GATEWAY DIGESTIVE AND LIVER SPECIALISTS, LLC
NPI 1265566780
Internal Medicine - Gastroenterology in Saint Louis, MO

Q: What is Gateway Digestive And Liver Specialists, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Active since March 15, 2007CLIA 26D2126034 · Waiver

4510 DELMAR BLVD, SAINT LOUIS, MO 63108(314) 454-6903(314) 454-6652 Get Directions Write a Review

NPPES record last updated: July 8, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Gateway Digestive And Liver Specialists, Llc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GATEWAY DIGESTIVE AND LIVER SPECIALISTS, LLC (NPI 1265566780) is a healthcare organization registered as a gastroenterology in Saint Louis, Missouri and active in the NPI registry since March 2007. The organization holds a CLIA Waiver certificate valid through February 16, 2027 and lists Rachel A Montemayor, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1265566780

Entity TypeOrganization

Primary Taxonomy207RG0100X

Legal Business NameGATEWAY DIGESTIVE AND LIVER SPECIALISTS, LLC

Location Address4510 DELMAR BLVDSaint Louis, MO 63108-1702

Mailing Address4510 Delmar BlvdSaint Louis, MO 63108-1702 · (314) 454-6903 · Fax (314) 454-6652

Phone(314) 454-6903

Fax(314) 454-6652

Organization SubpartNo

Authorized OfficialRachel A MontemayorOffice Manager · (314) 454-6903

Enumeration DateMarch 15, 2007

Last NPPES UpdateJuly 8, 2016

✔ NPI 1265566780 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in MO · 107492

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

4510 DELMAR BLVD, Saint Louis, MO 63108

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Other Identifiers 3

Medicaid208107912MO

Medicare PIN000014212MO

OtherDC2409MO · Rr Medicare

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 26D2126034

Gateway Digestive & Liver Specialists, LLC · Saint Louis, MO

Active · expires Feb 16, 2027

CLIA Number26D2126034

Laboratory TypePhysician Office

Certificate Effective DateFebruary 17, 2025

Certificate Expiration DateFebruary 16, 2027

Laboratory DirectorDamon C. Clines

Laboratory Phone(314) 454-6903

Laboratory LocationGateway Digestive & Liver Specialists, LLC4510 Delmar Blvd, Saint Louis, MO 63108

CLIA data matches this NPI record on: Address Phone

This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DAMON C CLINES M.D.

Internal Medicine (Gastroenterology)

4510 DELMAR BLVD
SAINT LOUIS, MO 63108

St. Louis City (314) 454-6903

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gateway Digestive And Liver Specialists, LLC's NPI number?

The NPI number for Gateway Digestive And Liver Specialists, LLC is 1265566780. It was assigned to this organization in the NPPES registry on March 15, 2007.

Where is Gateway Digestive And Liver Specialists, LLC located?

Gateway Digestive And Liver Specialists, LLC is located at 4510 Delmar Blvd, Saint Louis, MO 63108. The listed phone number is (314) 454-6903.

What is Gateway Digestive And Liver Specialists, LLC's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Does Gateway Digestive And Liver Specialists, LLC hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 26D2126034) is associated with this NPI, valid through February 16, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Gateway Digestive And Liver Specialists, LLC was last updated on July 8, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.