Sean Hattenbach, M.D.

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

R3098 Issued in TX

Practice address

1110 N Sarah Dewitt Dr
Gonzales, TX 78629-3311

Phone

(830) 672-8502

Fax

(830) 541-5557

NPI assigned

Apr 27, 2015

Last updated

May 11, 2026By the provider in NPPES

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

Electronic endpoints 1

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Family Practice

Education

Texas Tech University Health Science Center School of Medicine, 2015

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Gonzales Healthcare SystemsGroup PAC ID 8527963776, 35 clinicians

Community Health Centers of South Central Texas, Inc.Group PAC ID 4688650328, shared by 8 NPIs, 9 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Memorial Hospital Hospital, Gonzales, TX, CCN 450235
• The Heights of Gonzales Nursing home, Gonzales, TX, CCN 676138

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
• Direct secure messaging: mhgshattenbach@gonzhealthsys.cernerdirect.com

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.

• Gonzales Healthcare Systems

  dba Sievers Medical Clinic

  • Rural Health Clinic/Center
  • Gonzales, TX
  • NPI 1013916287

  Family Medicine

  Medicare reassignment Care Compare group NPD
• Gonzales Healthcare Systems

  dba Memorial Hospital

  • General Acute Care Hospital
  • Gonzales, TX
  • NPI 1508859612
  NPD
• Gonzales Healthcare Systems

  dba Gonzales Professional Partners

  • Diagnostic Radiology Physician
  • Gonzales, TX
  • NPI 1922856699
  NPD
• Community Health Centers of South Central Texas, Inc.

  • Federally Qualified Health Center (FQHC)
  • Gonzales, TX
  • NPI 1285650424
  NPD (past)
• Gonzales Healthcare Systems

  dba Memorial Hospital

  • Rural Acute Care Hospital
  • Gonzales, TX
  • NPI 1932108214
  NPD (past)

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

• Gonzales Healthcare Systems

  dba The Heights of Gonzales

  • Skilled Nursing Facility
  • Gonzales, TX
  • NPI 1710318316

  Nursing home

  Care Compare affiliation
• Gonzales Healthcare Systems

  dba Memorial Hospital

  • Rural Acute Care Hospital
  • Gonzales, TX
  • NPI 1932108214
  Care Compare affiliation

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

{
    "created_epoch": "1430092800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778457600000",
    "number": "1225415359",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1110 N SARAH DEWITT DR",
            "city": "GONZALES",
            "state": "TX",
            "postal_code": "786293311",
            "telephone_number": "830-672-8502",
            "fax_number": "830-541-5557"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1110 N SARAH DEWITT DR",
            "city": "GONZALES",
            "state": "TX",
            "postal_code": "786293311",
            "telephone_number": "830-672-8502",
            "fax_number": "830-541-5557"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "228 Saint George St",
            "address_purpose": "LOCATION",
            "city": "Gonzales",
            "state": "TX",
            "postal_code": "786293910",
            "country_code": "US",
            "telephone_number": "830-672-7581",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4206 Retama Cir",
            "address_purpose": "LOCATION",
            "city": "Victoria",
            "state": "TX",
            "postal_code": "779012757",
            "country_code": "US",
            "telephone_number": "361-576-2110",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HATTENBACH",
        "first_name": "SEAN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2015-04-27",
        "last_updated": "2026-05-11",
        "certification_date": "2026-05-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "TX",
            "license": "R3098",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "mhgshattenbach@gonzhealthsys.cernerdirect.com",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "contentType": "OTHER",
            "contentTypeDescription": "Other",
            "contentOtherDescription": "Micorsoft word",
            "address_1": "1110 N Sarah DeWitt Dr",
            "city": "Gonzales",
            "state": "TX",
            "country_code": "US",
            "postal_code": "786293311",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Grackle Psychiatry
• Cynthia K. Green, ED DIETITIAN
• Guadalupe County Hospital Board (Avir at Gonzales)
• H-E-B, LP (HEB Pharmacy #641)
• April Nicole Hall, FNP-C
• Gloria J Haug, DDS
• Shannon R Helmke, M.A., CCC-SLP
• Gary R. Heximer, D.C.
• Hill Country Nursing and Rehabilitation Center LTD
• Brittany Hill

• Family Medicine Physician in Gonzales, TX
• Providers in Gonzales, TX by specialty
• Family Medicine Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 11, 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.