LELAND C LENAHAN III M.D.
NPI 1770567117
Emergency Medicine - Emergency Medical Services in Evergreen Park, IL
About Leland C Lenahan Iii M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LELAND C LENAHAN III M.D. (NPI 1770567117) is an individual emergency medical services provider in Evergreen Park, Illinois, licensed in Illinois (036106714) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Lane Regional Medical Center, and maintains a secondary practice location in Zachary.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 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
Leland C Lenahan Iii 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
13Medicare enrollment records show Leland Lenahan reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Farmerville, LA 71241
- Reassigned Medicare billing, Louisiana enrollment
- 22 clinicians in this Medicare group
Springhill, LA 71075
- Reassigned Medicare billing, Louisiana enrollment
- 68 clinicians in this Medicare group
Shreveport, LA 71105
- Reassigned Medicare billing, Louisiana enrollment
- 90 clinicians in this Medicare group
Ferriday, LA 71334
- Reassigned Medicare billing, Louisiana enrollment
- 37 clinicians in this Medicare group
Bonham, TX 75418
- Reassigned Medicare billing, Louisiana enrollment
- 56 clinicians in this Medicare group
Jena, LA 71342
- Reassigned Medicare billing, Louisiana enrollment
- 67 clinicians in this Medicare group
Jena, LA 71342
- Reassigned Medicare billing, Louisiana enrollment
- 72 clinicians in this Medicare group
Bogalusa, LA 70427
- Reassigned Medicare billing, Louisiana enrollment
- 91 clinicians in this Medicare group
Alexandria, LA 71301
- Reassigned Medicare billing, Louisiana enrollment
- 178 clinicians in this Medicare group
Many, LA 71449
- Reassigned Medicare billing, Louisiana enrollment
- 126 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lane Regional Medical Center
Acute Care Hospitals · Zachary, LAAllen Parish Hospital
Acute Care Hospitals · Kinder, LALasalle General Hospital
Acute Care Hospitals · Jena, LARiverland Medical Center
Critical Access Hospitals · Ferriday, LAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60805 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.
EVERGREEN PARK, IL 60805
EVERGREEN PARK, IL 60805
EVERGREEN PARK, IL 60805
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 Leland Lenahan's NPI number?
The NPI number for Leland Lenahan is 1770567117. It was assigned to this individual provider in the NPPES registry on November 30, 2005.
Where is Leland Lenahan located?
Leland Lenahan practices at 2800 W 95th St, Evergreen Park, IL 60805. The listed phone number is (708) 422-4221.
What is Leland Lenahan's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
Is Leland Lenahan enrolled in Medicare?
Yes. Leland Lenahan 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 Leland Lenahan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leland Lenahan reassigns Medicare benefits to 13 organizations: Union General Hospital (Farmerville, LA), Nes Louisiana Inc (Springhill, LA), Highland Emergency Group, LLC (Shreveport, LA), Keystone Medical Services Of Ferriday, Inc. (Ferriday, LA), Concord North Texas, PLLC (Bonham, TX) and 8 more organizations, 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 Leland Lenahan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Leland Lenahan accept?
Health plans from CHRISTUS Health Plan and HMO Louisiana list Leland Lenahan 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 Leland Lenahan affiliated with any hospitals?
According to CMS data, Leland Lenahan is affiliated with Lane Regional Medical Center, Allen Parish Hospital, Lasalle General Hospital and Riverland Medical Center.
When was this NPI record last updated?
The NPPES record for Leland Lenahan was last updated on May 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Leland C Lenahan III, M.D. · NPI 1770567117
Emergency Medical Services physician in Evergreen Park, Illinois. Individual provider, active in the CMS NPPES registry since November 30, 2005.
## Identity
- **NPI:** 1770567117 (Entity type: Individual)
- **Enumerated:** November 30, 2005
- **Primary specialty:** Emergency Medicine - Emergency Medical Services · taxonomy 207PE0004X
- **State license:** 036106714 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 2800 W 95TH ST, Evergreen Park, IL 60805-2746
- **Phone:** (708) 422-4221 · **Fax:** (708) 422-4415
## 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:** 13 organizations under Medicare reassignment (form CMS-855R): Union General Hospital (NPI 1881678704, Farmerville, LA); Nes Louisiana Inc (NPI 1649867789, Springhill, LA); Highland Emergency Group, LLC (NPI 1154913861, Shreveport, LA); Keystone Medical Services Of Ferriday, Inc. (NPI 1215704754, Ferriday, LA); Concord North Texas, PLLC (NPI 1952761173, Bonham, TX); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Louisiana State University School Of Medicine In New Orleans, class of 1991
## Record status
- **NPPES last updated:** May 18, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1770567117) · Data from the CMS NPPES public registry.