Karen Nielsen
What this data tells you about Nielsen
Karen Nielsen is an anesthesiology specialist in Durham, NC, with 19 years of NPI registration. Based on federal Medicare data, Nielsen performed 160 Medicare services in 2023. These records do not provide a deduplicated patient total.
Between the years covered by Open Payments, Nielsen received a total of $66 from 1 pharmaceutical and/or device company across 1 payment records. A record can group multiple payments. These transfers are publicly reported through CMS Open Payments. Disclosure alone does not establish their effect on care. A reliable breakdown by payment category is not available in this snapshot. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Nielsen is Very High — reflecting how much public federal data is available about this provider. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary — 2023
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Anesthesia for skin procedures on arms, legs, or front body This code covers anesthesia services provided for surgical procedures performed on the skin of the arms, legs, or anterior trunk. |
46 | $75 | $1,152 |
| Anesthesia for shoulder and underarm procedure Anesthesia administered for surgical procedures involving the nerves, muscles, tendons, fascia, and bursae of the shoulder and underarm area. |
27 | $156 | $1,896 |
| Anesthesia for head, neck, or upper back procedure Administration of anesthesia for surgical procedures involving the skin, muscles, or nerves of the head, neck, or upper back. |
24 | $81 | $1,363 |
| Anesthesia for lower leg, ankle, or foot bone procedure Administration of anesthesia during surgical procedures involving the bones of the lower leg, ankle, or foot. |
15 | $147 | $1,889 |
| Anesthesia for neck procedure, age 1 year or older Administration of anesthesia for surgical procedures performed on the neck area in patients aged one year or older. |
13 | $121 | $1,783 |
| Anesthesia for urinary system procedure via urethra Administration of anesthesia for a surgical procedure on the urinary system performed through the urethra. |
12 | $57 | $905 |
| Anesthesia for kidney stone removal with endoscope Anesthesia provided during the fragmentation, manipulation, or removal of a kidney stone using an endoscope. |
12 | $87 | $1,260 |
| Anesthesia for anus and rectum procedure Administration of anesthesia during a surgical or diagnostic procedure involving the anus and rectum. |
11 | $79 | $1,252 |
Industry Payment Transparency
Open Payments through 2018 ↗Payment categories are unavailable while the source breakdown is being rebuilt. Company and year totals do not identify how much belongs to each category.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2018)
Associated products mentioned in payments ›
Data Sources
| Provider Registry | ✓ NPPES | NPPES snapshot; verify current record |
| Medicare Enrollment | ✓ PECOS | PECOS snapshot |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2018 |
| Disciplinary History | — Not included | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This reflects how much public data is available about a provider. How we calculate this →
Summary
Nielsen is a mixed practice specialist, with moderate Medicare volume, with 19 years of NPI registration.
This summary is auto-generated from federal data, describing data availability and patterns. Read our methodology →
Frequently Asked Questions
Is Nielsen experienced with anesthesia for skin procedures on arms, legs, or front body?
Does Nielsen receive payments from pharmaceutical companies?
How do Nielsen's costs compare to other anesthesiologists in Durham?
What does Data Coverage mean?
Is this data up to date?
Explore related providers
This page combines public CMS records with calculated summaries and explanatory procedure labels. These transformations are not verbatim federal records. Sources: NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. Data Coverage reflects data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology