Melissa Islas

Primary specialty

Acute Care Nurse PractitionerTaxonomy code 363LA2100X

License

219615 Issued in OK

Practice address

1120 S Utica Ave
Tulsa, OK 74104-4012

Phone

(918) 592-0999

NPI assigned

Aug 1, 2024

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

Nurse Practitioner

Education

Other, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Ahs Oklahoma Heart LLCGroup PAC ID 4587737135, 130 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hillcrest Medical Center Hospital, Tulsa, OK, CCN 370001
• Hillcrest Hospital South Hospital, Tulsa, OK, CCN 370202

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mislas174991@ahs.direct-ci.com

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.

• Ahs Oklahoma Heart LLC

  dba Oklahoma Heart Institute

  • Specialist
  • Tulsa, OK
  • NPI 1780857540
  Medicare reassignment Care Compare group NPD
• St. John Physicians, Inc.

  • Internal Medicine Physician
  • Tulsa, OK
  • NPI 1336194406
  Medicare reassignment
• Integris Cardiovascular Physicians LLC

  • Cardiovascular Disease Physician
  • Oklahoma City, OK
  • NPI 1306129598
  NPD (past)

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

• Ahs Hillcrest Medical Center, LLC

  dba Hillcrest Medical Center

  • General Acute Care Hospital
  • Tulsa, OK
  • NPI 1629057229
  Care Compare affiliation
• Ahs Southcrest Hospital, LLC

  dba HIllcrest Hospital South

  • General Acute Care Hospital
  • Tulsa, OK
  • NPI 1750661534
  Care Compare affiliation

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

{
    "created_epoch": "1722470400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776384000000",
    "number": "1003645409",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1923 S UTICA AVE",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741046520"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1120 S UTICA AVE",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741044012",
            "telephone_number": "918-592-0999"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1923 S Utica Ave",
            "address_purpose": "LOCATION",
            "city": "Tulsa",
            "state": "OK",
            "postal_code": "741046520",
            "country_code": "US",
            "telephone_number": "918-744-3131",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ISLAS",
        "first_name": "MELISSA",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2024-08-01",
        "last_updated": "2026-04-17",
        "certification_date": "2026-04-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2100X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Acute Care",
            "state": "OK",
            "license": "219615",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jeffery Don Isenberg
• Jonathan Isenberg, DO
• Douglas Isgrigg, CFA
• Allison Iski, DPM
• Missy Behrents Iski, MA LPC LMFT
• Aaron Isley, D.O.
• Kaitlin Ailene Isley, D.O.
• Samson Olatunji Isola, DPT
• Patrice Marie Isom-Alston
• Jessica Isom

• Acute Care Nurse Practitioner in Tulsa, OK
• Providers in Tulsa, OK by specialty
• Acute Care Nurse Practitioner in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 17, 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.