JOHN C. STEPANEK D.O.
NPI 1568458941
Emergency Medicine in Shawnee, OK
About John C. Stepanek D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN C. STEPANEK D.O. (NPI 1568458941) is an individual emergency medicine provider in Shawnee, Oklahoma, licensed in Oklahoma (4021) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
John C. Stepanek D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show John Stepanek reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Norman, OK 73071
- Reassigned Medicare billing, Oklahoma enrollment
- 418 clinicians in this Medicare group
Stillwater, OK 74074
- Reassigned Medicare billing, Oklahoma enrollment
- 298 clinicians in this Medicare group
Alton, IL 62002
- Reassigned Medicare billing, Missouri enrollment
- 343 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 74804 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.
SHAWNEE, OK 74804
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 John Stepanek's NPI number?
The NPI number for John Stepanek is 1568458941. It was assigned to this individual provider in the NPPES registry on September 21, 2005.
Where is John Stepanek located?
John Stepanek practices at 1102 W Macarthur St, Shawnee, OK 74804. The listed phone number is (405) 878-8121.
What is John Stepanek's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is John Stepanek enrolled in Medicare?
Yes. John Stepanek is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for John Stepanek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Stepanek reassigns Medicare benefits to 3 organizations: Emergency Services Of Oklahoma PC (Norman, OK), South Central Emergency Services PC (Stillwater, OK) and Southeastern Emergency Physicians Of Memphis LLC (Alton, IL). 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 John Stepanek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for John Stepanek was last updated on March 13, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# John C. Stepanek, D.O. · NPI 1568458941
Emergency Medicine physician in Shawnee, Oklahoma. Individual provider, active in the CMS NPPES registry since September 21, 2005.
## Identity
- **NPI:** 1568458941 (Entity type: Individual)
- **Enumerated:** September 21, 2005
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 4021 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 1102 W MACARTHUR ST, Shawnee, OK 74804-1743
- **Phone:** (405) 878-8121
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Emergency Services Of Oklahoma PC (NPI 1215249891, Norman, OK); South Central Emergency Services PC (NPI 1558663724, Stillwater, OK); Southeastern Emergency Physicians Of Memphis LLC (NPI 1437105277, Alton, IL) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 13, 2023
- **Other identifiers:** Medicaid 200015440A (OK)
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Source: [NPI Profile](https://npiprofile.com/npi/1568458941) · Data from the CMS NPPES public registry.