Hector Alejandro Preti, M.D.

Primary specialty

Hematology & Oncology PhysicianTaxonomy code 207RH0003X

License

103672-875 Issued in WI

Practice address

5841 S Maryland Ave
Chicago, IL 60637-1443

Phone

(773) 702-1000

NPI assigned

Aug 18, 2005

Reactivated

Jun 22, 2006

Last updated

May 20, 2026By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Other identifiers 1

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in IL, WI2 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

Hematology/Oncology

Education

Other, 1986

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Aurora Health Care Central, Inc.Group PAC ID 4688583677, 10 clinicians

University of ChicagoGroup PAC ID 7719899426, 1,674 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Presence Saint Joseph Hospital - Chicago Hospital, Chicago, IL, CCN 140224
• Aurora Medical Center Sheboygan County Hospital, Sheboygan, WI, CCN 520035

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: hpreti452792@direct.myadvocateaurora.org
• Direct secure messaging: hpreti26140@direct.houstonmethodist.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• University of Chicago

  • Multi-Specialty Clinic/Center
  • Chicago, IL
  • NPI 1821048786
  Medicare reassignment Care Compare group NPD
• Aurora Health Care Central, Inc.

  dba Aurora Medical Center Sheboygan County

  • General Acute Care Hospital
  • Sheboygan, WI
  • NPI 1922053107
  Medicare reassignment Care Compare group
• Physician Services Corporation of Southern Illinois Inc.

  dba SSM Health Medical Group

  • Internal Medicine Physician
  • Mount Vernon, IL
  • NPI 1831101807
  Medicare reassignment NPD
• The University of Chicago Medical Center

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1033218128
  Medicare reassignment NPD
• Aurora Medical Group, Inc.

  • Certified Registered Nurse Anesthetist
  • Milwaukee, WI
  • NPI 1427271378
  Medicare reassignment
• H Alejandro Preti MD PA

  dba H Alejandro Preti MD PA Phcy

  • Clinic Pharmacy
  • Houston, TX
  • NPI 1407955339
  NPD (past) Authorized official
• The University of Chicago Medical Center

  dba UCMC Pharmacy Services

  • Community/Retail Pharmacy
  • Calumet City, IL
  • NPI 1255895678
  NPD
• Hilo Benioff Medical Center

  • Anesthesiology Physician
  • Hilo, HI
  • NPI 1235981614
  NPD
• Hilo Benioff Medical Center

  • General Acute Care Hospital
  • Hilo, HI
  • NPI 1780757856
  NPD
• Hilo Benioff Medical Center

  • General Acute Care Hospital
  • Hilo, HI
  • NPI 1962584060
  NPD
• H.Alejandro Preti, M.D., P.a.Dba H.Alejandro Preti, M.D., P.a. Pharmac

  • Community/Retail Pharmacy
  • Houston, TX
  • NPI 1588672711
  NPD (past)

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

• Presence Chicago Hospitals Network

  dba Presence Saint Joseph Hospital-Chicago

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1679659585
  Care Compare affiliation
• Aurora Health Care Central, Inc.

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Sheboygan, WI
  • NPI 1902023955

  Hospital

  Care Compare affiliation
• Aurora Health Care Central, Inc.

  dba Aurora Medical Center Sheboygan County

  • General Acute Care Hospital
  • Sheboygan, WI
  • NPI 1922053107
  Care Compare affiliation

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

{
    "created_epoch": "1124323200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1779235200000",
    "number": "1861484628",
    "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",
            "telephone_number": "773-702-1061"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5841 S MARYLAND AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606371443",
            "telephone_number": "773-702-1000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1222 N 23rd St",
            "address_purpose": "LOCATION",
            "city": "Sheboygan",
            "state": "WI",
            "postal_code": "530813171",
            "country_code": "US",
            "telephone_number": "920-457-6800",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "PRETI",
        "first_name": "HECTOR",
        "middle_name": "ALEJANDRO",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-08-18",
        "last_updated": "2026-05-20",
        "certification_date": "2026-05-20",
        "deactivation_date": "2006-03-21",
        "reactivation_date": "2006-06-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "WI",
            "license": "103672-875",
            "primary": true
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "IL",
            "license": "036158567",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100413389",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "1222 N 23rd St",
            "city": "Sheboygan",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530813171",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "hpreti452792@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1222 N 23rd St",
            "city": "Sheboygan",
            "state": "WI",
            "country_code": "US",
            "postal_code": "530813171",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Helen Ann Preston
• Megan Presutti, DNP, CPNP-PC
• Grace Prete
• Martin F Prete, LCPC
• Victoria Irene Prete, MD
• Lauren Pretnar
• Pretty N Size LLC (Pretty N Size Bundles)
• Pretty Rad Therapy LLC
• Katelyn Prevenslik, DDS
• Prevention Incorporated

• Hematology & Oncology Physician in Chicago, IL
• Providers in Chicago, IL by specialty
• Hematology & Oncology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 20, 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.