KAREN J LEFRAK MD
NPI 1972582989
Emergency Medicine in Elkton, MD
About Karen J Lefrak Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN J LEFRAK MD (NPI 1972582989) is an individual emergency medicine provider in Elkton, Maryland, licensed in Maryland (D0062643) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS, is affiliated with Union Hospital Of Cecil County, and is a graduate of Jefferson Medical College Of Thomas Jefferson University (2002).
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 and accepts Medicare assignment
Karen J Lefrak 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 Karen Lefrak reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Elkton, MD 21921
- Reassigned Medicare billing, Maryland enrollment
- 135 clinicians in this Medicare group
Newark, DE 19711
- Reassigned Medicare billing, Delaware enrollment
- 18 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Union Hospital Of Cecil County
Acute Care Hospitals · Elkton, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21921 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.
ELKTON, MD 21921
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 Karen Lefrak's NPI number?
The NPI number for Karen Lefrak is 1972582989. It was assigned to this individual provider in the NPPES registry on January 10, 2006.
Where is Karen Lefrak located?
Karen Lefrak practices at 106 Bow St, Elkton, MD 21921. The listed phone number is (410) 387-4000.
What is Karen Lefrak's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Karen Lefrak enrolled in Medicare?
Yes. Karen Lefrak 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 Karen Lefrak's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Lefrak reassigns Medicare benefits to 2 organizations: Christiana Care Emergency Physicians LLC (Elkton, MD) and Newark Emergency Center (Newark, DE). 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 Karen Lefrak's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Karen Lefrak affiliated with any hospitals?
According to CMS data, Karen Lefrak is affiliated with Union Hospital Of Cecil County.
When was this NPI record last updated?
The NPPES record for Karen Lefrak was last updated on July 13, 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.
# Karen J Lefrak, MD · NPI 1972582989
Emergency Medicine physician in Elkton, Maryland. Individual provider, active in the CMS NPPES registry since January 10, 2006.
## Identity
- **NPI:** 1972582989 (Entity type: Individual)
- **Enumerated:** January 10, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** D0062643 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 106 BOW ST, Elkton, MD 21921
- **Phone:** (410) 387-4000
## 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): Christiana Care Emergency Physicians LLC (NPI 1871375899, Elkton, MD); Newark Emergency Center (NPI 1700864576, Newark, DE) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Jefferson Medical College Of Thomas Jefferson University, class of 2002
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1972582989) · Data from the CMS NPPES public registry.