DR. MARGARET NORMA KOSEK M.D.
NPI 1043376791
Internal Medicine - Infectious Disease in Charlottesville, VA
About Dr. Margaret Norma Kosek M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARGARET NORMA KOSEK M.D. (NPI 1043376791) is an individual infectious disease provider in Charlottesville, Virginia, licensed in Virginia (0101230225) and active in the NPI registry since December 2006. She is enrolled in Medicare PECOS, is affiliated with University Of Virginia Medical Center, and maintains a secondary practice location in Iquitos.
NPPES Registry Identity
Specialties & Licenses
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. Margaret Norma Kosek 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 Margaret Kosek reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Charlottesville, VA 22911
- Reassigned Medicare billing, Virginia enrollment
- 2,820 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.
University Of Virginia Medical Center
Acute Care Hospitals · Charlottesville, VAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 22903 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Margaret Kosek's NPI number?
The NPI number for Margaret Kosek is 1043376791. It was assigned to this individual provider in the NPPES registry on December 28, 2006.
Where is Margaret Kosek located?
Margaret Kosek practices at 1300 Jefferson Park Ave Fl 5, Charlottesville, VA 22903. The listed phone number is (434) 982-1700.
What is Margaret Kosek's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Margaret Kosek enrolled in Medicare?
Yes. Margaret Kosek 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 Margaret Kosek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Margaret Kosek reassigns Medicare benefits to University Of Virginia Physicians Group (Charlottesville, VA). 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 Margaret Kosek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Margaret Kosek accept?
Health plans from Oscar Health list Margaret Kosek 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 Margaret Kosek affiliated with any hospitals?
According to CMS data, Margaret Kosek is affiliated with University Of Virginia Medical Center.
When was this NPI record last updated?
The NPPES record for Margaret Kosek was last updated on February 19, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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. Margaret Norma Kosek, M.D. · NPI 1043376791
Infectious Disease physician in Charlottesville, Virginia. Individual provider, active in the CMS NPPES registry since December 28, 2006.
## Identity
- **NPI:** 1043376791 (Entity type: Individual)
- **Enumerated:** December 28, 2006
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 0101230225 (Virginia)
- **Sole proprietor:** No
## Practice location
- **Address:** 1300 JEFFERSON PARK AVE FL 5, Charlottesville, VA 22903
- **Phone:** (434) 982-1700 · **Fax:** (434) 982-3268
## 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:** University Of Virginia Physicians Group (NPI 1033138250, Charlottesville, VA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Boston University School Of Medicine, class of 1997
## Record status
- **NPPES last updated:** February 19, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1043376791) · Data from the CMS NPPES public registry.