Maryann Deleon, MD

Primary specialty

Hospitalist PhysicianTaxonomy code 208M00000X

License

036098323 Issued in IL

Practice address

777 Park Ave W
Highland Park, IL 60035-2433

Phone

(847) 926-5840

Fax

(847) 926-5835

NPI assigned

Oct 19, 2006

Last updated

Sep 14, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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 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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mdeleon10772@direct.northshore.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.

• Swedish Covenant Management Services, Inc.

  dba Swedish Covenant Medical Group

  • Obstetrics & Gynecology Physician
  • Chicago, IL
  • NPI 1760432348

  Pediatrics

  Medicare reassignment NPD
• Swedish Covenant Management Services, Inc

  dba Swedish Emergency Medicine

  • Emergency Medicine Physician
  • Chicago, IL
  • NPI 1962049551
  NPD

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

{
    "created_epoch": "1161216000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789344000000",
    "number": "1982786091",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2650 RIDGE AVE STE 1223",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602011700",
            "telephone_number": "847-570-2040",
            "fax_number": "847-733-5315"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "777 PARK AVE W",
            "city": "HIGHLAND PARK",
            "state": "IL",
            "postal_code": "600352433",
            "telephone_number": "847-926-5840",
            "fax_number": "847-926-5835"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DELEON",
        "first_name": "MARYANN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-10-19",
        "last_updated": "2026-09-14",
        "certification_date": "2026-09-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "IL",
            "license": "036098323",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "IL",
            "license": "036098323",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "IL STATE LIC",
            "identifier": "036098323",
            "state": "IL"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mdeleon10772@direct.northshore.org",
            "affiliation": "N",
            "address_1": "777 Park Ave W",
            "city": "Highland Park",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600352433",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Scott Murray Davis, M.D.
• Anna Dorota Day
• Erica Dayan, M.D.
• Sunshine Mary C De la Cruz, RN
• Kimberly Kay Dean, PTA
• Timothy C Dennis, MA
• David Joseph Derdiger, L.AC., MSOM
• James H. Desnick, M.D.
• Ellen Diamond, PSY. D.
• Lara Dilanjian, PHARM D

• Hospitalist Physician in Highland Park, IL
• Providers in Highland Park, IL by specialty
• Hospitalist Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 14, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.