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Portsmouth Regional Hospital

Jan Slezak, MD

Pain Management

Interventional Spine Medicine

944 Calef Highway
Barrington, NH 3825

About Jan Slezak

Dr. Slezak is Board Certified in Pain Management and Anesthesiology. He received his MD degree from Comenius University in Bratislava, Slovakia and completed a residency in General Surgery. He later trained in Cardiac and Vascular Surgery at the University Hospital in Bratislava. He completed an internship and residency in Anesthesiology at the Henry Ford Hospital in Detroit, Michigan and a fellowship in Pain Management at Massachusetts General Hospital, and Harvard Medical School. He has been a consultant at the MGH Pain Center and at Lahey Clinic. Dr. Slezak also graduated from UCLA’s Medical acupuncture program.

Member, World Institute of Pain Practice

Member, American Society of Interventional Pain Physicians

Member, NH Medical Association

Member, NH Society of Anesthesiologists

Member, New England Pain Association

Member, American Society of Regional Anesthesia

Member, International Spinal Injection Society

Member, International Association for Study of Pain

Other Training, Affiliations and Appointments

Medical Director of Northeast Pain Research Center

Board of Surgery, Czechoslovakia



Medical School
Komensky University, Bratislava, Slovakia

Internal Medicine, Henry Ford Hospital, Detroit, MI

Henry Ford Hospital , Detroit Michigan

Institute of Cardiovascular Diseases, University Hospital, Bratislava, Slovakia

Certifications & Memberships

Anesthesiology, American Board of Anesthesiology

Pain Management



Languages Spoken



Pain Management

Office Locations

Interventional Spine Medicine
944 Calef Highway
Barrington, NH 3825
Phone: (603) 664-0100
Fax: (603) 664-0101

Additional Locations

270 Lafayette Rd

Rye, NH
03872 Phone: 603-319-1581
Phone: Fax: 603-319-1585