Providers

Experienced. Compassionate. Dedicated to Your Care.

Going into a procedure that requires anesthesia can bring up questions, and understanding who’s caring for you is important. Here at MAAC, your safety and comfort are our top priorities, and that’s why we employ a highly skilled team, including 8 Anesthesiologists and 30 Certified Registered Nurse Anesthetists (CRNAs) to manage your care.

While both Anesthesiologists and Certified Registered Nurse Anesthetists (CRNAs) are essential and expertly trained in anesthesia, they have different educational paths and scopes of practice.

Anesthesiologist (MD/DO)

  • An anesthesiologist is a medical doctor (MD or DO) who has completed medical school followed by a four-year residency specializing in anesthesiology.
  • They specialize in perioperative care, meaning they assess your health before surgery, administer and manage your anesthesia during the procedure to control pain and consciousness, and oversee your recovery afterward.
  • They are also experts in acute and chronic pain management.

Nurse Anesthetist (CRNA)

  • A CRNA is a highly trained advanced practice nurse who specializes in anesthesia.
  • They are responsible for assessing patients, administering anesthesia, monitoring vital signs, and managing the anesthesia throughout surgical procedures or medical interventions.
  • At MAAC, our CRNAs work in a collaborative care team model, often partnering directly with anesthesiologists, surgeons, and other operating room staff to provide seamless and comprehensive care.

Anesthesiologists

Dr. Tom Meyer

Thomas Meyer

Residency: University of Kentucky
Fellowship: University of Iowa
(Cardiovascular and Thoracic Anesthesia with TEE Testamur)
Years of Experience: 18
Years at MAAC: 15

Lucas Blount

Lucas Blount

Residency: University of Missouri (Anesthesia and Internal Medicine)
Years of Experience:
6
Years at MAAC:
6

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Mark Cohen

Residency: UMKC St. Luke’s Mid- America Heart Institute
MAAC Founding Member
Years of Experience: 31
Years at MAAC:27

Dr. Paul Thompson

Paul Thompson

Residency: University of Alabama Birmingham
MAAC Founding Member
Years of Experience:
31
Years at MAAC:
26

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Brian Hecht

Residency: WUSL Washington University
Years of Experience: 
30
Years at MAAC:
19

Dr. James Voon

James Voon

Residency: University of Missouri
Fellowship: University of Missouri (Regional Anesthesia)
Years of Experience: 6
Years at MAAC: 1

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Allen Cass

Residency: University of Wisconsin
Years of Experience: 
32
Years at MAAC:
20

Dr. James Zaner

James Zaner

Residency: Mayo Clinic Rochester
MAAC Founding Member
Years of Experience:
25
Years at MAAC:
25

Paul Thompson

Residency: University of Alabama Birmingham
Years of Experience:
31
Years at Boone Health:
26

Call Team

Steve Siebert

Steve Seibert

CRNA

Education: Webster University
Years of Experience: 20
Years at MAAC:
20

Scott Borughton

Scott Broughton

CRNA

Education: Missouri State University
Years of Experience: 16
Years at MAAC:
16

Brad Korman

Brad Korman

CRNA

Education: Missouri State University
Years of Experience: 23
Years at MAAC:
16

Dan Beary

Daniel Beary

CRNA

Education: Missouri State University
Years of Experience: 7
Years at MAAC:
7

Michelle Belgeri

Michelle Belgeri

CRNA

Education: Missouri State University
Years of Experience: 7
Years at MAAC:
7

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Ray Nordyke

CRNA

Education: SIU Edwardsville
Years of Experience: 7
Years at MAAC:
7

Taylor Frymire

Taylor Frymire

CRNA

Education: Missouri State University
Years of Experience: 5
Years at MAAC:
5

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Michael Bozung

CRNA

Education: Middle Tennessee School of Anesthesia
Years of Experience: 8
Years at MAAC:
4

Britt Lehr

Britt Lehr

CRNA

Education: Mount Marty University
Years of Experience: 4
Years at MAAC:
4

Connor Hager

Connor Hager

CRNA

Education: Fran University
Years of Experience: 3
Years at MAAC:
3

Cullen Ralphs

Cullen Ralphs

CRNA

Education: Webster University
Years of Experience: 2
Years at MAAC:
2

Anna Wong

Anna Wong

CRNA

Education: University of Tennessee
Years of Experience: 1
Years at MAAC:
1

Day Shift

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Curt Brown

CRNA

Education: Missouri State University
Years of Experience: 18
Years at MAAC:
18

Brent Dowell

Brent Dowell

CRNA

Education: Truman Medical Center
Years of Experience: 1
Years at MAAC:
1

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OB Team

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Mike Fann

CRNA

Education: Missouri State University
Years of Experience: 14
Years at MAAC:
5

David Lucas

David Lucas

CRNA

Education: Westminister University
Years of Experience: 15
Years at MAAC:
4

Ashton Ringen

Ashton Ringen

CRNA

Education: University of Kansas
Years of Experience: 9
Years at MAAC:
5

Lyssa Hill

Lyssa Hill

CRNA

Education: Missouri State University
Years of Experience: 4
Years at MAAC:
2

Casey Beckley

Casey Beckley

CRNA

Education: Wake Forest University
Years of Experience: 4
Years at MAAC:
1

Ashton Ringen

CRNA

Admin Team

Heidi Woods

Heidi Woods

Registered Nurse/Administrative Assistant

Contact Us

We know that preparing for a procedure can bring up questions, and we’re here to make sure you have all the information you need. Contact our team anytime—we’re happy to provide guidance, explain your anesthesia options, and help you feel at ease every step of the way.

Contact Us

We know that preparing for a procedure can bring up questions, and we’re here to make sure you have all the information you need. Contact our team anytime—we’re happy to provide guidance, explain your anesthesia options, and help you feel at ease every step of the way.