DR. STEVEN LETO D.O.
NPI 1316253552
Emergency Medicine in Chicago, IL
About Dr. Steven Leto D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEVEN LETO D.O. (NPI 1316253552) is an individual emergency medicine provider in Chicago, Illinois, licensed in Illinois (12505883) and active in the NPI registry since August 2010. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Steven Leto D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Steven Leto reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fort Morgan, CO 80701
- Reassigned Medicare billing, Colorado enrollment
- 468 clinicians in this Medicare group
La Junta, CO 81050
- Reassigned Medicare billing, Colorado enrollment
- 24 clinicians in this Medicare group
Colorado Springs, CO 80923
- Reassigned Medicare billing, Colorado enrollment
- 285 clinicians in this Medicare group
Alamosa, CO 81101
- Reassigned Medicare billing, Colorado enrollment
- 203 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 4
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60612 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.
CHICAG, IL 60612
CHICAGO, IL 60612
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 Steven Leto's NPI number?
The NPI number for Steven Leto is 1316253552. It was assigned to this individual provider in the NPPES registry on August 25, 2010.
Where is Steven Leto located?
Steven Leto practices at 1901 W Harrison St, Chicago, IL 60612. The listed phone number is (312) 864-6000.
What is Steven Leto's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Steven Leto enrolled in Medicare?
Yes. Steven Leto is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Steven Leto's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Steven Leto reassigns Medicare benefits to 4 organizations: Usacs Of Colorado, Inc (Fort Morgan, CO), Arkansas Valley Regional Medical Center (La Junta, CO), Usacs Observation Medicine Services Of Colorado Inc. (Colorado Springs, CO) and Lutheran Hospital Association Of The San Luis Valley (Alamosa, CO). 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 Steven Leto'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 Steven Leto was last updated on May 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Steven Leto, D.O. · NPI 1316253552
Emergency Medicine physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since August 25, 2010.
## Identity
- **NPI:** 1316253552 (Entity type: Individual)
- **Enumerated:** August 25, 2010
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 12505883 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1901 W HARRISON ST, Chicago, IL 60612-3714
- **Phone:** (312) 864-6000
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Usacs Of Colorado, Inc (NPI 1659156610, Fort Morgan, CO); Arkansas Valley Regional Medical Center (NPI 1760489470, La Junta, CO); Usacs Observation Medicine Services Of Colorado Inc. (NPI 1942161484, Colorado Springs, CO); Lutheran Hospital Association Of The San Luis Valley (NPI 1720269434, Alamosa, CO) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 4, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1316253552) · Data from the CMS NPPES public registry.