Donald Tanis, M.D.

Primary specialty

Adult Congenital Heart Disease PhysicianTaxonomy code 207RA0002X

License

036083772 Issued in IL

Practice address

1725 W Harrison St
Suite 1159
Chicago, IL 60612-3841

Phone

(312) 942-5020

Fax

(312) 942-4039

NPI assigned

Jul 14, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Electronic endpoints 1

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

Interventional CardiologyAlso: Cardiovascular Disease (Cardiology)

Education

Other, 1985

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Loyola University Medical CenterGroup PAC ID 3779488903, 917 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Loyola Gottlieb Memorial Hospital Hospital, Melrose Park, IL, CCN 140008
• Loyola University Medical Center Hospital, Maywood, IL, CCN 140276

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: donald.tanis.1@3547.direct.athenahealth.com
• Direct secure messaging: dtanis5918@direct.rush.rush-health.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.

• Loyola University Medical Center

  • General Practice Physician
  • Maywood, IL
  • NPI 1336159961

  IL

  Medicare reassignment Care Compare group NPD
• Rush University Medical Group

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1093819542

  IL

  Medicare reassignment NPD
• Loyola University Medical Center

  • Community/Retail Pharmacy
  • Maywood, IL
  • NPI 1184789299
  Care Compare group NPD
• Loyola University Medical Center

  • General Acute Care Hospital
  • Maywood, IL
  • NPI 1376521575
  Care Compare group NPD
• Loyola University Medical Center

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Maywood, IL
  • NPI 1063504165
  Care Compare group
• Loyola University Medical Center

  • Community/Retail Pharmacy
  • Maywood, IL
  • NPI 1104462126
  Care Compare group
• Loyola University Medical Center

  • Home Infusion Therapy Pharmacy
  • Hickory Hills, IL
  • NPI 1386785152
  Care Compare group
• Loyola University Medical Center

  • Durable Medical Equipment & Medical Supplies
  • Maywood, IL
  • NPI 1912042029
  Care Compare group
• Rush University Medical Center

  • Internal Medicine Physician
  • Chicago, IL
  • NPI 1689165540

  Cardiovascular Disease

  NPD

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

• Gottlieb Memorial Hospital

  • General Acute Care Hospital
  • Melrose Park, IL
  • NPI 1831170232

  Hospital

  Care Compare affiliation
• Loyola University Medical Center

  • General Acute Care Hospital
  • Maywood, IL
  • NPI 1376521575

  Hospital

  Care Compare affiliation
• Loyola University Medical Center

  • General Acute Care Hospital
  • Tinley Park, IL
  • NPI 1427752013

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1152835200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776816000000",
    "number": "1902822158",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1725 W HARRISON ST",
            "address_2": "SUITE 1159",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123841",
            "telephone_number": "312-942-5020",
            "fax_number": "312-942-4039"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1725 W HARRISON ST",
            "address_2": "SUITE 1159",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123841",
            "telephone_number": "312-942-5020",
            "fax_number": "312-942-4039"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TANIS",
        "first_name": "DONALD",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-14",
        "last_updated": "2026-04-22",
        "certification_date": "2026-04-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "IL",
            "license": "036-083772",
            "primary": false
        },
        {
            "code": "207RA0002X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Adult Congenital Heart Disease",
            "state": "IL",
            "license": "036083772",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "dtanis234628@direct.luhs.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1725 W Harrison St",
            "address_2": "Suite 1159",
            "city": "Chicago",
            "state": "IL",
            "country_code": "US",
            "postal_code": "606123841",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Casey Tangonan
• Francesco Tani
• Tania Rebeiz
• Alex Garo Tanielian, DDS
• Michael Tanious
• Kaylee Lynne Tanjic, LCSW
• Laurel B Tanke, MD
• Samantha Miriam Tankenoff, LMFT
• Naomi Tankersley
• Ma Luisa Nyree Tang Tankiang, PT

• All providers in Chicago, IL
• Adult Congenital Heart Disease Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 22, 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.