Lambert Mark Laperouse Jr., M.D.

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

MD206052 Issued in LA

Practice address

7777 Hennessy Blvd
Baton Rouge, LA 70808-4300

Phone

(225) 765-7163

NPI assigned

May 29, 2007

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Other identifiers 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

Emergency MedicineAlso: Undersea and Hyperbaric Medicine

Education

Medical University of South Carolina College of Medicine, 2007

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Ascension Emergency Physicians, LLCGroup PAC ID 9739320029, 8 clinicians

Professional Emergency Physician Associates, LLCGroup PAC ID 1759317092, 78 clinicians

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

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 and National Provider Directory roles.

• Ascension Emergency Physicians LLC

  • Emergency Medicine Physician
  • Gonzales, LA
  • NPI 1699118505
  Medicare reassignment Care Compare group NPD
• Our Lady of the Lake Physician Group LLC

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

  Hospitalist

  Medicare reassignment Care Compare group NPD
• Professional Emergency Physician Associates, LLC

  • Emergency Medicine Physician
  • Baton Rouge, LA
  • NPI 1992758247
  Medicare reassignment Care Compare group NPD
• C & M Medical Services, Inc.

  • Emergency Medical Services (Emergency Medicine) Physician
  • Metairie, LA
  • NPI 1710903059
  Medicare reassignment NPD
• East Baton Rouge Emergency Physicians Group, LLC

  • Emergency Medicine Physician
  • Zachary, LA
  • NPI 1255894952
  Medicare reassignment NPD
• Professional Emergency Medicine Management -- Lake Charles LLC

  • Emergency Medicine Physician
  • Lake Charles, LA
  • NPI 1023430766
  Medicare reassignment NPD
• St Tammany Emergency Physicians Group LLC

  • Emergency Medicine Physician
  • Covington, LA
  • NPI 1891187654
  Medicare reassignment NPD
• Thibodaux Emergency Physicians Group LLC

  • Emergency Medicine Physician
  • Thibodaux, LA
  • NPI 1568910503
  Medicare reassignment NPD
• Washington Parish Emergency Physicians Group LLC

  • Emergency Medicine Physician
  • Bogalusa, LA
  • NPI 1538511043
  Medicare reassignment NPD
• Woman'S Assessment Center Physicians

  • Obstetrics & Gynecology Physician
  • Baton Rouge, LA
  • NPI 1205019908

  Emergency Medicine

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

  • Comprehensive Outpatient Rehabilitation Facility (CORF)
  • Baton Rouge, LA
  • NPI 1235912502
  NPD
• Riverside Emergency Physician Partners LLC

  • Emergency Medicine Physician
  • Lafayette, LA
  • NPI 1083107080
  NPD

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

• Our Lady of the Lake Hospital Inc.

  • 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": "1180396800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783382400000",
    "number": "1609077619",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 80093",
            "city": "BATON ROUGE",
            "state": "LA",
            "postal_code": "708980093",
            "telephone_number": "225-765-7163"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7777 HENNESSY BLVD",
            "city": "BATON ROUGE",
            "state": "LA",
            "postal_code": "708084300",
            "telephone_number": "225-765-7163"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "5439 Airline Hwy",
            "address_purpose": "LOCATION",
            "city": "Baton Rouge",
            "state": "LA",
            "postal_code": "708051712",
            "country_code": "US",
            "telephone_number": "225-358-4853",
            "fax_number": "225-358-2350",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LAPEROUSE",
        "first_name": "LAMBERT",
        "middle_name": "MARK",
        "name_prefix": "Dr.",
        "name_suffix": "Jr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-05-29",
        "last_updated": "2026-07-07",
        "certification_date": "2026-07-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "FL",
            "license": "TRN11194",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "LA",
            "license": "206052",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "LA",
            "license": "MD206052",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2350421",
            "state": "LA"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MCARE",
            "identifier": "P01207328",
            "state": "LA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Kaila Alexis Lanns
• Katherine Claire Lantier
• Madison Faia Lanza
• Sarah E Lanzetta
• Jacob Lape, PT, DPT
• Amelia Lapeyrouse, PLPC
• Hannah Lapeyrouse
• Alyissa Deshay Laphand
• Dayatra Laphand
• Roseanna Laporte, FNP-BC

• Emergency Medicine Physician in Baton Rouge, LA
• Providers in Baton Rouge, LA by specialty
• Emergency Medicine Physician in Louisiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 7, 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.