Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Derek J Orton, MD

Individual provider Sports Medicine (Orthopaedic Surgery) Physician · NPI 1790742724

Derek J Orton, MD practises Orthopedic Surgery in Greenfield, Wisconsin. Graduated from Medical College of Wisconsin in 2000, 26 years ago. Practices with Aurora Advanced Healthcare, Inc, a 1,101-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
26
Trained at
Medical College of Wisconsin
Licensed in
WI
In the registry since
2006
Specialties on file
2
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

9000 W Sura Ln
Greenfield, WI 53228-3477
Phone: (262) 329-2225
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2801 W Kinnickinnic River Pkwy, Milwaukee, WI 53215-3669 — (414) 649-7900

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 49025 (WI)
Sports Medicine (Orthopaedic Surgery) Physician Taxonomy 207XX0005X · Licence 49025 (WI)

Record details

NPI number1790742724
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 26, 2006
Last updated in NPPESApril 1, 2024
Certification dateApril 1, 2024

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2000 (26 years in practice)
Group practice Aurora Advanced Healthcare, Inc. — 1101 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

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.

Spinal fusion 55 times · 58th percentile
Laminectomy or laminotomy (partial removal of spine bones) 15 times · 41st percentile

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 patients223
Services billed 400 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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.

Colleagues at Aurora Advanced Healthcare, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1101 clinicians in the practice; 12 are shown here.

Other providers in Greenfield