What is Karen Nielsen's specialty?

Karen Nielsen (NPI 1902980816) is a Medicare-billing provider whose primary specialty is Anesthesiology in Durham, NC.

Where does Karen Nielsen practice?

Karen Nielsen practices in Durham, NC, based on the location reported in the CMS Medicare provider datasets for NPI 1902980816.

How much does Medicare pay Karen Nielsen?

Karen Nielsen (NPI 1902980816) received approximately $32K in total Medicare Part B payments, serving 350 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1902980816

Karen Nielsen

PRACTICEPRIVATE DIAGNOSTIC CLINIC, PLLCSee all providers at this practice →

AnesthesiologyDurham, NCI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

248

Unique beneficiaries

—

Total services

254

Distinct HCPCS

Medicare payment

$19K

Peer benchmark

Total Medicare services vs. 1,034 Anesthesiology providers in NC — above median (cohort median 259).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

No data available for this provider in 2025.

REFERRAL NETWORK

Where Karen Nielsen's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 16 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
OLSON, RONALD	46	46
Neil Freedman Cardiology · Durham, NC	31	31
David Ruch Orthopedic Surgery · Durham, NC	26	78
Augustus Grant Clinical Cardiac Electrophysiology · Durham, NC	22	23
HOOGE, NICOLETTE	21	21
Tammy Schaeffer Certified Registered Nurse Anesthetist (CRNA) · Durham, NC	19	19
Donald Moede Certified Registered Nurse Anesthetist (CRNA) · Durham, NC	17	17
Christopher Kontos Cardiology · Durham, NC	16	16
PARRILLA CASTELLAR, EDGARDO	13	18
Susan Tomso Certified Registered Nurse Anesthetist (CRNA) · Durham, NC	13	13
Eun-Sil Hwang Surgical Oncology · San Francisco, CA	13	56
Andrew Peterson Urology · Durham, NC	13	33

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events