Julia Diaz, APRN

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

94081 Issued in OK

Practice address

2011 W Broadway Ave
Sulphur, OK 73086-4221

Phone

(580) 622-4482

Fax

(580) 297-9113

NPI assigned

Oct 20, 2015

Last updated

Oct 13, 2026By the provider in NPPES

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

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, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Arbuckle Memorial HospitalGroup PAC ID 0840104956, shared by 3 NPIs, 9 clinicians

Mercy Clinic Oklahoma CommunitiesGroup PAC ID 1153468921, 645 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Lifespring Home Care Home health agency, Pauls Valley, OK, CCN 377757
• Arbuckle Memorial Hospital Authority Hospital, Sulphur, OK, CCN 371328
• Mercy Hospital Ardmore, Inc Hospital, Ardmore, OK, CCN 370047
• Mercy Hospital Ada Hospital, Ada, OK, CCN 370020

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jdiaz19826@directc.mercy.net

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.

• Mercy Clinic Oklahoma Communities

  • Family Medicine Physician
  • Oklahoma City, OK
  • NPI 1386874550
  Medicare reassignment Care Compare group NPD
• Arbuckle Memorial Hospital

  • Critical Access Hospital
  • Sulphur, OK
  • NPI 1700869492
  Medicare reassignment NPD
• Arbuckle Memorial Hospital

  dba Arbuckle Family Clinic

  • Rural Health Clinic/Center
  • Sulphur, OK
  • NPI 1730541673
  Medicare reassignment NPD
• Arbuckle Memorial Hospital

  dba Arbuckle Family Clinic at Davis

  • Rural Health Clinic/Center
  • Davis, OK
  • NPI 1821972076
  NPD

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

• Arbuckle Memorial Hospital

  • Critical Access Hospital
  • Sulphur, OK
  • NPI 1700869492
  Care Compare affiliation
• Legacy Homecare Associates, LLC

  dba LifeSpring Home Care

  • Home Health Agency
  • Pauls Valley, OK
  • NPI 1730488131
  Care Compare affiliation
• Mercy Hospital Ada, Inc

  • Ambulance
  • Ada, OK
  • NPI 1831533728

  Hospital

  Care Compare affiliation
• Mercy Hospital Ada, Inc

  dba Mercy Hospital Ada

  • General Acute Care Hospital
  • Ada, OK
  • NPI 1952643306
  Care Compare affiliation
• Mercy Hospital Ardmore, Inc.

  • General Acute Care Hospital
  • Ardmore, OK
  • NPI 1386741635
  Care Compare affiliation

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

{
    "created_epoch": "1445299200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1791849600000",
    "number": "1538531306",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 1109",
            "city": "SULPHUR",
            "state": "OK",
            "postal_code": "730868109",
            "telephone_number": "580-622-4482",
            "fax_number": "580-297-9113"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2011 W BROADWAY AVE",
            "city": "SULPHUR",
            "state": "OK",
            "postal_code": "730864221",
            "telephone_number": "580-622-4482",
            "fax_number": "580-297-9113"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "210 S. Dean McGee Ave. Ste. 1",
            "address_purpose": "LOCATION",
            "city": "Wynnewood",
            "state": "OK",
            "postal_code": "730987810",
            "country_code": "US",
            "telephone_number": "405-665-0503",
            "fax_number": "405-907-2487",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "JULIA",
        "credential": "APRN",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2015-10-20",
        "last_updated": "2026-10-13",
        "certification_date": "2026-10-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "OK",
            "license": "94081",
            "primary": true
        },
        {
            "code": "163W00000X",
            "taxonomy_group": "",
            "desc": "Registered Nurse",
            "state": "OK",
            "license": "90481",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Family Nurse Practitioner in Sulphur, OK
• Providers in Sulphur, OK by specialty
• Family Nurse Practitioner in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 13, 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.