Ashley Jillian Williamson, M.D.

Primary specialty

Vascular Surgery PhysicianTaxonomy code 2086S0129X

License

036143888 Issued in IL

Practice address

5841 S Maryland Ave # Mc6040
Chicago, IL 60637-1447

Phone

(773) 753-1880

Fax

(773) 702-2140

NPI assigned

Jun 7, 2015

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in IL, IN2 enrollments

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 2

Specialty

Vascular Surgery

Education

Other, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

University of ChicagoGroup PAC ID 7719899426, 1,674 clinicians

The Methodist Hospitals IncGroup PAC ID 9638063894, shared by 7 NPIs, 131 clinicians

The University of Chicago Medical CenterGroup PAC ID 7618880766, 907 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• The University of Chicago Medical Center Hospital, Chicago, IL, CCN 140088
• Uchicago Medicine Northwest Indiana Hospital, Crown Point, IN, CCN 150195

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as apm

Quality

82.45

Promoting interoperability

100

Improvement activities

40

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as apm

Quality

82.45

Promoting interoperability

100

Improvement activities

40

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: awilliamson189504@themethodisthospitals.direct-ci.com
• Direct secure messaging: awilliamsonmd101245@uchospital.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 University of Chicago Medical Center

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1033218128
  Medicare reassignment Care Compare group NPD
• University of Chicago

  • Multi-Specialty Clinic/Center
  • Chicago, IL
  • NPI 1821048786

  IN

  Medicare reassignment Care Compare group NPD
• Mount Sinai Community Foundation

  • Rehabilitation Hospital
  • Chicago, IL
  • NPI 1376715896
  Medicare reassignment NPD
• The Methodist Hospitals, Inc

  • Internal Medicine Physician
  • Gary, IN
  • NPI 1720290349
  Medicare reassignment NPD
• The Methodist Hospitals, Inc

  • Neurology Physician
  • Gary, IN
  • NPI 1720290588
  Medicare reassignment NPD
• Mount Sinai Community Foundation

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1982657854
  NPD
• Mount Sinai Community Foundation Dba Sinai Medical Group

  • Family Medicine Physician
  • Chicago, IL
  • NPI 1407264583
  NPD
• The University of Chicago Medical Center

  • Community/Retail Pharmacy
  • Calumet City, IL
  • NPI 1255895678
  NPD
• The Methodist Hospitals, Inc

  • Cardiovascular Disease Physician
  • Gary, IN
  • NPI 1912573585
  NPD
• The Methodist Hospitals, Inc.

  • Surgery Physician
  • Gary, IN
  • NPI 1609104033
  NPD

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

• The University of Chicago Medical Center

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1508956509
  Care Compare affiliation
• Uchicago Medicine Northwest Indiana Inc

  • General Acute Care Hospital
  • Crown Point, IN
  • NPI 1144914532
  Care Compare affiliation

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

{
    "created_epoch": "1433635200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1749081600000",
    "number": "1548640386",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "150 HARVESTER DR STE 300",
            "city": "BURR RIDGE",
            "state": "IL",
            "postal_code": "605275965"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5841 S MARYLAND AVE # MC6040",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606371447",
            "telephone_number": "773-753-1880",
            "fax_number": "773-702-2140"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "10855 Virginia St",
            "address_purpose": "LOCATION",
            "city": "Crown Point",
            "state": "IN",
            "postal_code": "463070210",
            "country_code": "US",
            "telephone_number": "888-824-0200",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "WILLIAMSON",
        "first_name": "ASHLEY",
        "middle_name": "JILLIAN",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2015-06-07",
        "last_updated": "2025-06-05",
        "certification_date": "2025-06-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IL",
            "license": "125066659",
            "primary": false
        },
        {
            "code": "2086S0129X",
            "taxonomy_group": "",
            "desc": "Surgery, Vascular Surgery",
            "state": "IN",
            "license": "01094916A",
            "primary": false
        },
        {
            "code": "2086S0129X",
            "taxonomy_group": "",
            "desc": "Surgery, Vascular Surgery",
            "state": "IL",
            "license": "036143888",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Vivian Danielle Williams, LPN
• Wadsworth Alexander Williams II
• William J Williams, D.D.S.
• William Jacob Williams, D.D.S.
• Zainab Williams, APRN
• Camille Williamson, DSW, LCSW
• Deisi Williamson
• Francesca Williamson
• Jordan A Williamson
• Joy Deliverance Williamson

• Vascular Surgery Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Vascular Surgery Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 5, 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.