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

Adam Michael Olszewski, MD

Individual provider Neurological Surgery Physician · NPI 1164818753

Adam Michael Olszewski, MD practises Neurosurgery in Springfield, Missouri. Qualified in 2015, 11 years ago. Practices with Mercy Clinic Joplin LLC, a 295-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Arkansas, California and Missouri.

Years since qualifying
11
Licensed in
AR, CA, MO
In the registry since
2015
Specialties on file
3
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

1229 E Seminole St Ste 220
Springfield, MO 65804-2227
Phone: (417) 820-2064
Fax: (417) 820-8868
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 7001 Rogers Ave, Fort Smith, AR 72903-4073 — (479) 274-2370

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence E-16879 (AR)
Neurological Surgery Physician Taxonomy 207T00000X · Licence 2023030152 (MO)
Neurological Surgery Physician Taxonomy 207T00000X · Licence A175624 (CA)

Record details

NPI number1164818753
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 9, 2015
Last updated in NPPESJanuary 4, 2025
Certification dateJanuary 4, 2025

Medicare enrollment

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

Medicare specialtyNEUROSURGERY
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Mercy Clinic Joplin Llc — 295 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 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 22 times · 38th percentile
Laminectomy or laminotomy (partial removal of spine bones) 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 patients203
Services billed 330 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 $18 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 Mercy Clinic Joplin LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 295 clinicians in the practice; 12 are shown here.

Other providers in Springfield