Individual provider Active NPI

Gregory Paul Marks, MD

  • Otolaryngology Physician
  • New Orleans, LA
National Provider Identifier
1487113692
Registry record updated Aug 29, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Otolaryngology PhysicianTaxonomy code 207Y00000X
License
347996 Issued in LA
Practice address
533 Bolivar St Ste 566
New Orleans, LA 70112-1349
Phone
(504) 568-4785
NPI assigned
Mar 18, 2019
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 29, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Otolaryngology Physician 207Y00000X 347996 LA Primary

Addresses

Primary practice location

533 Bolivar St Ste 566
New Orleans, LA 70112-1349

Mailing address

533 Bolivar St Ste 566
New Orleans, LA 70112-1349
Phone (504) 568-4785

Other practice location 1

4950 Essen Ln Ste 400
Baton Rouge, LA 70809-3738
Phone (225) 765-1765

Other practice location 2

619 19th St S
Birmingham, AL 35233-1900
Phone (205) 934-4011

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in AL, LA2 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

Enrollment IDStateProvider typePAC IDDetails
I20240730002513 AL Practitioner - Otolaryngology 2466788617 Reassigns benefits to 1 organization
I20250919001922 LA Practitioner - Otolaryngology 2466788617 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Otolaryngology
Education
Louisiana State University School of Medicine in New Orleans, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

4950 Essen LN
Suite 400
Baton Rouge, LA 70809-3738
Phone (225) 765-1765

Hospital & facility affiliations

Procedures performed for Medicare patients

ProcedureNumber of procedures
Upper gastrointestinal (GI) endoscopy for acid reflux1-10
Melanoma (skin cancer) excision14
Removal of tissue1-10
Skin biopsy1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Our Lady of the Lake Physician Group LLC Otolaryngology Current Accepting new patients
Lsuhn Billing LLC CurrentSince Sep 1, 2025 Accepting new patients
Our Lady of the Lake Physician Group LLC CurrentSince Sep 1, 2025 Accepting new patients
Lsuhn Billing LLC CurrentSince Sep 1, 2025 Accepting new patients
University of Alabama Health Services Foundation, PC. CurrentSince Jul 1, 2024 Accepting new patients
Our Lady of the Lake Physician Group LLC Past Accepting new patients

Locations

619 19th St S
Birmingham, AL 35249

619 19th St S
Birmingham, AL 35233
Phone (205) 934-6405

720 39th St N
Birmingham, AL 35222

4950 Essen Ln
Ste 400
Baton Rouge, LA 70809
Phone (225) 765-1765

5959 S Sherwood Forest Blvd
Baton Rouge, LA 70816
Phone (225) 526-0011

9032 Perkins Rd
Baton Rouge, LA 70810
Phone (225) 358-4853

2390 W Congress St
Lafayette, LA 70506
Phone (337) 261-6000

533 Bolivar St
Ste 566
New Orleans, LA 70112
Phone (504) 427-5079

Interoperability endpoints

  • Direct secure messaging: gmarks111907@direct.casso.us.com

Organizations & group practices 6

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.

Hospital & facility affiliations 2

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

NPI Registry JSON

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

{
    "created_epoch": "1552867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756425600000",
    "number": "1487113692",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "533 BOLIVAR ST STE 566",
            "city": "NEW ORLEANS",
            "state": "LA",
            "postal_code": "701121349",
            "telephone_number": "504-568-4785"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "533 BOLIVAR ST STE 566",
            "city": "NEW ORLEANS",
            "state": "LA",
            "postal_code": "701121349",
            "telephone_number": "504-568-4785"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4950 Essen Ln Ste 400",
            "address_purpose": "LOCATION",
            "city": "Baton Rouge",
            "state": "LA",
            "postal_code": "708093738",
            "country_code": "US",
            "telephone_number": "225-765-1765",
            "fax_number": "225-765-1768",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "619 19th St S",
            "address_purpose": "LOCATION",
            "city": "Birmingham",
            "state": "AL",
            "postal_code": "352331900",
            "country_code": "US",
            "telephone_number": "205-934-4011",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MARKS",
        "first_name": "GREGORY",
        "middle_name": "PAUL",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-03-18",
        "last_updated": "2025-08-29",
        "certification_date": "2025-08-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207Y00000X",
            "taxonomy_group": "",
            "desc": "Otolaryngology",
            "state": "LA",
            "license": "347996",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in New Orleans, LA

Sources for this page

Verify at the official NPI Registry.