Julia Anne Leo, D.O.

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

53753-21 Issued in WI

Practice address

2801 W Kinnickinnic River Pkwy Ste 1080
Milwaukee, WI 53215-3689

Phone

(414) 908-6500

Fax

(414) 908-6565

NPI assigned

Jun 2, 2008

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

Medicare fee-for-service enrollment

Enrolled in WI

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

GastroenterologyAlso: Internal Medicine

Education

Other, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Gi Associates LLCGroup PAC ID 6103738562, 55 clinicians

Ascension Medical Group-Southeast Wisconsin IncGroup PAC ID 8628980943, 551 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Ascension SE Wisconsin Hospital Hospital, Milwaukee, WI, CCN 520136
• Aurora St Lukes Medical Center Hospital, Milwaukee, WI, CCN 520138
• Ascension St Francis Hospital Hospital, Milwaukee, WI, CCN 520078
• West Allis Memorial Hospital Hospital, West Allis, WI, CCN 520139

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy, Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Ascension Medical Group-Southeast Wisconsin Inc

  • Internal Medicine Physician
  • Glendale, WI
  • NPI 1609881077
  Medicare reassignment Care Compare group NPD
• Gi Associates LLC

  • Gastroenterology Physician
  • Milwaukee, WI
  • NPI 1801863501
  Medicare reassignment Care Compare group NPD
• Aurora Medical Group, Inc.

  • Certified Registered Nurse Anesthetist
  • Milwaukee, WI
  • NPI 1427271378
  Medicare reassignment NPD
• Gastroenterology Consultants, LTD

  • Gastroenterology Physician
  • Milwaukee, WI
  • NPI 1730608324
  Medicare reassignment NPD
• Aurora Medical Group, Inc.

  • Durable Medical Equipment & Medical Supplies
  • Oshkosh, WI
  • NPI 1326858044
  NPD
• Ascension All Saints Hospital, Inc

  • Rehabilitation Hospital Unit
  • Racine, WI
  • NPI 1417966540
  NPD (past)

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

• Ascension SE Wisconsin Hospital, Inc

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1427007384
  Care Compare affiliation
• Ascension SE Wisconsin Hospital, Inc

  • Rehabilitation Hospital Unit
  • Brookfield, WI
  • NPI 1861417362
  Care Compare affiliation
• Ascension St Francis Hospital, Inc

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1225087190
  Care Compare affiliation
• Aurora Health Care Metro, Inc.

  • Mental Health Clinic/Center (Including Community Mental Health Center)
  • Cudahy, WI
  • NPI 1235355983

  Hospital

  Care Compare affiliation
• Aurora Health Care Metro, Inc.

  • General Acute Care Hospital
  • Milwaukee, WI
  • NPI 1861447179
  Care Compare affiliation
• West Allis Memorial Hospital, Inc.

  • Clinic/Center
  • West Allis, WI
  • NPI 1235345695

  Hospital

  Care Compare affiliation
• West Allis Memorial Hospital, Inc.

  • General Acute Care Hospital
  • West Allis, WI
  • NPI 1407801640
  Care Compare affiliation

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

{
    "created_epoch": "1212364800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769385600000",
    "number": "1891953295",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2801 W KINNICKINNIC RIVER PKWY STE 1080",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532153689",
            "telephone_number": "414-908-6506",
            "fax_number": "414-908-6510"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2801 W KINNICKINNIC RIVER PKWY STE 1080",
            "city": "MILWAUKEE",
            "state": "WI",
            "postal_code": "532153689",
            "telephone_number": "414-908-6500",
            "fax_number": "414-908-6565"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LEO",
        "first_name": "JULIA",
        "middle_name": "ANNE",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-06-02",
        "last_updated": "2026-01-26",
        "certification_date": "2026-01-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "WI",
            "license": "53753-21",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Rachel Ann Lentz, MS OTR
• Kylie Lenz, PAC
• Timothy John Lenz
• Troy T Lenz
• Gary J Leo, D.O
• Peter D Leo, PHD
• Jorge Enrique Leon Colonna, M.D.
• Caroline Leon, FNP
• Alexis N Leonard, APSW
• Jennifer Lynn Leonard, AGNP-C

• Gastroenterology Physician in Milwaukee, WI
• Providers in Milwaukee, WI by specialty
• Gastroenterology Physician in Wisconsin

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 26, 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.