Mark Nagy Khalil, MD

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

345336 Issued in LA

Practice address

7777 Hennessy Blvd Ste 612
Baton Rouge, LA 70808-4366

Phone

(225) 769-5656

Fax

(225) 766-6996

NPI assigned

Mar 26, 2020

Last updated

Aug 14, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in LA

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

General Surgery

Education

University of South Carolina School of Medicine, Greenville, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Our Lady of the Lake Physician Group LLCGroup PAC ID 4587849781, 637 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Our Lady of the Lake Regional Medical Center Hospital, Baton Rouge, LA, CCN 190064

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Our Lady of the Lake Physician Group LLC

  • Internal Medicine Physician
  • Baton Rouge, LA
  • NPI 1033494943

  Surgery

  Medicare reassignment Care Compare group NPD
• Our Lady of the Lake Physician Group LLC

  dba Our Lady of the Lake Children's Health Developmental Center at McMains

  • Comprehensive Outpatient Rehabilitation Facility (CORF)
  • Baton Rouge, LA
  • NPI 1235912502
  NPD
• Our Lady of the Lake Physician Group LLC

  dba OLOL Physician Surgical Specialty

  • Hematology & Oncology Physician
  • Baton Rouge, LA
  • NPI 1184671455

  Surgery

  NPD (past)

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

• Our Lady of the Lake Hospital Inc.

  dba Our Lady of the Lake Regional Medical Center

  • General Acute Care Hospital
  • Baton Rouge, LA
  • NPI 1366436123
  Care Compare affiliation

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

{
    "created_epoch": "1585180800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1755129600000",
    "number": "1801423991",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5959 S SHERWOOD FOREST BLVD",
            "city": "BATON ROUGE",
            "state": "LA",
            "postal_code": "708166038",
            "telephone_number": "225-769-5656",
            "fax_number": "225-765-9196"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7777 HENNESSY BLVD STE 612",
            "city": "BATON ROUGE",
            "state": "LA",
            "postal_code": "708084366",
            "telephone_number": "225-769-5656",
            "fax_number": "225-766-6996"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "509 Biltmore Ave",
            "address_purpose": "LOCATION",
            "city": "Asheville",
            "state": "NC",
            "postal_code": "288014601",
            "country_code": "US",
            "telephone_number": "828-771-4229",
            "fax_number": "828-213-1448",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KHALIL",
        "first_name": "MARK",
        "middle_name": "NAGY",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-03-26",
        "last_updated": "2025-08-14",
        "certification_date": "2025-08-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": "NU",
            "license": null,
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "NC",
            "license": "2021-03440",
            "primary": false
        },
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "LA",
            "license": "345336",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mkhalil5340648@direct.casso.us.com",
            "affiliation": "N",
            "endpointDescription": "FMOLHS-Epic",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "mkhalil5340648@direct.casso.us.com",
            "address_1": "7777 Hennessy Blvd Ste 612",
            "city": "Baton Rouge",
            "state": "LA",
            "country_code": "US",
            "postal_code": "708084366",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0830.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "N",
            "endpointDescription": "FMOLHS FHIR URL",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "FHIR API",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "C-CDA",
            "address_1": "7777 Hennessy Blvd Ste 612",
            "city": "Baton Rouge",
            "state": "LA",
            "country_code": "US",
            "postal_code": "708084366",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

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• Surgery Physician in Baton Rouge, LA
• Providers in Baton Rouge, LA by specialty
• Surgery Physician in Louisiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 14, 2025; 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.