Roy Steven Johnson, CRNA

Primary specialty

Certified Registered Nurse AnesthetistTaxonomy code 367500000X

License

035542 Issued in LA

Practice address

1102 N Pine Rd
Olla, LA 71465-4804

Phone

(318) 495-3131

Fax

(318) 495-0749

NPI assigned

Nov 2, 2005

Last updated

Nov 24, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in LA

Enrollment records 1

Specialty

Certified Registered Nurse Anesthetist (Crna)

Education

Other, 1983

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Lasalle Parish Hospital Service Dist No1Group PAC ID 6709781545, 22 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hardtner Medical Center Hospital, Olla, LA, CCN 191315

Medicare enrollment (NPD)

Enrolled

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.

• Lasalle Parish Hospital Service Dist No1

  dba Hardtner Medical Center

  • Critical Access Hospital
  • Olla, LA
  • NPI 1639263189
  Medicare reassignment Care Compare group NPD
• Lasalle Parish Hospital Service District #1

  dba Hardtner Medical Center

  • Critical Access Hospital
  • Olla, LA
  • NPI 1184815466
  Medicare reassignment
• Lasalle Hospital Service Dist #1

  dba Hardtner Medical Center

  • Critical Access Hospital
  • Olla, LA
  • NPI 1871621821
  NPD (past)
• Melanie C. Firmin, MD Apmc

  • Interventional Pain Medicine Physician
  • Alexandria, LA
  • NPI 1760598726
  NPD (past)

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

• Lasalle Parish Hospital Service Dist No1

  dba Hardtner Medical Center

  • Critical Access Hospital
  • Olla, LA
  • NPI 1639263189
  Care Compare affiliation

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

{
    "created_epoch": "1130889600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1763942400000",
    "number": "1962493601",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "148 RONALD BLVD",
            "city": "LAFAYETTE",
            "state": "LA",
            "postal_code": "705032738",
            "telephone_number": "337-852-3160"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1102 N PINE RD",
            "city": "OLLA",
            "state": "LA",
            "postal_code": "714654804",
            "telephone_number": "318-495-3131",
            "fax_number": "318-495-0749"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "JOHNSON",
        "first_name": "ROY",
        "middle_name": "STEVEN",
        "name_prefix": "Mr.",
        "credential": "CRNA",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-11-02",
        "last_updated": "2025-11-24",
        "certification_date": "2025-11-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "LA",
            "license": "035542",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Hardtner Medical Center
• Hardtner Medical Center
• Hardtner Medical Center
• Tyler Kennedy Hinson, MD
• Carli Prudhomme Johnson, M.S., CCC-SLP
• Kenneth P. Mauterer MD a Medical Corp
• Lasalle Hospital Service Dist #1 (Hardtner Medical Center)
• Lasalle Hospital Service District #1 (Hardtner Medical Center)
• Lasalle Parish Hospital Service Dist No1 (Hardtner Medical Center)
• Lasalle Parish Hospital Service District #1 (Hardtner Medical Clinic)

• Certified Registered Nurse Anesthetist in Olla, LA
• Providers in Olla, LA by specialty
• Certified Registered Nurse Anesthetist in Louisiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 24, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.