Summary

Dr. Gary Treece specializes in endocrinology, diabetes and metabolism, along with internal medicine. He earned his medical degree from the University of California Irvine College of Medicine and completed his residency at Tripler Army Medical Center. With 55 years of experience in medicine, Dr. Treece brings extensive knowledge to his practice. He is fluent in English, Spanish, and Vietnamese.

Dr. Treece practices at multiple Astria Health locations throughout Union Gap, Sunnyside, and Toppenish, Washington. He focuses on treating thyroid conditions including hypothyroidism and hyperthyroidism. His expertise includes performing thyroid function panels and cranial ultrasounds to help diagnose and monitor these conditions. Patients have given him an average rating of 3.5 out of 5 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.5
  • 55 years of experience
  • 31 insurance plans accepted
  • speaks English, Spanish, Vietnamese
  • Tripler Army Medical Center
  • 6 written reviews
  • 2 specialties
  • 14 areas of expertise
  • 2 board certifications
  • 5 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. Gary Lee Treece has 5 locations

Astria Health Center - Union Gap

1420 Ahtanum Ridge DrUnion Gap, WA 98903
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

Astria Health Center

803 E Lincoln AveSunnyside, WA 98944
Mon7:00 am - 5:00 pm
Tue7:00 am - 5:00 pm
Wed7:00 am - 5:00 pm
Thu7:00 am - 5:00 pm
Fri7:00 am - 5:00 pm
SatClosed
SunClosed

Astria Toppenish Hospital

502 W 4th AveToppenish, WA 98948

Astria Sunnyside Hospital

1016 Tacoma AveSunnyside, WA 98944

Compare with Similar Doctors

Dr. Gary Lee Treece, MD
Jessica Ryan, ARNP, BC-ADM
Dr. Sarah Lynne Dill, MD
Dr. Neil Larry Barg, MD
Dr. Gary Lee Treece, MDJessica Ryan, ARNP, BC-ADMDr. Sarah Lynne Dill, MDDr. Neil Larry Barg, MD
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismRheumatologyInfectious Disease
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.5 
4.8 
55 Years of Experience 16 Years of Experience 13 Years of Experience 47 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish, Vietnamese Speaks English Speaks English Speaks English, Spanish
Union Gap , WAOlympia , WAYakima , WAYakima , WA
Med School: University Of California Irvine College Of Medicine Med School: University Of Washington School Of Medicine Med School: Lewis Katz School Of Medicine At Temple University
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Dr. Gary Lee Treece

  • AARP
  • AARP - Medicare
  • Aetna
  • Aetna - Medicare
  • AmeriGroup
  • CHAMPVA
  • Cigna
  • First Choice Health
  • Group Health Cooperative
  • Humana
  • Humana - Medicare
  • Kaiser Permanente
  • Medicaid
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicare
  • Molina Healthcare
  • Molina Healthcare - HMO
  • Molina Healthcare - Medicare
  • Mutual of Omaha - Medicare
  • New Hampshire Healthy Families
  • New Hampshire Healthy Families - HMO
  • Premera Blue Cross
  • STLDentalPlan| LLC
  • Tricare
  • Triwest Healthcare Alliance
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare
  • Wellcare - Medicare

Medical Specialties

Dr. Gary Lee Treece has the following 2 specialties

Specialty Expertise

Dr. Gary Lee Treece has the following 14 areas of expertise

  • Acromegaly
  • Addison Disease
  • Cushing Disease
  • Diabetes
  • Diabetes (Types I & II)
  • Fatigue
  • Gland Issues
  • Hormones
  • Hyperthyroidism
  • Hypopituitarism
  • Hypothyroidism
  • Internal Medicine
  • Osteoporosis
  • Thyroid Diseases

Certifications, License, & Education

55 Years Experience

Dr. Gary Lee Treece holds an expired medical license in the state of Washington.

Medical License

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

Education & Training

Residency

Completed their residency at Tripler Army Medical Center.

Medical School

Graduated from University Of California Irvine College Of Medicine in 1971.

NPI Number

Dr. Treece's NPI number is 1447269857.

Similar doctors

Frequently Asked Questions

Where is Dr. Gary Treece's office located?
Dr. Gary Treece's office is located at 1420 Ahtanum Ridge Dr, Union Gap, WA, 98903.
Does Dr. Gary Treece accept my insurance?
You can see the insurance plans that Dr. Gary Treece accepts on their Vitals profile.
Is Dr. Gary Treece accepting new patients?
Dr. Gary Treece is accepting new patients on Vitals. View Dr. Gary Treece's profile on Vitals to make an appointment.
How can I make an appointment with Dr. Gary Treece?
You can find contact information for Dr. Gary Treece here on Vitals.
Does Dr. Gary Treece accept virtual/telehealth appointments?
Dr. Gary Treece has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.