Houston Regional Gastroenterology Institute PLLC

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

P9555 Issued in TX

Legal business name

HOUSTON REGIONAL GASTROENTEROLOGY INSTITUTE PLLC

Doing business as

American Gastro Health

Practice address

15555 Creek Bend Dr Ste 200
Sugar Land, TX 77478-4670

Phone

(832) 707-5011

NPI assigned

Feb 20, 2017

Last updated

Jun 17, 2026By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Adeeb Dwairy, M.D.NPI 1679826929

Title

Member

Phone

(281) 731-0619

Specialties & licenses 2

Addresses

Other names 1

• American Gastro Health Doing business as

Medicare fee-for-service enrollment

Enrolled in TX

Enrollment records 1

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/17937/brand/1/csg/1/fhir/r4

Practitioners 60

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Adeeb Jay Dwairy, MD

  • Gastroenterology Physician
  • Sugar Land, TX
  • NPI 1679826929
  Medicare reassignment Care Compare group NPD Authorized official
• Shaadi John Abughazaleh

  • Gastroenterology Physician
  • Sugar Land, TX
  • NPI 1487159984
  Medicare reassignment Care Compare group NPD
• Babatunde Olufemi Adeyefa, M.D.

  • Gastroenterology Physician
  • Houston, TX
  • NPI 1699940528
  Medicare reassignment Care Compare group NPD
• Nancy Aguilera

  • Family Nurse Practitioner
  • Houston, TX
  • NPI 1528631181
  Medicare reassignment Care Compare group NPD
• Agnes Asamah, FNP-C

  • Nurse Practitioner
  • Houston, TX
  • NPI 1336618511
  Medicare reassignment Care Compare group NPD
• Vanitha Bala, M.D.

  • Gastroenterology Physician
  • Shenandoah, TX
  • NPI 1386662351
  Medicare reassignment Care Compare group NPD
• Ryan R Barrientos, MD

  • Gastroenterology Physician
  • Houston, TX
  • NPI 1982975405
  Medicare reassignment Care Compare group NPD
• Daniel Burkholder, MD

  • Gastroenterology Physician
  • Houston, TX
  • NPI 1871153981
  Medicare reassignment Care Compare group NPD
• Abraham Chacko, D.O.

  • Gastroenterology Physician
  • Sugar Land, TX
  • NPI 1902117773
  Medicare reassignment Care Compare group NPD
• Concepcion Delos Reyes

  • Family Nurse Practitioner
  • Plano, TX
  • NPI 1154854214
  Medicare reassignment Care Compare group NPD
• John Thomas Dugan III, MD

  • Gastroenterology Physician
  • Houston, TX
  • NPI 1154677755
  Medicare reassignment Care Compare group NPD
• Georg Elias, M.D

  • Gastroenterology Physician
  • Kingwood, TX
  • NPI 1952542680
  Medicare reassignment Care Compare group NPD

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

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    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1781654400000",
    "number": "1326587643",
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        {
            "country_code": "US",
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            "address_1": "15555 CREEK BEND DR STE 200",
            "city": "SUGAR LAND",
            "state": "TX",
            "postal_code": "774784670"
        },
        {
            "country_code": "US",
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        }
    ],
    "practiceLocations": [
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            "address_1": "17510 W Grand Pkwy S Ste 220",
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            "telephone_number": "281-201-1338",
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        },
        {
            "address_1": "219 Oak Dr S Ste A",
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            "city": "Lake Jackson",
            "state": "TX",
            "postal_code": "775665675",
            "country_code": "US",
            "telephone_number": "979-297-4033",
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        },
        {
            "address_1": "284 Ed English Dr Ste A",
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        {
            "address_1": "10425 Huffmeister Rd Ste 200",
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        {
            "address_1": "21814 Katy Fwy Ste 220",
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            "country_name": "United States",
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        {
            "address_1": "920 Medical Plaza Dr Ste 550",
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            "country_code": "US",
            "telephone_number": "281-440-0101",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "18955 N Memorial Dr Ste 500",
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            "postal_code": "773384399",
            "country_code": "US",
            "telephone_number": "281-440-0101",
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        {
            "address_1": "19701 Kingwood Dr Bldg 2",
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        {
            "address_1": "9816 Memorial Blvd Ste 206",
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            "country_code": "US",
            "telephone_number": "281-446-8114",
            "country_name": "United States",
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        },
        {
            "address_1": "275 Lantern Bend Dr Ste 200",
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            "state": "TX",
            "postal_code": "770902842",
            "country_code": "US",
            "telephone_number": "281-440-0101",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "16902 Southwest Fwy Ste 108",
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            "state": "TX",
            "postal_code": "774793574",
            "country_code": "US",
            "telephone_number": "832-707-5011",
            "fax_number": "281-612-1992",
            "country_name": "United States",
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        {
            "address_1": "24044 Highway 59 N",
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            "postal_code": "773391500",
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            "telephone_number": "281-501-5652",
            "country_name": "United States",
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        },
        {
            "address_1": "25230 Kingsland Blvd Ste 102",
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            "country_code": "US",
            "telephone_number": "281-869-3009",
            "country_name": "United States",
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        },
        {
            "address_1": "1631 North Loop W Ste 510",
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            "postal_code": "770081531",
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            "telephone_number": "713-777-2555",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "6550 Fannin St Ste 2301",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770302723",
            "country_code": "US",
            "telephone_number": "713-777-2555",
            "country_name": "United States",
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        {
            "address_1": "24510 Kingsland Blvd",
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            "telephone_number": "832-707-5011",
            "country_name": "United States",
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        {
            "address_1": "9731 Wortham Blvd Ste 104",
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            "telephone_number": "832-707-5011",
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        {
            "address_1": "21212 Northwest Fwy Ste 425A",
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        {
            "address_1": "1213 Hermann Dr Ste 278",
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        },
        {
            "address_1": "1240 Blalock Rd Ste 210",
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            "state": "TX",
            "postal_code": "770556445",
            "country_code": "US",
            "telephone_number": "281-869-3009",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "7737 Southwest Fwy Ste 840",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770741819",
            "country_code": "US",
            "telephone_number": "713-777-2555",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "2647 Cordes Dr",
            "address_purpose": "LOCATION",
            "city": "Sugar Land",
            "state": "TX",
            "postal_code": "774791353",
            "country_code": "US",
            "telephone_number": "832-707-5011",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "HOUSTON REGIONAL GASTROENTEROLOGY INSTITUTE PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2017-02-20",
        "last_updated": "2026-06-17",
        "certification_date": "2026-06-17",
        "status": "A",
        "authorized_official_last_name": "DWAIRY",
        "authorized_official_first_name": "ADEEB",
        "authorized_official_title_or_position": "MEMBER",
        "authorized_official_telephone_number": "281-731-0619",
        "authorized_official_credential": "M.D."
    },
    "taxonomies": [
        {
            "code": "207LP2900X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Anesthesiology, Pain Medicine",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "TX",
            "license": "P9555",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "American Gastro Health",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

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• Gastroenterology Physician in Sugar Land, TX
• Providers in Sugar Land, TX by specialty
• Gastroenterology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.