Mark Stelle, APRN

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

1220613 Issued in TX

Practice address

1301 Wonder World Dr
San Marcos, TX 78666-7533

Phone

(512) 353-8979

NPI assigned

Dec 18, 2025

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 TX

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

Physicians UnityGroup PAC ID 6406014919, 61 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Christus Santa Rosa Hospital-San Marcos Hospital, San Marcos, TX, CCN 450272
• Guadalupe Regional Medical Center Hospital, Seguin, TX, CCN 450104

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

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.

• Physicians Unity

  • Family Medicine Physician
  • Lubbock, TX
  • NPI 1679878268
  Medicare reassignment Care Compare group NPD

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

• Christus Santa Rosa Health Care Corporation

  • General Acute Care Hospital
  • New Braunfels, TX
  • NPI 1114725033
  Care Compare affiliation
• Christus Santa Rosa Health Care Corporation

  • General Acute Care Hospital
  • San Marcos, TX
  • NPI 1447883301
  Care Compare affiliation
• Guadalupe County Hospital Board

  • Nursing Care Agency
  • Seguin, TX
  • NPI 1487674727

  Hospital

  Care Compare affiliation
• Guadalupe County Hospital Board

  • General Acute Care Hospital
  • Seguin, TX
  • NPI 1720088123
  Care Compare affiliation
• Guadalupe County Hospital Board

  • General Acute Care Hospital
  • Seguin, TX
  • NPI 1780529966
  Care Compare affiliation

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

{
    "created_epoch": "1766016000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769126400000",
    "number": "1699630996",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6607 BRODIE LN APT 816",
            "city": "AUSTIN",
            "state": "TX",
            "postal_code": "787454652",
            "telephone_number": "512-717-1617"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1301 WONDER WORLD DR",
            "city": "SAN MARCOS",
            "state": "TX",
            "postal_code": "786667533",
            "telephone_number": "512-353-8979"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "600 N Union Ave",
            "address_purpose": "LOCATION",
            "city": "New Braunfels",
            "state": "TX",
            "postal_code": "781304194",
            "country_code": "US",
            "telephone_number": "830-606-9111",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6607 Brodie Ln Apt 816",
            "address_purpose": "LOCATION",
            "city": "Austin",
            "state": "TX",
            "postal_code": "787454652",
            "country_code": "US",
            "telephone_number": "512-717-1617",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5224 75th St Ste D",
            "address_purpose": "LOCATION",
            "city": "Lubbock",
            "state": "TX",
            "postal_code": "794242525",
            "country_code": "US",
            "telephone_number": "806-712-1096",
            "fax_number": "806-771-2093",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "STELLE",
        "first_name": "MARK",
        "credential": "APRN",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-12-18",
        "last_updated": "2026-01-23",
        "certification_date": "2026-01-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "TX",
            "license": "1220613",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• STC Emergency Physicians PA
• STC Operations LLC
• Erica L Steele, LM, CPM
• Linda Lou Steele, RNCWHNP
• Christopher Stehle, PT, DPT
• Stephen L. Stanfield
• Kylie Angelique Stermer, RBT
• Tonya K Stevens, PT
• Shelby Stipp
• Lori Lynn Stiritz, MA CCCA

• Family Nurse Practitioner in San Marcos, TX
• Providers in San Marcos, TX by specialty
• Family Nurse Practitioner in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 23, 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.