Summary

Dr. Nicholas Thiessen is a surgeon specializing in critical care medicine with 18 years of experience treating complex medical emergencies. He earned his medical degree from the University of Iowa, where he developed expertise in managing life-threatening conditions that require immediate surgical intervention. His dual specialization allows him to provide comprehensive care for patients who need both surgical procedures and intensive monitoring in critical care settings.

Dr. Thiessen practices at Saint Joseph's Hospital and Medical Center and sees patients in Chandler, Arizona. He treats serious conditions including closed head injuries, traumatic brain injuries, and acute cholecystitis, which is severe gallbladder inflammation. His procedural expertise includes performing CT scans for diagnostic imaging, providing sedation for patient comfort during procedures, and implementing therapeutic hypothermia to protect brain function after serious injuries. Patients rate him 4.5 out of 5 stars on Vitals, reflecting their confidence in his critical care expertise.
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Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.5
  • 18 years of experience
  • 44 insurance plans accepted
  • University Of Iowa
  • 3 written reviews
  • 2 specialties
  • 2 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 4 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Nicholas Ryan Thiessen has 4 locations

Dignity Health Medical Group Surgical Specialties Chandler Region

485 S Dobson Rd Ste 201Chandler, AZ 85224
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Dignity Health Medical Group Surgical Specialties Chandler Regional

485 S Dobson Rd Suite 201Chandler, AZ 85224

Dignity Health Medical Group Surgical Specialties - Chandler Regional

485 S Dobson Road Suite 201Chandler, AZ 85224

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Dr. Nicholas Ryan Thiessen, MDDr. Arthur Maydell, MDNabiel Azar, DO, MPH, FACS, FACOSDr. David Nye, DO
SurgerySurgerySurgerySurgery
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.5 
4.7 
18 Years of Experience 42 Years of Experience 21 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks Arabic, English Speaks English, Spanish
Chandler , AZPhoenix , AZPhoenix , AZPhoenix , AZ
Med School: University Of Iowa Med School: University of Pretoria Med School: Midwestern University, Chicago College of Osteopathic Medicine Med School: Midwestern University
Current Profile
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Insurance Plans Accepted by Dr. Nicholas Ryan Thiessen

  • Accepts Medicare
  • Accepts Medicaid
  • AARP
  • Aetna
  • Alignment Health Plan
  • Banner Health
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield - Medicare (Advantage HMO)
  • Blue Cross Blue Shield of Arizona
  • Blue Cross Blue Shield of Arizona - Medicare (Advantage HMO)
  • CareOregon
  • CHAMPVA
  • Cigna
  • Community Health Group
  • Devoted Health
  • Gilsbar 360 Alliance
  • Health Choice Arizona - HMO
  • Health Choice Arizona - Medicaid (Managed)
  • Humana
  • Humana - Medicare (Advantage HMO)
  • Kaiser Permanente
  • Magellan Health
  • Magellan Health - Medicaid (Managed)
  • Medica
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Mercy Care
  • Meritain Health
  • Molina Healthcare
  • Molina Healthcare - Medicaid (Managed)
  • Optum Health
  • Priority Health - Medicare (Advantage HMO)
  • Santa Clara Family Health Plan - Medicare (Advantage HMO)
  • SCAN Health Plan
  • SCAN Health Plan - HMO
  • Tricare
  • Triwest Healthcare Alliance
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - IPA
  • UnitedHealthcare - Medicaid (Managed)
  • UnitedHealthcare - Medicare (Advantage HMO)
  • University of Arizona Health Plans

Medical Specialties

Dr. Nicholas Ryan Thiessen has the following 2 specialties

Specialty Expertise

Dr. Nicholas Ryan Thiessen has the following 2 areas of expertise

  • Critical Care Medicine
  • Laparoscopic Surgery (Laparoscopy)

Certifications, License, & Education

18 Years Experience

Dr. Nicholas Ryan Thiessen holds an expired medical license in the state of Arizona.

Medical License

Medical Doctor with an expired medical license in the state of Arizona that expired in 2026.

Education & Training

Medical School

Graduated from University Of Iowa in 2008.

NPI Number

Dr. Thiessen's NPI number is 1053550301.

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Frequently Asked Questions

Does Dr. Nicholas Thiessen accept my insurance?
You can see the insurance plans that Dr. Nicholas Thiessen accepts on their Vitals profile.
Where is Dr. Nicholas Thiessen's office located?
Dr. Nicholas Thiessen's office is located at 485 S Dobson Rd Ste 201, Chandler, AZ, 85224.
How can I make an appointment with Dr. Nicholas Thiessen?
You can find contact information for Dr. Nicholas Thiessen here on Vitals.
Does Dr. Nicholas Thiessen accept virtual/telehealth appointments?
Dr. Nicholas Thiessen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. Nicholas Thiessen affiliated with?
Dr. Nicholas Thiessen is affiliated with Saint Josephs Hospital And Medical Center.

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