John Thomas Dugan III, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

Q7550 Issued in TX

Practice address

1213 Hermann Dr Ste 278
Houston, TX 77004-7009

Phone

(832) 707-5011

NPI assigned

Aug 1, 2012

Sex

Male

Sole proprietor

No

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: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Gastroenterology

Education

University of Texas Medical School at Houston, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Houston Regional Gastroenterology Institute PLLCGroup PAC ID 9436417672, 37 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Houston Methodist Hospital Hospital, Houston, TX, CCN 450358
• Houston Methodist West Hospital Hospital, Houston, TX, CCN 670077

Merit-based Incentive Payment System (MIPS)

Final score

75 of 100Reported as individual

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/17937/brand/1/csg/1/fhir/r4
• Direct secure messaging: john.dugan.1@17937.direct.athenahealth.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.

• Houston Regional Gastroenterology Institute PLLC

  • Gastroenterology Physician
  • Sugar Land, TX
  • NPI 1326587643

  Gastroenterology, TX

  Medicare reassignment Care Compare group NPD
• Norman B Frankel Et Al PTR Medical Clinic of Houston

  • Internal Medicine Physician
  • Houston, TX
  • NPI 1972539492

  Gastroenterology, TX

  Medicare reassignment NPD
• Norman B Frankel Et Al PTR Medical Clinic of Houston

  • Clinical Medical Laboratory
  • Houston, TX
  • NPI 1912165952
  NPD

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

• Methodist Health Centers

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1083937593

  Hospital

  Care Compare affiliation
• The Methodist Hospital

  • General Acute Care Hospital
  • Houston, TX
  • NPI 1548387418

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1343779200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770595200000",
    "number": "1154677755",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "15555 CREEK BEND DR STE 200",
            "city": "SUGAR LAND",
            "state": "TX",
            "postal_code": "774784670",
            "telephone_number": "832-707-5011"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1213 HERMANN DR STE 278",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770047009",
            "telephone_number": "832-707-5011"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DUGAN",
        "first_name": "JOHN",
        "middle_name": "THOMAS",
        "name_suffix": "III",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2012-08-01",
        "last_updated": "2026-02-09",
        "certification_date": "2026-02-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "TX",
            "license": "Q7550",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jennie Ann Ozog Duffy, MD
• Soledad Duffy, LAC
• Thomas Edward Dufilho, PHARM.D.
• Lance Dufrene
• Meredith Kate Dufrene, CRNA
• Daria Leigh Dugar, LPC
• Cyni Dugars Zacharie
• Janicia Unique Dugas, PH.D.
• Mark J Dugas, DO
• Tiffany Le'Shann Dugas, MD

• All providers in Houston, TX
• Gastroenterology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 9, 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.