ZACHARY CRENSHAW DO
NPI 1497430920
Emergency Medicine in Saint Louis, MO
About Zachary Crenshaw Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ZACHARY CRENSHAW DO (NPI 1497430920) is an individual emergency medicine provider in Saint Louis, Missouri, licensed in Missouri (2026007089) and active in the NPI registry since June 2023. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital South, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
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
Zachary Crenshaw Do 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
4Medicare enrollment records show Zachary Crenshaw reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Saint Louis, MO 63128
- Reassigned Medicare billing, Missouri enrollment
- 186 clinicians in this Medicare group
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 241 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
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital South
Acute Care Hospitals · Saint Louis, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63128 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 63128
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 Zachary Crenshaw's NPI number?
The NPI number for Zachary Crenshaw is 1497430920. It was assigned to this individual provider in the NPPES registry on June 21, 2023.
Where is Zachary Crenshaw located?
Zachary Crenshaw practices at 10010 Kennerly Rd, Saint Louis, MO 63128. The listed phone number is (314) 525-1900.
What is Zachary Crenshaw's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Zachary Crenshaw enrolled in Medicare?
Yes. Zachary Crenshaw 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 Zachary Crenshaw's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zachary Crenshaw reassigns Medicare benefits to 4 organizations: Mercy Hospital South (Saint Louis, MO), Mercy Hospitals East Communities (Saint Louis, MO), Mercy Hospital Jefferson (Festus, MO) and Mercy Hospitals East Communities (Washington, MO). 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 Zachary Crenshaw's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Zachary Crenshaw affiliated with any hospitals?
According to CMS data, Zachary Crenshaw is affiliated with Mercy Hospital South.
When was this NPI record last updated?
The NPPES record for Zachary Crenshaw was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Zachary Crenshaw, DO · NPI 1497430920
Emergency Medicine physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since June 21, 2023.
## Identity
- **NPI:** 1497430920 (Entity type: Individual)
- **Enumerated:** June 21, 2023
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 2026007089 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 10010 KENNERLY RD, Saint Louis, MO 63128-2106
- **Phone:** (314) 525-1900
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Mercy Hospital South (NPI 1568481984, Saint Louis, MO); Mercy Hospitals East Communities (NPI 1427098169, Saint Louis, MO); Mercy Hospital Jefferson (NPI 1508859661, Festus, MO); Mercy Hospitals East Communities (NPI 1104912997, Washington, MO) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** At Still University Of Health Sciences, College Of Osteo Med, Kirksville, class of 2023
## Record status
- **NPPES last updated:** August 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1497430920) · Data from the CMS NPPES public registry.