DR. NICHOLAS DONALD KLEMEN M.D.
NPI 1730474412
Surgery - Surgical Oncology in Durham, NC
About Dr. Nicholas Donald Klemen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. NICHOLAS DONALD KLEMEN M.D. (NPI 1730474412) is an individual surgical oncology provider in Durham, North Carolina, licensed in North Carolina (2025-04237) and active in the NPI registry since June 2011. He is enrolled in Medicare PECOS, is affiliated with Duke University Hospital, and is a graduate of Indiana University School Of Medicine (2011).
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
Dr. Nicholas Donald Klemen 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 Reassignments
2Medicare enrollment records show Nicholas Klemen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Durham, NC 27710
- Reassigned Medicare billing, North Carolina enrollment
- 3,671 clinicians in this Medicare group
Durham, NC 27704
- Reassigned Medicare billing, North Carolina enrollment
- 1,482 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.
Duke University Hospital
Acute Care Hospitals · Durham, NCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 27710 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.
DURHAM, NC 27710
DURHAM, NC 27710
DURHAM, NC 27710
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 Nicholas Klemen's NPI number?
The NPI number for Nicholas Klemen is 1730474412. It was assigned to this individual provider in the NPPES registry on June 10, 2011.
Where is Nicholas Klemen located?
Nicholas Klemen practices at Duke University Medical Ctr Box 3654, Durham, NC 27710. The listed phone number is (812) 345-1341.
What is Nicholas Klemen's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Oncology, with taxonomy code 2086X0206X.
Is Nicholas Klemen enrolled in Medicare?
Yes. Nicholas Klemen 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 Nicholas Klemen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Klemen reassigns Medicare benefits to 2 organizations: Duke Health Integrated Practice, Inc. (Durham, NC) and Duke University Health System, Inc. (Durham, NC). 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 Nicholas Klemen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Nicholas Klemen accept?
Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee and Cigna Healthcare list Nicholas Klemen 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 Nicholas Klemen affiliated with any hospitals?
According to CMS data, Nicholas Klemen is affiliated with Duke University Hospital.
When was this NPI record last updated?
The NPPES record for Nicholas Klemen was last updated on January 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Dr. Nicholas Donald Klemen, M.D. · NPI 1730474412
Surgical Oncology physician in Durham, North Carolina. Individual provider, active in the CMS NPPES registry since June 10, 2011.
## Identity
- **NPI:** 1730474412 (Entity type: Individual)
- **Enumerated:** June 10, 2011
- **Primary specialty:** Surgery - Surgical Oncology · taxonomy 2086X0206X
- **State license:** 2025-04237 (North Carolina)
- **Sole proprietor:** Yes
## Practice location
- **Address:** DUKE UNIVERSITY MEDICAL CTR, BOX 3654, Durham, NC 27710-0001
- **Phone:** (812) 345-1341
## 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): Duke Health Integrated Practice, Inc. (NPI 1205553369, Durham, NC); Duke University Health System, Inc. (NPI 1376574798, Durham, NC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Indiana University School Of Medicine, class of 2011
## Record status
- **NPPES last updated:** January 8, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1730474412) · Data from the CMS NPPES public registry.