Leland C. Lenahan, M.D.
Emergency Medical Services (Emergency Medicine) Physician · Evergreen Park, IL
Leland C. Lenahan, M.D. is an emergency medical services (emergency medicine) physician with a practice address in Evergreen Park, Illinois, and NPI 1770567117, issued on Nov 30, 2005. Check the license (Illinois 036106714, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Leland C. Lenahan
- Credential
- M.D.
- Primary taxonomy
- Emergency Medical Services (Emergency Medicine) Physician 207PE0004X
- License numbers
- 036106714 IL
MD.021384 LA
Self-reported in NPPES; status is on the state search - Practice location
- 2800 W 95TH St, Evergreen Park, IL 60805
- Phone
- (708) 422-4221
- Enumerated
- Nov 30, 2005
- Record last updated
- May 18, 2026
- Fax
- (708) 422-4415
- Medicare enrollment
- Enrolled (PECOS I20070321000555); accepts Medicare assignment
- Medical or professional school
- Louisiana State University School Of Medicine In New Orleans, 1991
- Entity
- Type 1 · individual
8 nearest emergency medical services (emergency medicine) physician records → All 117 in Illinois → Look up another NPI →
Also registered at 2800 W 95TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Vincent Adduci, CRNACertified Registered Nurse Anesthetist1790915890
- Mary Alberts, FNPFamily Nurse Practitioner1548041544
- Sunil Arora, M.D.Emergency Medicine Physician1609018217
- M.bassel Atassi, M.D.Hematology & Oncology Physician1689876328
- Merrill Barnes, MDAnatomic Pathology & Clinical Pathology Physician1033738034
- Maria Bayas, NPAcute Care Nurse Practitioner1972740660
Verify Leland C. Lenahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036106714Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average emergency medical services (emergency medicine) physician in 2024
320 Medicare Part D claims for 235 beneficiaries, against an average of 292 among the 1,653 providers of this specialty who prescribed in Part D. 86 claims were for opioids.
Most prescribed
- Levofloxacin45 claims
- Oxycodone-Acetaminophen45 claims
- Hydrocodone-Acetaminophen41 claims
- Prochlorperazine Maleate29 claims
- Methylprednisolone21 claims
- Ketorolac Tromethamine14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 3 group practices
- Acs Primary Care Physicians Louisiana PCZachary, LA
- Emergency Staffing Solutions IncKinder, LA
- Jena Ess LLCJena, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leland C. Lenahan among 117 emergency medical services (emergency medicine) physician records in Illinois
Leland C. Lenahan, M.D. is one of 117 emergency medical services (emergency medicine) physician records with a practice address in Illinois. 53% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 76% newer
- In a Medicare fileYes · 53% of these records are
- In the CMS Doctors and Clinicians fileYes · 37% of these records are
- Graduated1991 · median 1996 among the 42 with a school on file
- Record last updated2026 · 75% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207PE0004X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 emergency medical services (emergency medicine) physician records list a practice address in Evergreen Park
They are 9 of the 603 NPPES records with a practice address in Evergreen Park, and 117 emergency medical services (emergency medicine) physician records in Illinois.
All 117 in Illinois → Every provider in Evergreen Park → Emergency Medical Services (Emergency Medicine) Physician nationwide →
The 8 emergency medical services (emergency medicine) physician records with the nearest ZIP codes
- James Danziger, M.D.Evergreen Park, IL 608051427032838
- Joe Eggebeen, M.D.Evergreen Park, IL 608051821071374
- Ronald Holt, M.D.Evergreen Park, IL 608051295718781
- Berry Lewis, M.D.Evergreen Park, IL 608051669456729
- Richard Lopez, M.D.Evergreen Park, IL 608051801870977
- Daniel Philipsborn, M.D.Evergreen Park, IL 608051962486035
- Francisco Rosales, M.D.Evergreen Park, IL 608051285618660
- William Walsh, M.D.Evergreen Park, IL 608051659355972
Common questions
What is Leland C. Lenahan, M.D.'s NPI number?
Leland C. Lenahan, M.D.'s National Provider Identifier (NPI) is 1770567117, issued on Nov 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Leland C. Lenahan, M.D. located?
The NPPES record lists a practice address at 2800 W 95TH St, Evergreen Park, IL, 60805. Phone: (708) 422-4221. Providers update this record themselves, so call before visiting.
How can I verify Leland C. Lenahan, M.D.'s license?
NPPES lists Illinois license number 036106714, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Leland C. Lenahan, M.D. prescribe under Medicare Part D?
In 2024, Leland C. Lenahan, M.D. had 320 Medicare Part D claims for 235 beneficiaries; the average among emergency medical services (emergency medicine) physician prescribers was 292. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.