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MERCY CLINIC GASTROENTEROLOGY, LLC
NPI 1528295334
Internal Medicine - Gastroenterology in Saint Louis, MO

Active since June 18, 2009
621 S NEW BALLAS RD, SUITE 437-A, SAINT LOUIS, MO 63141(314) 251-3880(314) 251-3885 Get Directions Write a Review

NPPES record last updated: February 19, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mercy Clinic Gastroenterology, Llc NPPES

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

MERCY CLINIC GASTROENTEROLOGY, LLC (NPI 1528295334), doing business as St Johns Mercy Gastroenterology Specialists, is a healthcare organization registered as a gastroenterology in Saint Louis, Missouri and active in the NPI registry since June 2009. The organization lists Jonathan Tyler Sturgeon, Cfo, as its authorized official.

NPPES Registry Identity

NPI1528295334
Entity TypeOrganization
Primary Taxonomy207RG0100X
Legal Business NameMERCY CLINIC GASTROENTEROLOGY, LLC
Location Address621 S NEW BALLAS RD, SUITE 437-ASaint Louis, MO 63141-8232
Mailing Address621 S New Ballas Rd Ste 437aSaint Louis, MO 63141-8259 · (314) 251-3880 · Fax (314) 251-3885
Phone(314) 251-3880
Fax(314) 251-3885
Organization SubpartYesParent: Mercy Clinic East Communities
Authorized OfficialJonathan Tyler SturgeonCfo · (314) 251-1917
Enumeration DateJune 18, 2009
Last NPPES UpdateFebruary 19, 2026
NPPES CertifiedFebruary 19, 2026
✔ NPI 1528295334 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
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.
621 S NEW BALLAS RD, Saint Louis, MO 63141
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Other Names 1

Former Legal Business NameSt Johns Mercy Gastroenterology Specialists

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

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and more.Insurance ›

Other Providers at the Same Location NPPES 20

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

STEPHANIE LYNN SHOREY WHNP-BC
Nurse Practitioner (Women's Health)
621 S NEW BALLAS RD, SUITE 2007B
SAINT LOUIS, MO 63141
St. Louis County (314) 991-5000
DR. KATHRYN BOTNEY M.D.
Obstetrics & Gynecology
621 S NEW BALLAS RD, SUITE 4005
SAINT LOUIS, MO 63141
St. Louis County (314) 567-5016
HUILIN LI M.D.
Internal Medicine
621 S NEW BALLAS RD, SUITE 3016B
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6339
LUIS A GIUFFRA LLC
Psychiatry & Neurology (Psychiatry)
621 S NEW BALLAS RD, SUITE 398A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-7720
JOSEPH G HERRMANN MD LLC
Specialist
621 S NEW BALLAS RD, SUITE 419A
SAINT LOUIS, MO 63141
St. Louis County (314) 432-0056
KAREN KILO RN, CDE, RD
Nutritionist (Nutrition, Education)
621 S NEW BALLAS RD, SUITE 460A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-4330
KATINA M CANDEE PA-C
Physician Assistant
621 S NEW BALLAS RD, SUITE 483A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-2095
DR. PETER KONG-WOO YOON M.D.
Specialist
621 S NEW BALLAS RD, STE 297A
SAINT LOUIS, MO 63141
St. Louis County (314) 251-6364

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 Mercy Clinic Gastroenterology, LLC's NPI number?

The NPI number for Mercy Clinic Gastroenterology, LLC is 1528295334. It was assigned to this organization in the NPPES registry on June 18, 2009. The provider was formerly known as St Johns Mercy Gastroenterology Specialists.

Where is Mercy Clinic Gastroenterology, LLC located?

Mercy Clinic Gastroenterology, LLC is located at 621 S New Ballas Rd Suite 437-A, Saint Louis, MO 63141. The listed phone number is (314) 251-3880.

What is Mercy Clinic Gastroenterology, LLC's specialty?

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

What insurance does Mercy Clinic Gastroenterology, LLC accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 4 other insurers list Mercy Clinic Gastroenterology, LLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Mercy Clinic Gastroenterology, LLC was last updated on February 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months 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.