DR. GENEVIEVE STAUFFER PENTECOST MD
NPI 1336719525
Emergency Medicine in Saint Louis, MO
About Dr. Genevieve Stauffer Pentecost Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GENEVIEVE STAUFFER PENTECOST MD (NPI 1336719525) is an individual emergency medicine provider in Saint Louis, Missouri, licensed in Missouri (2023000515) and active in the NPI registry since June 2021. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital South, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Genevieve Stauffer Pentecost Md 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
6Medicare enrollment records show Genevieve Pentecost reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63136
- Reassigned Medicare billing, Missouri enrollment
- 114 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 241 clinicians in this Medicare group
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- 186 clinicians in this Medicare group
Festus, MO 63028
- Reassigned Medicare billing, Missouri enrollment
- 118 clinicians in this Medicare group
Washington, MO 63090
- Reassigned Medicare billing, Missouri enrollment
- 178 clinicians in this Medicare group
Osage Beach, MO 65065
- Reassigned Medicare billing, Missouri enrollment
- 77 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
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital South
Acute Care Hospitals · Saint Louis, MOChristian Hospital Northeast
Acute Care Hospitals · Saint Louis, MOProgress West Hospital
Acute Care Hospitals · O Fallon, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63136 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 63136
SAINT LOUIS, MO 63136
SAINT LOUIS, MO 63136
SAINT LOUIS, MO 63136
SAINT LOUIS, MO 63136
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 Genevieve Pentecost's NPI number?
The NPI number for Genevieve Pentecost is 1336719525. It was assigned to this individual provider in the NPPES registry on June 29, 2021.
Where is Genevieve Pentecost located?
Genevieve Pentecost practices at 11133 Dunn Rd Dept Emergency Med, Saint Louis, MO 63136. The listed phone number is (314) 362-9123.
What is Genevieve Pentecost's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Genevieve Pentecost enrolled in Medicare?
Yes. Genevieve Pentecost 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 Genevieve Pentecost's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Genevieve Pentecost reassigns Medicare benefits to 6 organizations: Washington University Community Specialists, LLC (Saint Louis, MO), Mercy Hospitals East Communities (Saint Louis, MO), Mercy Hospital South (Saint Louis, MO), Mercy Hospital Jefferson (Festus, MO), Mercy Hospitals East Communities (Washington, MO) and 1 more organization, listed in the Medicare section above. 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 Genevieve Pentecost's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Genevieve Pentecost accept?
Health plans from Medica list Genevieve Pentecost 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 Genevieve Pentecost affiliated with any hospitals?
According to CMS data, Genevieve Pentecost is affiliated with Mercy Hospital South, Christian Hospital Northeast and Progress West Hospital.
When was this NPI record last updated?
The NPPES record for Genevieve Pentecost was last updated on July 14, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. Genevieve Stauffer Pentecost, MD · NPI 1336719525
Emergency Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 29, 2021.
## Identity
- **NPI:** 1336719525 (Entity type: Individual)
- **Enumerated:** June 29, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 2023000515 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 11133 DUNN RD, DEPT EMERGENCY MED, Saint Louis, MO 63136-6163
- **Phone:** (314) 362-9123 · **Fax:** (314) 747-9160
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Washington University Community Specialists, LLC (NPI 1922812254, Saint Louis, MO); Mercy Hospitals East Communities (NPI 1255790762, Saint Louis, MO); Mercy Hospital South (NPI 1568481984, Saint Louis, MO); Mercy Hospital Jefferson (NPI 1508859661, Festus, MO); Mercy Hospitals East Communities (NPI 1104912997, Washington, MO); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** July 14, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1336719525) · Data from the CMS NPPES public registry.