Individual provider Active NPI

Mark Blackwelder, M.D.

  • Internal Medicine Physician
  • Ruston, LA
National Provider Identifier
1245200880
Registry record updated Oct 15, 2009
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
18456 Issued in LA
Practice address
1200 S Farmerville St
Ruston, LA 71270-5941
Phone
(318) 255-3690
NPI assigned
Jan 25, 2006
Last updated
Oct 15, 2009By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Oct 15, 2009

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 18456 LA Primary

Addresses

Primary practice location

1200 S Farmerville St
Ruston, LA 71270-5941

Mailing address

1200 S Farmerville St
Ruston, LA 71270-5941
Phone (318) 255-3690

Medicare participation

Medicare enrollment files
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

Enrollment IDStateProvider typePAC IDDetails
I20100303001150 LA Practitioner - Internal Medicine 0345320974 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Louisiana State University School of Medicine in Shreveport, 1985
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Green Clinic LLCGroup PAC ID 4789668831, 29 clinicians

Practice addresses (Care Compare)

1200 S Farmerville St
Ruston, LA 71270-5941
Phone (318) 255-3690

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
81.51 of 100Reported as apm
Quality
60.04
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
18456LAMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Green Clinic LLC CurrentSince Feb 1, 1990 Accepting new patients
CLHG-Ruston LLC CurrentSince Dec 1, 2025 Accepting new patients
Green Clinic LLC Internal Medicine CurrentSince Feb 1, 1990 Accepting new patients
CLHG-Ruston LLC CurrentSince Dec 1, 2025 Accepting new patients

Locations

1200 S Farmerville St
Ruston, LA 71270
Phone (318) 251-6103

401 E Vaughn Ave
Ruston, LA 71270
Phone (318) 254-2100

411 E Vaughn Ave
Ste 104
Ruston, LA 71270
Phone (318) 254-2453

Interoperability endpoints

  • Direct secure messaging: mark.blackwelder.1@26990.direct.athenahealth.com
  • Direct secure messaging: mark.blackwelder@gcmc.directbygreenway.com
  • Direct secure messaging: nlmmblack@yourcarecommunity.org

Organizations & group practices 5

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.

Hospital & facility affiliations 6

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": "1138147200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1255564800000",
    "number": "1245200880",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1200 S FARMERVILLE ST",
            "city": "RUSTON",
            "state": "LA",
            "postal_code": "712705941",
            "telephone_number": "318-255-3690"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1200 S FARMERVILLE ST",
            "city": "RUSTON",
            "state": "LA",
            "postal_code": "712705941",
            "telephone_number": "318-255-3690"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BLACKWELDER",
        "first_name": "MARK",
        "name_prefix": "Mr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-25",
        "last_updated": "2009-10-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "LA",
            "license": "18456",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ruston, LA

Sources for this page

Verify at the official NPI Registry.