ETHAN BRIAN LEMKE MD
NPI 1427745876
Emergency Medicine in Cedar Rapids, IA
About Ethan Brian Lemke Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ETHAN BRIAN LEMKE MD (NPI 1427745876) is an individual emergency medicine provider in Cedar Rapids, Iowa, licensed in Iowa (MD-56540) and active in the NPI registry since April 2023. He is enrolled in Medicare PECOS, is affiliated with Mercy Medical Center - Cedar Rapids, and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
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
Ethan Brian Lemke Md 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
2Medicare enrollment records show Ethan Lemke reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Cedar Rapids, IA 52403
- Reassigned Medicare billing, Iowa enrollment
- 51 clinicians in this Medicare group
Iowa City, IA 52245
- Reassigned Medicare billing, Iowa enrollment
- 55 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Medical Center - Cedar Rapids
Acute Care Hospitals · Cedar Rapids, IAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 52403 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.
CEDAR RAPIDS, IA 52403
CEDAR RAPIDS, IA 52403
CEDAR RAPIDS, IA 52403
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 Ethan Lemke's NPI number?
The NPI number for Ethan Lemke is 1427745876. It was assigned to this individual provider in the NPPES registry on April 18, 2023.
Where is Ethan Lemke located?
Ethan Lemke practices at 701 10th St SE, Cedar Rapids, IA 52403. The listed phone number is (319) 398-6297.
What is Ethan Lemke's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Ethan Lemke enrolled in Medicare?
Yes. Ethan Lemke 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 Ethan Lemke's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ethan Lemke reassigns Medicare benefits to 2 organizations: Linn County Emergency Medicine PC (Cedar Rapids, IA) and Johnson County Emergency Medicine, Plc (Iowa City, IA). 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 Ethan Lemke's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ethan Lemke accept?
Health plans from Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Ethan Lemke 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 Ethan Lemke affiliated with any hospitals?
According to CMS data, Ethan Lemke is affiliated with Mercy Medical Center - Cedar Rapids.
When was this NPI record last updated?
The NPPES record for Ethan Lemke was last updated on July 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Ethan Brian Lemke, MD · NPI 1427745876
Emergency Medicine physician in Cedar Rapids, Iowa. Individual provider, active in the CMS NPPES registry since April 18, 2023.
## Identity
- **NPI:** 1427745876 (Entity type: Individual)
- **Enumerated:** April 18, 2023
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MD-56540 (Iowa)
- **Sole proprietor:** No
## Practice location
- **Address:** 701 10TH ST SE, Cedar Rapids, IA 52403-1251
- **Phone:** (319) 398-6297
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Linn County Emergency Medicine PC (NPI 1679521124, Cedar Rapids, IA); Johnson County Emergency Medicine, Plc (NPI 1316582729, Iowa City, IA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** July 23, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1427745876) · Data from the CMS NPPES public registry.