Meet Our Staff

Area code for all phone numbers is 615. Our mailing address is listed on the Contact Us page.


Program Management

Kevin Warren

Kevin Warren

Assoc. Vice President
OCRS 
phone: 322-0925 | fax: 343-4951
[email protected]

Rhonda Foster

Rhonda Foster

Assistant Director
Hospital/Clinic Safety
Medical Center Safety Officer
phone: 322-1989 | fax 343-4951
[email protected]

Mark Bogard

Mark Bogard

Assistant Director
Chemical/Lab Safety
& Chemical Waste Program
phone: 936-8461 | fax: 343-0251
[email protected]

Marcus Balanky

Marcus Balanky

Director 
Radiation Safety
Radiation Safety Officer
phone: 343-8502 | fax 343-4951 
[email protected]

Alexandra Elliott

Alexandra Elliott

Assistant Director
Biological Safety
Biological Safety Officer
phone: 322-0927 
phone: 322-0927 | fax: 343-4951[email protected]


Administrative Staff

Stacey Moore

Stacey Moore

Business Process Manager, OCRS
phone: 343-0759 | fax: 343-4951
[email protected]

Kristina Lyle

Kristina Lyle

Sr. Administrative Asst., OCRS
fax: 343-4951
[email protected]


Biological Safety Program

Alexandra Elliott

Alexandra Elliott

Assistant Director,
Biological Safety Officer
phone: 322-0927 
phone: 322-0927 | fax: 343-4951[email protected]

Bettye Ridley

Bettye Ridley

Senior Safety Officer
Biological Safety
phone: 322-0243 | fax: 343-4951
[email protected]

Rich DiTullio

Richard DiTullio

Safety Officer - Certified
Biological Safety
phone: 322-1988 | fax: 343-4951
[email protected]

Christina Svitek

Chris Svitek

Safety Officer
Biological Safety
phone: 875-4367 | fax: 343-4951
[email protected]

Carley Bacon

Carley Bacon

Safety Officer
Animal Care Safety
phone: 875-9272 | fax: 343-4951
[email protected]


Chemical/Lab Safety & Chemical Waste Program

Mark Bogard

Mark Bogard

Assistant Director
Chemical/Lab Safety
& Chemical Waste Program
phone: 936-8461 | fax: 343-0251
[email protected]


Chemical Waste Program

Chris Viglianco

Chris Viglianco

Senior Safety Officer
phone: 322-6484 | fax 343-0251
[email protected]

Stephen Trundy

Stephen Trundy

Safety Officer
phone: 322-2056 | fax 343- 0251
[email protected]

Mel Flora

(Lawrence) Mel Flora

Safety Officer
phone: 322-3067 | fax 343- 0251
[email protected]

Gary Hibbitt

Gary Hibbitt

Associate Safety Officer
phone: 936-6869 | fax 322-4737
[email protected]


Laboratory Compliance Program

Cary Negus

Cary Negus

Senior Safety Officer - Certified
Laboratory Compliance Program
phone: 343-2940 | fax: 343-0251
[email protected]

Mark Pavlack

Mark Pavlack

Safety Officer
Laboratory Compliance Program
phone: 343-3528 | fax: 343-0251
[email protected]

Jennifer Harvey

Jennifer Harvey

Safety Officer
Laboratory Compliance Program
phone: 421-8531 | fax: 343-0251
[email protected]

Samantha Thacker

Samantha Bonczek

Safety Officer
Laboratory Compliance Program
phone: 322-2057 | fax: 343-0251
[email protected]


Radiation Safety Program

Marcus Balanky

Marcus Balanky

Director 
Radiation Safety
Radiation Safety Officer
Health Physicist
phone: 343-8502 | fax 343-4951 
[email protected]

Juan Sepulveda

Juan "John" Sepulveda

Program Manager,
Assistant Radiation Safety Officer
Health Physicist
phone: 421-8758 | fax 343-4951
[email protected]

Karl Witte

Karl Witte

Lead Safety Officer
Health Physicist
phone: 343-7034 | fax 322-4737
[email protected]

Ling Chung

Ling Chung

Lead Safety Officer
Health Physicist
phone: 343-4892 | fax 343-4951
[email protected]

Amber Vredenburgh

Amber Vredenburgh

Safety Officer - Certified
Health Physicist
phone: 322-7037 | fax 343-4951
[email protected]

Kevin Fu

Kevin Fu

Safety Officer
Health Physicist
phone: 875-4365 | fax: 322-4737
[email protected]

Tara Wilkins

Tara Wilkins

Safety Officer - Certified
Health Physicist
phone:322-0490 | fax 875-4365
[email protected]

John Abraham

John Abraham

Safety Officer
Health Physicist
phone: 421-2193 | fax: 322-4737
[email protected]

Katelyn Darbonne

Katelyn Caldwell

Associate Safety Officer - Certified
Health Physicist
phone: 322-2057 | fax: 322-4737
[email protected]

Nick Waters

Nick Waters

Associate Safety Officer - Certified
Health Physicist
phone: 421-4166 | fax: 322-4737
[email protected]


Radioactive Waste Program

Blake Squibb

Blake Squibb

Safety Officer
Health Physicist
phone: 421-8129 | fax 343-7036
[email protected]


Hospital/Clinic Safety Program

Rhonda Foster

Rhonda Foster

Assistant Director
Hospital/Clinic Safety
Medical Center Safety Officer
phone: 322-1989 | fax 343-4951
[email protected]

Brian Corley

Brian Corley

Senior Safety Officer
phone: 322-4388 | fax 343-4951
[email protected] 

Stephen Hopkins

Stephen Hopkins

Senior Safety Officer
phone: 343-3527 | fax: 343-4951
[email protected]

Vito Vascassenno

Vito Vascassenno

Senior Safety Officer
phone: 875-6027 | fax 343-4951phone: 875-6989 | fax 343-4951
[email protected]

Gordon Chadwell

Gordon Chadwell

Safety Officer
phone: 875-1229 | fax 343-4951
[email protected]

John Wallace

John Wallace

Safety Officer
phone: 421-2470 | fax 343-4951
[email protected]

Zach Bennett

Zachary Bennett

Safety Officer - Certified
phone: 322-1441 | fax 343-4951
[email protected]


Respirator Fit-Test Program

Ashley Strader

Ashley Walker

Safety Officer
N-95 Respirator Fit-testing Program
phone: 343-1387 | fax 343-4951
[email protected]

Monique Johansen

Monique Johansen

Associate Safety Officer
N-95 Respirator Fit-testing Program
phone: 343-1387 | fax 343-4951
[email protected]