Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MASON RIDGE AMBULATORY SURGERY CENTER LP
NPI 1821453796
Clinic/Center - Ambulatory Surgical in Chesterfield, MO

Active since December 21, 2015
17298 NORTH OUTER 40 ROAD, SUITE 100, CHESTERFIELD, MO 63005(314) 336-1130(314) 336-1136 Get Directions Write a Review

NPPES record last updated: July 28, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 28, 2026, Oct 11, 2024, Jan 25, 2023 and 1 more (4 updates tracked since 2015).

About Mason Ridge Ambulatory Surgery Center Lp NPPES

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

MASON RIDGE AMBULATORY SURGERY CENTER LP (NPI 1821453796) is a healthcare organization registered as an ambulatory surgical in Chesterfield, Missouri and active in the NPI registry since December 2015. The organization lists Erica Wehrmeister, Officer/authorized Official, as its authorized official.

NPPES Registry Identity

NPI1821453796
Entity TypeOrganization
Primary Taxonomy261QA1903X
Legal Business NameMASON RIDGE AMBULATORY SURGERY CENTER LP
Location Address17298 NORTH OUTER 40 ROAD, SUITE 100Chesterfield, MO 63005
Mailing Address17298 North Outer 40 Road, Suite 100Chesterfield, MO 63005 · (314) 336-1130 · Fax (314) 336-1136
Fax(314) 336-1136
Organization SubpartNo
Authorized OfficialErica WehrmeisterOfficer/authorized Official · (260) 760-9420
Enumeration DateDecember 21, 2015
Last NPPES UpdateJuly 28, 20264 updates tracked since enumeration
NPPES CertifiedJuly 28, 2026
NPI 1821453796 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinic/Center · Ambulatory SurgicalAmbulatory Health Care Facilities
Taxonomy Code261QA1903X
17298 NORTH OUTER 40 ROAD, Chesterfield, MO 63005

Accepted Insurance

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
447 services447 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
237 services231 patients
Colorectal cancer screening; colonoscopy on individual at high risk G0105
Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.
191 services191 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
187 services187 patients
Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121
Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.
82 services82 patients
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249
This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.
47 services45 patients

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 Mason Ridge Ambulatory Surgery Center LP's NPI number?

The NPI number for Mason Ridge Ambulatory Surgery Center LP is 1821453796. It was assigned to this organization in the NPPES registry on December 21, 2015.

Where is Mason Ridge Ambulatory Surgery Center LP located?

Mason Ridge Ambulatory Surgery Center LP is located at 17298 North Outer 40 Road Suite 100, Chesterfield, MO 63005. The listed phone number is (314) 336-1130.

What is Mason Ridge Ambulatory Surgery Center LP's specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Ambulatory Surgical, with taxonomy code 261QA1903X.

What insurance does Mason Ridge Ambulatory Surgery Center LP 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 Mason Ridge Ambulatory Surgery Center LP 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 Mason Ridge Ambulatory Surgery Center LP was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 days 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.