Derek J. Orton, MD
Orthopaedic Surgery Physician · Greenfield, WI
Derek J. Orton, MD is an orthopaedic surgery physician with a practice address in Greenfield, Wisconsin, and NPI 1790742724, issued on Apr 26, 2006. Check the license (Wisconsin 49025, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Derek J. Orton
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 49025 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9000 W Sura LN, Greenfield, WI 53228
- Phone
- (262) 329-2225
- Enumerated
- Apr 26, 2006
- Record last updated
- Apr 1, 2024
- Medicaid ID
- 34841100 WI
- Medicare enrollment
- Enrolled (PECOS I20060726000168); accepts Medicare assignment
- Medical or professional school
- Medical College Of Wisconsin, 2000
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 656 in Wisconsin → Look up another NPI →
Also registered at 9000 W Sura LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Donna Abler, OTROccupational Therapist1396039939
- Alvie Ahsan, MDPediatrics Physician1962909440
- Kelli Barrett, SLPSpeech-Language Pathologist1982066569
- Brian Bartletti, PT, DPTPhysical Therapist1366261661
- Paige Bauer, PTPhysical Therapist1538901442
- Caylee Beckman, DPT, PT, LAT, ATCPhysical Therapist1316529217
Verify Derek J. Orton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 49025Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% more Medicare Part D claims than the average orthopaedic surgery physician in 2024
668 Medicare Part D claims for 158 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. 400 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen165 claims
- Oxycodone-Acetaminophen97 claims
- Tizanidine Hcl78 claims
- Oxycodone Hcl75 claims
- Gabapentin69 claims
- Tramadol Hcl50 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Aurora Advanced Healthcare, Inc.Mequon, WI
- Aurora Medical Group, Inc.Burlington, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derek J. Orton among 656 orthopaedic surgery physician records in Wisconsin
Derek J. Orton, MD is one of 656 orthopaedic surgery physician records with a practice address in Wisconsin. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 41% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2000 · median 2006 among the 401 with a school on file
- Record last updated2024 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Wisconsin
There are 656 orthopaedic surgery physician records in Wisconsin.
All 656 in Wisconsin → Every provider in Greenfield → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Steven Anderson, M.D.West Allis, WI 532271285648691
- Alvin Krug, M.D.West Allis, WI 532271780698159
- Jeffrey Larson, MDWest Allis, WI 532271124018809
- Justin Peterson, D.O.West Allis, WI 532271033558010
- Lisa Sienkiewicz, M.D.West Allis, WI 532271942566906
- Michael Stoesz, MDWest Allis, WI 532271689833774
- Marc-Antoine Tremblay, M.D.West Allis, WI 532271558892232
- Lee Tyne, MDWest Allis, WI 532271922098714
Common questions
What is Derek J. Orton, MD's NPI number?
Derek J. Orton, MD's National Provider Identifier (NPI) is 1790742724, issued on Apr 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Derek J. Orton, MD located?
The NPPES record lists a practice address at 9000 W Sura LN, Greenfield, WI, 53228. Phone: (262) 329-2225. Providers update this record themselves, so call before visiting.
How can I verify Derek J. Orton, MD's license?
NPPES lists Wisconsin license number 49025, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Derek J. Orton, MD prescribe under Medicare Part D?
In 2024, Derek J. Orton, MD had 668 Medicare Part D claims for 158 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.