Physicians

ACR breast ultrasound seal

Medical Director & Physicians

If diagnostic imaging shows a need for a biopsy, we will assist you in making an appointment with a surgeon affiliated with the Florida Breast Institute. These surgeons have committed to seeing our patients within 48 hours of receiving an appointment request.


Matthew Karlen, M.D.

Dr. Matthew Karlen

Medical Director, Florida Breast Institute
Lead Radiologist, Allegiant MD Inc

100 South Ashley Dr
Suite 1500
Tampa, Florida 33602
Phone: (727) 584-7666

Medical School: University of Cincinnati Medical Center
Internship: Akron General Medical Center
Residency and Fellowship: Ohio State University Medical Center


Richard F. Fansler, M.D.

Dr. Richard F. Fansler

12955 Seminole Blvd
Largo, FL 33778
Phone: (727) 584-9500

1609 Pasadena Ave S
Suite 2C
St. Petersburg, FL 33707
Phone: (727) 302-9000

Medical School: University of Florida Medical School, Gainesville FL
Internship and Residency: Tulane University School of Medicine, New Orleans, LA


Michael E. Nerney, M.D.

Dr. Michael E. Nerney

1301 2nd Ave SW
Largo, FL 33770
Phone: (727) 581-8767

Medical School: Eastern Virginia Medical School, Norfolk, VA
Internship and Residency: University of Florida, Gainesville, FL


G. David Lowery, D.O.

Dr. G. David Lowery

General Surgery Residency Program Director

2039 Indian Rocks Rd
Largo, FL 33774
Phone: (727) 584-7666

Medical School: Oklahoma College of Osteopathic Medicine and Surgery, Tulsa OK
Internship and Residency: Sun Coast Hospital, Largo, FL


Marni Mentis, D.O.

Dr. Marni Mentis

401 Corbett St
Suite 310
Clearwater, FL 33756
Phone: (727) 474-0205

Medical School: DesMoines University Osteopathic Medical Center
Residency: Sun Coast Hospital and Bay Pines VA Medical Center
Fellowship: Philadelphia College of Osteopathic Medicine
Internship: Metropolitan Medical Center