Haley Sims, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

5284 Issued in OK

Practice address

1 E Clark Bass Blvd
McAlester, OK 74501-4209

Phone

(918) 426-1800

NPI assigned

Jan 8, 2017

Sex

Female

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 OK

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2022

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

McAlester Medical Services LLCGroup PAC ID 9931139029, 21 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• McAlester Regional Health Center Hospital, McAlester, OK, CCN 370034

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

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.

• McAlester Medical Services, LLC

  • Internal Medicine Physician
  • McAlester, OK
  • NPI 1154317998

  Single Specialty

  Medicare reassignment Care Compare group NPD

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

• McAlester Regional Health Center Authority

  • Rural Acute Care Hospital
  • McAlester, OK
  • NPI 1316940034
  Care Compare affiliation

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

{
    "created_epoch": "1483833600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769731200000",
    "number": "1326584855",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1270 S BUFFALO RD",
            "city": "STUART",
            "state": "OK",
            "postal_code": "745705214",
            "telephone_number": "214-264-9210"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 E CLARK BASS BLVD",
            "city": "MCALESTER",
            "state": "OK",
            "postal_code": "745014209",
            "telephone_number": "918-426-1800"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIMS",
        "first_name": "HALEY",
        "credential": "PA-C",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2017-01-08",
        "last_updated": "2026-01-30",
        "certification_date": "2026-01-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Physician Assistant",
            "state": "OK",
            "license": "5284",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Keylee James Siers, PTA
• Signature Fitness
• Rachel Renee Simmers, M.S. CCC-SLP
• Deloris J Simmons
• Anita Simpson
• Sarah Beth Singer
• Aimee Sinor
• Karen A Siren, MD
• Lori A Sisson
• Cathryne Sue Sizemore, M.S.H.R., C.M.

• Physician Assistant in McAlester, OK
• Providers in McAlester, OK by specialty
• Physician Assistant in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 30, 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.