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

Mark J Tomsic, AA

Individual provider Anesthesiology Physician · NPI 1205063161

Mark J Tomsic, AA is an Anesthesiology Assistant in Springfield, Ohio. Qualified in 2009, 17 years ago. Practices with Mercy Anesthesiologists Inc, a 17-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
17
Licensed in
OH
In the registry since
2009
Specialties on file
2
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Practice location Address checks out

1343 N Fountain Blvd
Springfield, OH 45504-1422
Phone: (937) 390-5029
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 520 W 10th Ave, Columbus, OH 43210-1328 — (614) 293-8487

Specialties & licences

Anesthesiologist Assistant (primary) Taxonomy 367H00000X · Licence 67.000153 (OH)
Anesthesiology Physician Taxonomy 207L00000X · Licence 67.000153 (OH)

Record details

NPI number1205063161
Entity typeIndividual (Type 1)
GenderMale
Credentials AA
Sole proprietorNo
NPI enumeratedJune 18, 2009
Last updated in NPPESSeptember 15, 2026
Certification dateSeptember 15, 2026

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY ASSISTANT
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Mercy Anesthesiologists Inc — 17 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients161
Services billed 164 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.

  • Ohio Valley Surgical Hospital Hospital · Springfield, OH

Colleagues at Mercy Anesthesiologists Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 17 clinicians in the practice; 12 are shown here.

Other providers in Springfield