MAXWELL LEFFLER DO
NPI 1255893822
Emergency Medicine in Adrian, MI
About Maxwell Leffler Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MAXWELL LEFFLER DO (NPI 1255893822) is an individual emergency medicine provider in Adrian, Michigan, licensed in Michigan (5101026751) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS and maintains a secondary practice location in Clinton Twp.
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 (PECOS)
Maxwell Leffler Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
6Medicare enrollment records show Maxwell Leffler reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Adrian, MI 49221
- Reassigned Medicare billing, Michigan enrollment
- 95 clinicians in this Medicare group
Durand, MI 48429
- Reassigned Medicare billing, Michigan enrollment
- 328 clinicians in this Medicare group
Owosso, MI 48867
- Reassigned Medicare billing, Michigan enrollment
- 52 clinicians in this Medicare group
Grand Rapids, MI 49525
- Reassigned Medicare billing, Michigan enrollment
- 54 clinicians in this Medicare group
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 265 clinicians in this Medicare group
Grand Rapids, MI 49503
- Reassigned Medicare billing, Michigan enrollment
- 192 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 49221 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 11
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ADRIAN, MI 49221
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 Maxwell Leffler's NPI number?
The NPI number for Maxwell Leffler is 1255893822. It was assigned to this individual provider in the NPPES registry on April 3, 2019.
Where is Maxwell Leffler located?
Maxwell Leffler practices at 5640 N Adrian Hwy, Adrian, MI 49221. The listed phone number is (517) 920-3375.
What is Maxwell Leffler's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Maxwell Leffler enrolled in Medicare?
Yes. Maxwell Leffler is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Maxwell Leffler's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Maxwell Leffler reassigns Medicare benefits to 6 organizations: Sound Physicians Emergency Medicine Of Michigan, PLLC (Adrian, MI), Memorial Hospital (Durand, MI), Ecs Central Michigan PC (Owosso, MI), Rightcare Clinic PC (Grand Rapids, MI), Ecs Western Michigan PC (Grand Rapids, MI) and 1 more organization, 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 Maxwell Leffler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Maxwell Leffler accept?
Health plans from Priority Health list Maxwell Leffler 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.
When was this NPI record last updated?
The NPPES record for Maxwell Leffler was last updated on September 16, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.