DAVID LEE ULRICH M.D.
NPI 1811124886
Internal Medicine - Gastroenterology in Saint Louis, MO
About David Lee Ulrich M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID LEE ULRICH M.D. (NPI 1811124886) is an individual gastroenterology provider in Saint Louis, Missouri, licensed in Missouri (2011004665) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and is a graduate of Indiana University School Of Medicine (2003).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 6
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
David Lee Ulrich M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show David Ulrich reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 69 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 435 clinicians in this Medicare group
Overland Park, KS 66211
- Reassigned Medicare billing, Missouri enrollment
- 15 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 16
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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital St Louis
Acute Care Hospitals · Saint Louis, MOMercy Hospital Jefferson
Acute Care Hospitals · Festus, MOResearch Medical Center
Acute Care Hospitals · Kansas City, MOMercy Hospital South
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63141 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
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 David Ulrich's NPI number?
The NPI number for David Ulrich is 1811124886. It was assigned to this individual provider in the NPPES registry on June 17, 2009.
Where is David Ulrich located?
David Ulrich practices at 621 S New Ballas Rd Suite 437 A, Saint Louis, MO 63141. The listed phone number is (314) 251-3880.
What is David Ulrich's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is David Ulrich enrolled in Medicare?
Yes. David Ulrich is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for David Ulrich's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Ulrich reassigns Medicare benefits to 3 organizations: Mercy Clinic Gastroenterology, LLC (Saint Louis, MO), Mercy Hospitals East Communities (Saint Louis, MO) and Kansas City Gastroenterology & Hepatology Physicians Group, LLC (Overland Park, KS). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for David Ulrich's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Ulrich accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 4 other insurers list David Ulrich 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.
Is David Ulrich affiliated with any hospitals?
According to CMS data, David Ulrich is affiliated with Mercy Hospital St Louis, Mercy Hospital Jefferson, Research Medical Center and Mercy Hospital South.
When was this NPI record last updated?
The NPPES record for David Ulrich was last updated on February 23, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# David Lee Ulrich, M.D. · NPI 1811124886
Gastroenterology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 17, 2009.
## Identity
- **NPI:** 1811124886 (Entity type: Individual)
- **Enumerated:** June 17, 2009
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 2011004665 (Missouri)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 621 S NEW BALLAS RD, SUITE 437 A, Saint Louis, MO 63141-8232
- **Phone:** (314) 251-3880
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Mercy Clinic Gastroenterology, LLC (NPI 1528295334, Saint Louis, MO); Mercy Hospitals East Communities (NPI 1851431738, Saint Louis, MO); Kansas City Gastroenterology & Hepatology Physicians Group, LLC (NPI 1497019350, Overland Park, KS) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Indiana University School Of Medicine, class of 2003
## Record status
- **NPPES last updated:** February 23, 2011
- **Other identifiers:** Medicare PIN M400017819 (IN); Medicare PIN 859910F2 (IN); Medicare PIN 192770AA2 (IN); and 3 more
---
Source: [NPI Profile](https://npiprofile.com/npi/1811124886) · Data from the CMS NPPES public registry.