Coastal Gastroenterology Associates, PA

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

Legal business name

COASTAL GASTROENTEROLOGY ASSOCIATES, PA

Practice address

1015 W Medical Center Blvd Ste 1400
Webster, TX 77598-4055

Phone

(281) 557-2527

Fax

(281) 557-7203

NPI assigned

Sep 3, 2006

Last updated

Jun 15, 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

Dr. Advitya Nonesupplied MalhotraNPI 1609070275

Title

Owner

Phone

(281) 557-2527

Specialties & licenses 1

Addresses

Other identifiers 7

Medicare fee-for-service enrollment

Enrolled in TX

Enrollment records 1

These CMS records do not include an NPI. They are shown because their name and street address match this provider’s.

CLIA laboratory certificates

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/HIJIBD

Practitioners 8

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.

• Advitya Nonesupplied Malhotra, M.D.

  • Gastroenterology Physician
  • Webster, TX
  • NPI 1609070275
  Medicare reassignment Care Compare group NPD Authorized official
• Jesseca Lynn Izquierdo, CNP

  • Family Nurse Practitioner
  • Webster, TX
  • NPI 1962159616

  Single Specialty

  Medicare reassignment Care Compare group NPD
• Mahvish Khalid, MD

  • Gastroenterology Physician
  • Webster, TX
  • NPI 1891291811
  Medicare reassignment Care Compare group NPD
• Monider Singh, MD,MBA

  • Gastroenterology Physician
  • Webster, TX
  • NPI 1427518919
  Medicare reassignment Care Compare group NPD
• Diana Pham, N.P.

  • Adult Health Nurse Practitioner
  • Webster, TX
  • NPI 1346627312
  Medicare reassignment NPD
• Kalyanam Subramanyam VI, M.D.

  • Gastroenterology Physician
  • Webster, TX
  • NPI 1164493870
  Medicare reassignment NPD
• Geetha Subramanyam, M.D.

  • Geriatric Medicine (Family Medicine) Physician
  • Webster, TX
  • NPI 1487625794
  NPD (past)
• Murali Krishna, M.D.

  • Gastroenterology Physician
  • Rockledge, FL
  • NPI 1518979012
  NPD (past)

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

{
    "created_epoch": "1157241600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1781481600000",
    "number": "1043312515",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1015 W MEDICAL CENTER BLVD STE 1400",
            "city": "WEBSTER",
            "state": "TX",
            "postal_code": "775984055",
            "telephone_number": "281-557-2527",
            "fax_number": "281-557-7203"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1015 W MEDICAL CENTER BLVD STE 1400",
            "city": "WEBSTER",
            "state": "TX",
            "postal_code": "775984055",
            "telephone_number": "281-557-2527",
            "fax_number": "281-557-7203"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "COASTAL GASTROENTEROLOGY ASSOCIATES, PA",
        "organizational_subpart": "NO",
        "enumeration_date": "2006-09-03",
        "last_updated": "2026-06-15",
        "certification_date": "2026-06-15",
        "status": "A",
        "authorized_official_last_name": "MALHOTRA",
        "authorized_official_first_name": "ADVITYA",
        "authorized_official_middle_name": "NONESUPPLIED",
        "authorized_official_title_or_position": "OWNER",
        "authorized_official_telephone_number": "281-557-2527",
        "authorized_official_name_prefix": "Dr."
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MCR UPIN - INDIVIDUAL",
            "identifier": "B26780",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "AETNA",
            "identifier": "4102895",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "THMP - DR. SUBRAMANYAM",
            "identifier": "114758902",
            "state": "TX"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "NPI - INDIVIDUAL",
            "identifier": "1164493870",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RR MCR",
            "identifier": "P00440059",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RR MCR GROUP NUMBER",
            "identifier": "5283",
            "state": null
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "BCBS - TX - BLUE LINK ID",
            "identifier": "2226780",
            "state": "TX"
        }
    ],
    "endpoints": [],
    "other_names": []
}

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• Gastroenterology Physician in Webster, TX
• Providers in Webster, 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 15, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• 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.