Catherine Ahn, MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

036113618 Issued in IL

Practice address

800 W Central Rd
Arlington Heights, IL 60005-2349

Phone

(847) 618-1000

NPI assigned

Dec 1, 2006

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Electronic endpoints 3

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

Anesthesiology

Education

Other, 2001

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Northwestern Medical Faculty FoundationGroup PAC ID 4587576814, 4,386 clinicians

Midwest Anesthesia Partners LLCGroup PAC ID 6204737596, 117 clinicians

City of Hope Medical Group of Illinois PLLCGroup PAC ID 3274446596, 129 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Midwestern Region Med Center, Inc Hospital, Zion, IL, CCN 140100

Merit-based Incentive Payment System (MIPS)

Final score

84.9 of 100Reported as group

Quality

75.91

Promoting interoperability

99

Improvement activities

40

Cost

74.6

Merit-based Incentive Payment System (MIPS)

Final score

86.5 of 100Reported as group

Quality

74.24

Promoting interoperability

100

Improvement activities

40

Cost

66.56

Merit-based Incentive Payment System (MIPS)

Final score

95.19 of 100Reported as apm

Quality

83.05

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: cahn250886@direct.myadvocateaurora.org
• Direct secure messaging: cahn211542@cityofhope.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.

• City of Hope Medical Group of Illinois PLLC

  • Specialist
  • Zion, IL
  • NPI 1548258072
  Medicare reassignment Care Compare group NPD
• Midwest Anesthesia Partners, LLC

  • Anesthesiology Physician
  • Chicago, IL
  • NPI 1255380184
  Medicare reassignment Care Compare group NPD
• Northwestern Medical Faculty Foundation

  • Multi-Specialty Clinic/Center
  • Carol Stream, IL
  • NPI 1346235314
  Medicare reassignment Care Compare group NPD
• Endeavor Health Medical Group

  • Emergency Medicine Physician
  • Evanston, IL
  • NPI 1497701882

  Anesthesiology

  Medicare reassignment NPD
• Advocate Health and Hospitals Corporation

  • Multi-Specialty Clinic/Center
  • Oak Brook, IL
  • NPI 1700824455
  Medicare reassignment
• Advocate Health & Hospitals Corp.

  • Emergency Medicine Physician
  • Chicago, IL
  • NPI 1750315545
  NPD
• Advocate Health and Hospitals Corporation

  • Children's Hospital
  • Oak Lawn, IL
  • NPI 1508315516
  NPD
• Endeavor Health Medical Group

  • Anesthesiology Physician
  • Evanston, IL
  • NPI 1265695944
  NPD
• Northwestern Medical Faculty Foundation

  • Durable Medical Equipment & Medical Supplies
  • Chicago, IL
  • NPI 1417718479
  NPD
• Northwest Suburban Anesthesiologists LTD

  • Anesthesiology Physician
  • Arlington Heights, IL
  • NPI 1649211582
  NPD (past)

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

• Midwestern Regional Medical Center, Inc.

  • General Acute Care Hospital
  • Zion, IL
  • NPI 1811984388
  Care Compare affiliation

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

{
    "created_epoch": "1164931200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1772496000000",
    "number": "1245308022",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "925 SHERWOOD DR",
            "city": "LAKE BLUFF",
            "state": "IL",
            "postal_code": "600442203"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "800 W CENTRAL RD",
            "city": "ARLINGTON HEIGHTS",
            "state": "IL",
            "postal_code": "600052349",
            "telephone_number": "847-618-1000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1775 Dempster St",
            "address_purpose": "LOCATION",
            "city": "Park Ridge",
            "state": "IL",
            "postal_code": "600681143",
            "country_code": "US",
            "telephone_number": "847-723-2210",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "AHN",
        "first_name": "CATHERINE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-12-01",
        "last_updated": "2026-03-03",
        "certification_date": "2026-03-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "IL",
            "license": "036113618",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.667.2",
            "affiliationName": "Ability Network",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "CMS esMD eMDR",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "64 S Price Rd Ste B",
            "city": "Brownsville",
            "state": "TX",
            "country_code": "US",
            "postal_code": "785212459",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "cahn250886@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1775 Dempster St",
            "city": "Park Ridge",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600681143",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "1775 Dempster St",
            "city": "Park Ridge",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600681143",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Jennifer Ahmadian, M.D.
• Fiaz Ahmed, MD
• Nida Ahmed
• Syed Ahmed, MD
• Syed Javarea Ahmed
• Chong H. Ahn, MD
• Mohammad Ahsan, MD
• Karen Aicher, NP
• Aleena Aickareth, APN-CNP
• Aimes Group

• Anesthesiology Physician in Arlington Heights, IL
• Providers in Arlington Heights, IL by specialty
• Anesthesiology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 3, 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.