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

Brett P Siemon

Individual provider Anesthesiologist Assistant · NPI 1073132437

Brett P Siemon is an Anesthesiology Assistant in Columbus, Ohio. Qualified in 2020, 6 years ago. Practices with Osu Observation Medicine, LLC, a 419-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Ohio and Wisconsin.

Years since qualifying
6
Licensed in
OH, WI
In the registry since
2020
Specialties on file
3
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2121 Kenny Rd
Columbus, OH 43210-3100
Phone: (614) 293-8487
Fax: (614) 293-8153
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 2900 W Oklahoma Ave, Milwaukee, WI 53215-4330 — (414) 649-6000

Specialties & licences

Anesthesiologist Assistant (primary) Taxonomy 367H00000X · Licence 67.000422 (OH)
Anesthesiologist Assistant Taxonomy 367H00000X
Anesthesiologist Assistant Taxonomy 367H00000X · Licence 164 (WI)

Record details

NPI number1073132437
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 15, 2020
Last updated in NPPESAugust 6, 2024
Certification dateAugust 6, 2024

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY ASSISTANT
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Osu Observation Medicine, Llc — 419 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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 patients174
Services billed 178 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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $15 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Osu Observation Medicine, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 419 clinicians in the practice; 12 are shown here.

Other providers in Columbus