Provider facility background
Louis B Kasunic, DO

Louis B Kasunic, DO

Family Medicine
Louis B Kasunic, DO, FACOFP is a graduate of Denison University (BS Chemistry), Case Western Reserve University (MS Chemistry), and The Ohio University College of Osteopathic Medicine. He is Board Certified in Family Medicine and is a Fellow of the American College of Osteopathic Family Physicians. He has practiced medicine in our community since 1987. Dr. Kasunic is the founder and Director of the Strong Heart Institute (located within Castle Rock Family Physicians); using cutting edge technology to help patients avoid heart attacks and stroke. He speaks nationally on a variety of medical topics and continues in his role as a clinical professor training medical students, interns, and resident physicians. He lives in Castle Rock with his wife, Wanda, and their three children where he enjoys coaching, reading, shooting and landscaping. He was voted "Best of the Best" Physician in Castle Rock by readers of Colorado Community Newspapers. Dr. Kasunic founded Castle Rock Family Physicians in 1994.


• Family Medicine Board Certified Since 1986

• Founder Castle Rock Family Physicians 1994

• Colorado Board of Medical Examiners Vice President 1992-2000

• Presbyterian St. Luke's Medical Center Family Medicine Residency Program Director 8 years

• Fellow American College of Osteopathic Family Physicians

Accepts most insurance. Contact your insurance provider for coverage information

Adolescent Care

Adult Medicine

Annual Complete Physical Examination (when indicated)

Asthma and Allergic Disorders

BioTe Hormone Therapy

Cardiovascular Risk Factor Reduction

CIMT: Carotid Artery Intimal Medial Thickness Exam

Colposcopy and Cryotherapy Cervix

Cosmetic Aesthetics (Botox, Laser Hair Reduction, Skin Rejuvenation)


DEXA: Bone Density Study

Diabetes Management and Prevention


Endometrial Biopsy

Fracture Care

Geriatric Care

Hormone Management and Replacement (men and women)

Hypertension Care

Injections (Trigger Point, Bursa, Joint)

Menopause Management

Osteopathic Manipulation (OMT)

Pediatric Care

Preoperative Evaluations

Pulmonary Function Testing

Reflux Disorder

Skin Biopsies

Sports Medicine

Sports Physicals


Testosterone Injections

Testoterone Pellets

Thyroid Disorder Management

Well Woman Examination

Workers’ Comp Management

X-Ray Facilities in Our Office