Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Nancy Carolyn O'Neal, MD

Individual provider Surgery Physician · NPI 1669433991

Dr. Nancy Carolyn O'Neal, MD practises General Surgery in Medford, Oregon. Graduated from University of Texas Southwestern Medical School at Dallas in 1991, 35 years ago. Practices with Asante Physician Partners, a 225-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
35
Trained at
University of Texas Southwestern Medical School at Dallas
Licensed in
OR
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3932 Southview Ter
Medford, OR 97504-9367
Phone: (541) 261-1122
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence MD27835 (OR)

Record details

NPI number1669433991
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 28, 2006
Last updated in NPPESSeptember 27, 2021
Certification dateSeptember 27, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS
Graduated 1991 (35 years in practice)
Group practice Asante Physician Partners — 225 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Mastectomy 51 times · 95th percentile
Colonoscopy 1–10 times
Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients103
Services billed 241 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Asante Ashland Community Hospital Hospital · Ashland, OR · listed as Asante Ashland Community Hospital, LLC
  • Asante Rogue Regional Medical Center Hospital · Medford, OR

Colleagues at Asante Physician Partners

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 225 clinicians in the practice; 12 are shown here.

Other providers in Medford