgical Physician Assistant 363AS0400X 085006591 IL

Addresses

Primary practice location

259 E Erie St Ste 300
Chicago, IL 60611-2988

Mailing address

259 E Erie St Ste 300
Chicago, IL 60611-2988
Phone (312) 926-4566

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address woh167423@uchospital.direct-ci.com University of Chicago Physicians Group

Medicare participation

Medicare enrollment files
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: No
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20181016000983 IL Practitioner - Physician Assistant 7719239920 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
University of ChicagoGroup PAC ID 7719899426, 1,674 clinicians

Practice addresses (Care Compare)

259 E Erie St
Chicago, IL 60611-2930
Phone (312) 503-1944

355 E Grand Ave
Chicago, IL 60611-5389
Phone (888) 824-0200

5841 S Maryland Ave
Chicago, IL 60637-1443
Phone (888) 824-0200

635 N Dearborn St
Chicago, IL 60654-4618
Phone (312) 926-0404

660 N Westmoreland Rd
302 Lake Forest OBGYN
Lake Forest, IL 60045-1673
Phone (312) 926-6146

675 N Saint Clair St
Chicago, IL 60611-5975

675 N St Clair
Chicago, IL 60611-5975

885 Roosevelt Rd
Glen Ellyn, IL 60137-6141

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

State licenses

LicenseStateTypeSpecialty
085006591ILMDSurgical Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
The University of Chicago Medical Center CurrentSince Sep 6, 2018 Accepting new patients
Northwestern Medical Faculty Foundation CurrentSince Jan 5, 2026 Accepting new patients
Northwestern Medical Faculty Foundation CurrentSince Jan 5, 2026 Accepting new patients
The University of Chicago Medical Center CurrentSince Sep 6, 2018 Accepting new patients
Central Dupage Physician Group Past Accepting new patients

Locations

150 Harvester Dr
Ste 300
Burr Ridge, IL 60527
Phone (773) 702-1061

Dept 5777
Carol Stream, IL 60122

259 E Erie St
Ste 300
Chicago, IL 60611
Phone (312) 926-4566

259 E Erie St
Fl 17
Chicago, IL 60611
Phone (312) 926-4566

660 N Westmoreland Rd
Lake Forest, IL 60045
Phone (847) 535-6100

660 N Westmoreland Rd
#302
Lake Forest, IL 60045

120 N Oak St
Oak Brook Mall, IL 60521
Phone (630) 856-6700

Interoperability endpoints

  • Direct secure messaging: woh167423@uchospital.direct-ci.com

Organizations & group practices 6

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.

Hospital & facility affiliations 4

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

NPI Registry JSON

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

{
    "created_epoch": "1533081600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772150400000",
    "number": "1053899138",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "259 E ERIE ST STE 300",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606112988",
            "telephone_number": "312-926-4566",
            "fax_number": "312-926-6511"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "259 E ERIE ST STE 300",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606112988",
            "telephone_number": "312-926-4566",
            "fax_number": "312-926-6511"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OH",
        "first_name": "WON",
        "middle_name": "H",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2018-08-01",
        "last_updated": "2026-02-27",
        "certification_date": "2026-02-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IL",
            "license": "085006591",
            "primary": true
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "IL",
            "license": "085006591",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "woh167423@uchospital.direct-ci.com",
            "affiliation": "Y",
            "affiliationName": "University of Chicago Physicians Group",
            "address_1": "5841 S Maryland Ave",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606371443",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.