Mercy Clinic Gastroenterology, LLC

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

Legal business name

MERCY CLINIC GASTROENTEROLOGY, LLC

Practice address

621 S New Ballas Rd
Suite 437-a
Saint Louis, MO 63141-8232

Phone

(314) 251-3880

Fax

(314) 251-3885

NPI assigned

Jun 18, 2009

Last updated

Feb 19, 2026By the provider in NPPES

Organization subpart

Yes

Parent organization

MERCY CLINIC EAST COMMUNITIESAs reported in NPPES

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

Authorized official

Name

Jonathan Tyler Sturgeon

Title

Cfo

Phone

(314) 251-1917

Specialties & licenses 1

Addresses

Other names 1

• St Johns Mercy Gastroenterology Specialists Former legal business name

Medicare fee-for-service enrollment

Enrolled in MO

Enrollment records 1

Part of

Mercy Clinic Communities

Member of 1

Organizations this organization is a member of, according to the National Provider Directory.

• Mercy Clinic East Communities

  • Family Medicine Physician
  • Saint Louis, MO
  • NPI 1043574940

  Member Of

  NPD member

Locations

Parent organization (reported in NPPES) 1

This organization reports itself as a subpart in NPPES; the parent’s legal name matches this organization in the same state.

• Mercy Clinic East Communities

  • Endocrinology, Diabetes & Metabolism Physician
  • Ballwin, MO
  • NPI 1700370061
  NPPES parent name

Practitioners 85

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.

• Yazan A Abdalla, M.D.

  • Gastroenterology Physician
  • Saint Louis, MO
  • NPI 1033365358
  Medicare reassignment Care Compare group NPD
• Aireen-Ronalda Manalo Agulto, MD

  • Gastroenterology Physician
  • Saint Louis, MO
  • NPI 1447771191
  Medicare reassignment Care Compare group NPD
• Zarir Ahmed

  • Gastroenterology Physician
  • Saint Louis, MO
  • NPI 1770937492
  Medicare reassignment Care Compare group NPD
• Badr Mohammad Alhumayyd, MBBS

  • Gastroenterology Physician
  • Saint Louis, MO
  • NPI 1821659095
  Medicare reassignment Care Compare group NPD
• Samer Alkaade, M D

  • Gastroenterology Physician
  • Saint Louis, MO
  • NPI 1982648259
  Medicare reassignment Care Compare group NPD
• Mohammed Eyad Yaseen Alsabbagh, M.D.

  • Gastroenterology Physician
  • Saint Louis, MO
  • NPI 1083917090
  Medicare reassignment Care Compare group NPD
• Youssef Assioun, MD

  • Gastroenterology Physician
  • Saint Louis, MO
  • NPI 1639370919
  Medicare reassignment Care Compare group NPD
• Cheryl Bayens, FNP

  • Family Nurse Practitioner
  • Saint Louis, MO
  • NPI 1679967673
  Medicare reassignment Care Compare group NPD
• Marc J Bernstein, M.D.

  • Gastroenterology Physician
  • Saint Louis, MO
  • NPI 1336110543
  Medicare reassignment Care Compare group NPD
• Faiza Bhatti, M.D.,

  • Gastroenterology Physician
  • Saint Louis, MO
  • NPI 1144556499
  Medicare reassignment Care Compare group NPD
• Carol Bivins, AG-NP

  • Adult Health Nurse Practitioner
  • Saint Louis, MO
  • NPI 1154935880
  Medicare reassignment Care Compare group NPD
• Robert David Bohnert, DNP, APRN, FNP-C

  • Family Nurse Practitioner
  • Saint Louis, MO
  • NPI 1174293559
  Medicare reassignment Care Compare group NPD

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

{
    "created_epoch": "1245283200000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1771459200000",
    "number": "1528295334",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "621 S NEW BALLAS RD STE 437A",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631418259",
            "telephone_number": "314-251-3880",
            "fax_number": "314-251-3885"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "621 S NEW BALLAS RD",
            "address_2": "SUITE 437-A",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631418232",
            "telephone_number": "314-251-3880",
            "fax_number": "314-251-3885"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MERCY CLINIC GASTROENTEROLOGY, LLC",
        "organizational_subpart": "YES",
        "parent_organization_legal_business_name": "MERCY CLINIC EAST COMMUNITIES",
        "enumeration_date": "2009-06-18",
        "last_updated": "2026-02-19",
        "certification_date": "2026-02-19",
        "status": "A",
        "authorized_official_last_name": "STURGEON",
        "authorized_official_first_name": "JONATHAN",
        "authorized_official_middle_name": "TYLER",
        "authorized_official_title_or_position": "CFO",
        "authorized_official_telephone_number": "314-251-1917"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "NU",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "St Johns Mercy Gastroenterology Specialists",
            "code": "4",
            "type": "Former Legal Business Name"
        }
    ]
}

• Mercy Clinic East Communities
• Mercy Clinic East Communities
• Mercy Clinic East Communities
• Mercy Clinic East Community
• Mercy Clinic Endocrinology, LLC
• Mercy Clinic Geriatrics, LLC
• Mercy Clinic GYN Oncology, LLC
• Mercy Clinic Heart and Vascular, LLC
• Mercy Clinic Infectious Disease LLC
• Mercy Clinic Kids Gi, LLC

• Gastroenterology Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Gastroenterology Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 19, 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.