DR. KARISA LEE HAJEK M.D.
NPI 1013322866
Internal Medicine in Omaha, NE
About Dr. Karisa Lee Hajek M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KARISA LEE HAJEK M.D. (NPI 1013322866) is an individual internal medicine provider in Omaha, Nebraska, licensed in Nebraska (30612) and active in the NPI registry since June 2014. She is enrolled in Medicare PECOS, is affiliated with The Nebraska Medical Center, and maintains a secondary practice location in Omaha.
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 and accepts Medicare assignment
Dr. Karisa Lee Hajek M.d. 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 Reassignment
Medicare enrollment records show Karisa Hajek reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Omaha, NE 68198
- Reassigned Medicare billing, Nebraska enrollment
- 2,154 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 2
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.
The Nebraska Medical Center
Acute Care Hospitals · Omaha, NEPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 68131 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 19
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 Karisa Hajek's NPI number?
The NPI number for Karisa Hajek is 1013322866. It was assigned to this individual provider in the NPPES registry on June 30, 2014.
Where is Karisa Hajek located?
Karisa Hajek practices at 139 S 40th St, Omaha, NE 68131. The listed phone number is (402) 595-3939.
What is Karisa Hajek's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Karisa Hajek enrolled in Medicare?
Yes. Karisa Hajek 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 organization bills Medicare for Karisa Hajek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karisa Hajek reassigns Medicare benefits to Unmc Physicians (Omaha, NE). The 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 Karisa Hajek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karisa Hajek accept?
Health plans from Blue Cross and Blue Shield of Nebraska, Oscar Insurance Company and Wellmark Health Plan of Iowa, Inc. list Karisa Hajek 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 Karisa Hajek affiliated with any hospitals?
According to CMS data, Karisa Hajek is affiliated with The Nebraska Medical Center.
When was this NPI record last updated?
The NPPES record for Karisa Hajek was last updated on August 21, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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. Karisa Lee Hajek, M.D. · NPI 1013322866
Internal Medicine physician in Omaha, Nebraska. Individual provider, active in the CMS NPPES registry since June 30, 2014.
## Identity
- **NPI:** 1013322866 (Entity type: Individual)
- **Enumerated:** June 30, 2014
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 30612 (Nebraska)
- **Sole proprietor:** No
## Practice location
- **Address:** 139 S 40TH ST, Omaha, NE 68131
- **Phone:** (402) 595-3939 · **Fax:** (402) 595-3898
## 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:** Unmc Physicians (NPI 1417912114, Omaha, NE), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Nebraska College Of Medicine, class of 2014
## Record status
- **NPPES last updated:** August 21, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1013322866) · Data from the CMS NPPES public registry.