DR. ALEC GERARD LESKO II D.O
NPI 1154769107
Emergency Medicine in Trenton, MI
About Dr. Alec Gerard Lesko Ii D.o NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALEC GERARD LESKO II D.O (NPI 1154769107) is an individual emergency medicine provider in Trenton, Michigan, licensed in Michigan (5101020647) and active in the NPI registry since June 2013. 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. Alec Gerard Lesko Ii D.o is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
7Medicare enrollment records show Alec Lesko reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Grand Blanc, MI 48439
- Reassigned Medicare billing, Michigan enrollment
- 41 clinicians in this Medicare group
Grand Blanc, MI 48439
- Reassigned Medicare billing, Michigan enrollment
- 43 clinicians in this Medicare group
Willoughby, OH 44094
- Reassigned Medicare billing, Ohio enrollment
- 89 clinicians in this Medicare group
West Branch, MI 48661
- Reassigned Medicare billing, Michigan enrollment
- 61 clinicians in this Medicare group
Lancaster, OH 43130
- Reassigned Medicare billing, Ohio enrollment
- 78 clinicians in this Medicare group
Cadillac, MI 49601
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Caberfae Emergency Group PC
- 92 clinicians in this Medicare group
- Reassigned Medicare billing, Michigan enrollment
- 163 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 5
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 48183 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.
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 Alec Lesko's NPI number?
The NPI number for Alec Lesko is 1154769107. It was assigned to this individual provider in the NPPES registry on June 12, 2013.
Where is Alec Lesko located?
Alec Lesko practices at 5450 Fort St, Trenton, MI 48183. The listed phone number is (734) 671-3297.
What is Alec Lesko's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Alec Lesko enrolled in Medicare?
Yes. Alec Lesko is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alec Lesko's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alec Lesko reassigns Medicare benefits to 7 organizations: Emergency Medicine Physicians Of Genesee County, PLLC (Grand Blanc, MI), Observation Medicine Group PLLC (Grand Blanc, MI), Emergency Medicine Physicians Of Lake County Ltd (Willoughby, OH), Northern Michigan Emergency Physicians, LLP (West Branch, MI), Emergency Medicine Physicians Of Lancaster, Ltd. (Lancaster, OH) and 2 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 Alec Lesko'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 Alec Lesko was last updated on June 12, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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. Alec Gerard Lesko II, D.O · NPI 1154769107
Emergency Medicine physician in Trenton, Michigan. Individual provider, active in the CMS NPPES registry since June 12, 2013.
## Identity
- **NPI:** 1154769107 (Entity type: Individual)
- **Enumerated:** June 12, 2013
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 5101020647 (Michigan)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 5450 FORT ST, Trenton, MI 48183-4601
- **Phone:** (734) 671-3297
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Emergency Medicine Physicians Of Genesee County, PLLC (NPI 1275899171, Grand Blanc, MI); Observation Medicine Group PLLC (NPI 1194084111, Grand Blanc, MI); Emergency Medicine Physicians Of Lake County Ltd (NPI 1154763944, Willoughby, OH); Northern Michigan Emergency Physicians, LLP (NPI 1528083292, West Branch, MI); Emergency Medicine Physicians Of Lancaster, Ltd. (NPI 1881025344, Lancaster, OH); and 2 more · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** June 12, 2013
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Source: [NPI Profile](https://npiprofile.com/npi/1154769107) · Data from the CMS NPPES public registry.