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Dr. Nancy L. Ott, MD

Allergy & Immunology (Allergy & Immunology Physician)

  • Medicare participating

At a glance

Years since graduation
42
In the NPI registry since
2006
Medicare patients seen, 2024
71

The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is

Education and training

  • 1984Medical school: University of Minnesota Medical School
  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).

Specialties and state licenses

  • Allergy & Immunology Physician primary
    MN license 29631

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Allergy & Immunology per capita by county →

Where they work

Medical groups

Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.

Medicare patients and services

Medicare patients, 2024
71
Services billed
1,176
Patients’ average age
73
Most frequent Medicare services, 2023
ServiceTimesPatients
Professional service for preparation and provision of 1 or more antigens60012
Established patient office or other outpatient visit, 30-39 minutes6951
Test to measure expiratory airflow and volume5039
Established patient office or other outpatient visit, 20-29 minutes2523

Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.

Medicare prescriptions

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Payments from drug and device companies

In 2025, 16 companies reported 26 payments worth $529 in total to this clinician.

By company
Takeda Pharmaceuticals U.S.A., Inc.$105
GlaxoSmithKline, LLC.$57.74
Cycle Pharmaceuticals Inc$46.06
Pfizer Inc.$37.22
Axsome Therapeutics, Inc.$32.04
Biocryst US Sales Co., LLC$30.61
AbbVie Inc.$30.01
Phadia US Inc.$29.84
By type
Food and Beverage$529

From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.

Who received the most in Minnesota →

Other Allergy & Immunology clinicians in Minneapolis

Sources

NPI registry (CMS NPPES, November 2026; record last updated November 2, 2018), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1295840783. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.