Biography & Education

NorthWest Congenital Heart Care maintains a practice environment that upholds the highest level of clinical, professional and ethical standards where employees want to work, physicians want to refer their patients and where patients feel safe in a warm, caring, family-oriented setting.
Position Summary MD Pediatric Cardiologist
Additional Information

After completing fellowships in pediatric cardiology and electrophysiology (the study and treatment of heart  rhythm disturbances) at Texas Children’s Hospital, I practiced for six years at Toronto’s Hospital for Sick Children, where I was the first pediatric electophysiologist in Canada.  For the next 17 years I was at the University of Minnesota in Minneapolis, and moved to Washington in 2004.


Dr. Hesslein was voted "Top Doctors" in Seattle Magazine (2012).

A survey was mailed to more than 18,000 physicians in King, Pierce, Snohomish and Kitsap counties. The survey asked physicians to name the provider they would seek out or recommend to loved ones.

News Release

  • Pediatric cardiology
Education Background
Medical School Baylor College of Medicine
Residency Northwestern University- Children's Memorial Hospital
Fellowship Pediatric Cardiology and Electrophysiology, Texas Children's Hospital
  • English
  • Spanish
  • French
Professional Associations
Heart Rhythm Society, Pediatric and Congenital Electrophysiology Society, Royal College of Physicians & Surgeons of Canada
Personal Interests
My wife is a teacher and together we have two grown children and 3 grandchildren. In my free time I enjoy hiking, biking, reading, theater and music.

Care Locations

751 N.E. Blakely Dr.
Issaquah, WA 98209
NorthWest Congenital Heart Care
Swedish Nordstrom Tower
1229 Madison St. Suite 860
Seattle 98104
Fax 206-223-2127
NorthWest Congenital Heart Care
Jackson Hall Medical Building
314 Martin Luther King Jr. Way Suite 303
Tacoma 98405
Fax (253) 396-4870
NorthWest Congenital Heart Care
Swedish Issaquah Hospital
751 NE Blakely Drive Suite 5010
Issaquah 98029
Accepted Insurances
  • All insurances accepted
Accepted Payment Methods
Medicare, Medicaid/DSHS, Bill Insurance, VISA, Master Card, Cash, Check, Payment Plan
Accepting Medicaid



NorthWest Congenital Heart Care

   John P. McCloskey, MD, FAAP, FACC

   Kimberly Krabill, MD, FAAP, FACC

   Peter Hesslein, MD, FRCP (C)  

   Paul Kim, MD, FAAP, FACC

   Matt Park, MD, FAAP, FACC

   Christopher Bellotti, MD, FAAP


  • Pediatric cardiology
Clinical Interests
  • Interventional Cardiologists
  • Our Physicians
  • Pediatric Cardiology
  • Pediatric Echocardiography
  • Pediatric Electrophysiology
  • Pediatric Interventional Cardiology