River Valley Gastroenterology, PLLC

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

Legal business name

RIVER VALLEY GASTROENTEROLOGY, PLLC

Practice address

9001 Jenny Lind Rd Ste 2
Fort Smith, AR 72908-8629

Phone

(479) 444-3566

Fax

(479) 316-4464

NPI assigned

Dec 4, 2023

Organization subpart

No

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

Authorized official

Name

Jenifer Kolbert, RN, COO

Title

Chief Operating Officer

Phone

(479) 444-3566

Specialties & licenses 1

Addresses

Other identifiers 2

Other names 1

• River Valley Gastroenterology Doing business as

Medicare fee-for-service enrollment

Enrolled in AR

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

Member organizations 1

Organizations listed as members of this organization in the National Provider Directory.

• Fianna Hills Surgery Center Inc

  • Ambulatory Surgical Clinic/Center
  • Fort Smith, AR
  • NPI 1083206866

  Member Of

  NPD member

Locations

Practitioners 4

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.

• Lou Ann Parker, ARNP

  • Adult Health Nurse Practitioner
  • Fort Smith, AR
  • NPI 1316361009
  Medicare reassignment NPD
• Hrair P Simonian, MD

  • Gastroenterology Physician
  • Fort Smith, AR
  • NPI 1861502973
  Medicare reassignment NPD
• Lino Lamb, AGACNP-BC

  • Acute Care Nurse Practitioner
  • Fort Smith, AR
  • NPI 1588212575

  Single Specialty

  NPD
• Michelle Reyes Macias, APRN-CNP

  • Family Nurse Practitioner
  • Fort Smith, AR
  • NPI 1295664589
  NPD

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

{
    "created_epoch": "1701648000000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1779840000000",
    "number": "1346016185",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "9001 JENNY LIND RD STE 2",
            "city": "FORT SMITH",
            "state": "AR",
            "postal_code": "729088629",
            "telephone_number": "479-444-3566",
            "fax_number": "479-316-4464"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9001 JENNY LIND RD STE 2",
            "city": "FORT SMITH",
            "state": "AR",
            "postal_code": "729088629",
            "telephone_number": "479-444-3566",
            "fax_number": "479-316-4464"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "RIVER VALLEY GASTROENTEROLOGY, PLLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2023-12-04",
        "last_updated": "2026-05-27",
        "certification_date": "2026-05-27",
        "status": "A",
        "authorized_official_last_name": "KOLBERT",
        "authorized_official_first_name": "JENIFER",
        "authorized_official_title_or_position": "CHIEF OPERATING OFFICER",
        "authorized_official_telephone_number": "479-444-3566",
        "authorized_official_credential": "RN, COO"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Gastroenterology",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "201263180A",
            "state": "OK"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "316656002",
            "state": "AR"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "River Valley Gastroenterology",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

• Nohemy Rivas
• River Valley Anesthesia Associates, P. a.
• River Valley Back and Neck Clinic, Inc
• River Valley Community Center
• River Valley Dental Group PLLC
• River Valley Mobile Dental Clinic
• River Valley Oral & Maxillofacial Surgery PLC
• River Valley Pediatric Dentistry PLLC
• River Valley Pediatrics LLC
• River Valley Primary Care

• Gastroenterology Physician in Fort Smith, AR
• Providers in Fort Smith, AR by specialty
• Gastroenterology Physician in Arkansas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 27, 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.