LEONARD NADONG LAMSEN M.D.
NPI 1902006257
Emergency Medicine in Memphis, TN
About Leonard Nadong Lamsen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LEONARD NADONG LAMSEN M.D. (NPI 1902006257) is an individual emergency medicine provider in Memphis, Tennessee, licensed in Tennessee (MD46106) and active in the NPI registry since July 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Leonard Nadong Lamsen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Leonard Lamsen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Newport, TN 37821
- Reassigned Medicare billing, Tennessee enrollment
- 664 clinicians in this Medicare group
Maysville, KY 41056
- Reassigned Medicare billing, Tennessee enrollment
- 1,071 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 3
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 38128 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 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MEMPHIS, TN 38128
MEMPHIS, TN 38128
MEMPHIS, TN 38128
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 Leonard Lamsen's NPI number?
The NPI number for Leonard Lamsen is 1902006257. It was assigned to this individual provider in the NPPES registry on July 24, 2007.
Where is Leonard Lamsen located?
Leonard Lamsen practices at 3030 Covington Pike Suite 100, Memphis, TN 38128. The listed phone number is (901) 383-8889.
What is Leonard Lamsen's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Leonard Lamsen enrolled in Medicare?
Yes. Leonard Lamsen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Leonard Lamsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Leonard Lamsen reassigns Medicare benefits to 2 organizations: Emergency Coverage, LLC (Newport, TN) and Southeastern Emergency Physicians LLC (Maysville, KY). 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 Leonard Lamsen'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 Leonard Lamsen was last updated on April 24, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.