NPIMap

Individual provider Active NPI

Katelyn S Johnston, CRNA

  • Certified Registered Nurse Anesthetist
  • Ocean Springs, MS
National Provider Identifier
1669965505
Registry record updated Jul 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Certified Registered Nurse AnesthetistTaxonomy code 367500000X
License
42572 Issued in TN
Practice address
3109 Bienville Blvd
Ocean Springs, MS 39564-4361
Phone
(228) 818-1111
NPI assigned
Jun 13, 2018
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 21, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Certified Registered Nurse Anesthetist 367500000X 901511 MS
Certified Registered Nurse Anesthetist 367500000X 42572 TN Primary

Addresses

Primary practice location

3109 Bienville Blvd
Ocean Springs, MS 39564-4361

Mailing address

4500 13TH St
Gulfport, MS 39501-2515
Phone (228) 575-2902

Other practice location 1

4500 13th St
Gulfport, MS 39501-2515
Phone (228) 865-3281

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MS, AL2 enrollments

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20180709000684 MS Practitioner - Certified Registered Nurse Anesthetist (Crna) 9335495258 Reassigns benefits to 6 organizations
I20240723002856 AL Practitioner - Certified Registered Nurse Anesthetist (Crna) 9335495258 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Certified Registered Nurse Anesthetist (Crna)
Education
Other, 2018
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Etas PLLCGroup PAC ID 8123481934, 43 clinicians

Practice addresses (Care Compare)

4500 13TH St
Gulfport, MS 39501-2515
Phone (228) 867-4000

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Certified Registered Nurse

State licenses

LicenseStateTypeSpecialty
901511MSMDFamily Nurse Practitioner

Practice roles

OrganizationSpecialtyStatusNew patients
Best Anesthesia, PLLC CurrentSince Jun 28, 2025 Accepting new patients
Singing River Gulfport CurrentSince Aug 10, 2021 Accepting new patients
USA Health Anesthesia Billing Services, LLC Nurse Anesthetist, Certified Registered CurrentSince May 9, 2024 Accepting new patients
Hogan Surgical Center PA CurrentSince Jan 31, 2019 Accepting new patients
Etas, PLLC CurrentSince Feb 7, 2025 Accepting new patients
Singing River Health System CurrentSince Jan 15, 2019 Accepting new patients
Memorial Hospital at Gulfport Current Accepting new patients
Memorial Hospital at Gulfport CurrentSince Jun 2, 2025 Accepting new patients
Hogan Surgical Center, P. a. - Crna Services Nurse Anesthetist, Certified Registered CurrentSince Jan 31, 2019 Accepting new patients

Locations

2451 Fillingim St
Mobile, AL 36617
Phone (251) 434-3711

1700 Center St
Mobile, AL 36604
Phone (251) 415-1000

7956 Vaughn Rd
Ste 165
Montgomery, AL 36116

150 Reynoir St
Biloxi, MS 39530
Phone (228) 432-7817

4500 13th St
Fl 2
Gulfport, MS 39501
Phone (228) 865-3281

4500 13th St
Gulfport, MS 39501
Phone (228) 236-3872

351 Cowan Rd
Gulfport, MS 39507
Phone (228) 896-1120

350 Cowan Rd
Gulfport, MS 39507
Phone (228) 206-7054

1340 Broad Ave
Ste 440
Gulfport, MS 39501
Phone (228) 867-4856

3109 Bienville Blvd
Ocean Springs, MS 39564
Phone (228) 818-1100

2809 Denny Ave
Pascagoula, MS 39581
Phone (228) 809-5000

Organizations & group practices 10

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 60

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

View all 60

NPI Registry JSON

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

{
    "created_epoch": "1528848000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784592000000",
    "number": "1669965505",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4500 13TH ST",
            "city": "GULFPORT",
            "state": "MS",
            "postal_code": "395012515",
            "telephone_number": "228-575-2902",
            "fax_number": "228-575-2917"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3109 BIENVILLE BLVD",
            "city": "OCEAN SPRINGS",
            "state": "MS",
            "postal_code": "395644361",
            "telephone_number": "228-818-1111"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4500 13th St",
            "address_purpose": "LOCATION",
            "city": "Gulfport",
            "state": "MS",
            "postal_code": "395012515",
            "country_code": "US",
            "telephone_number": "228-865-3281",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "JOHNSTON",
        "first_name": "KATELYN",
        "middle_name": "S",
        "name_prefix": "Dr.",
        "credential": "CRNA",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2018-06-13",
        "last_updated": "2026-07-21",
        "certification_date": "2026-07-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "MS",
            "license": "901511",
            "primary": false
        },
        {
            "code": "367500000X",
            "taxonomy_group": "",
            "desc": "Nurse Anesthetist, Certified Registered",
            "state": "TN",
            "license": "42572",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ocean Springs, MS

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 21, 2026; 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.