Summary

Dr. Gary Treece specializes in endocrinology, diabetes, and metabolism, bringing over five decades of medical expertise to his practice. He earned his medical degree from the University of California and completed his internal medicine residency at Tripler Army Medical Center in 1972, followed by additional residency training at Fitzsimons Army Medical Center that same year. Dr. Treece further honed his skills through specialized training in endocrinology, diabetes, and metabolism at Tripler Army Medical Center, along with internal medicine programs at both Tripler and Fitzsimons Army Medical Centers, as well as additional residency work at LECOMT/United Memorial Medical Center Program and Madigan Army Medical Center. He maintains board certification in internal medicine through the American Board of Internal Medicine and communicates with patients in English.

Dr. Treece practices at Astria Health Center in Union Gap, Washington, where he focuses on treating thyroid conditions and metabolic disorders. He provides care for patients with goiter, hypothyroidism, and thyroid nodules. His procedural expertise includes performing thyroid-stimulating hormone tests and thyroid and parathyroid ultrasounds to help diagnose and monitor endocrine conditions. Patients have given him an average rating of 3.5 out of 5 on Vitals.
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Quick Facts

  • accepting new patients
  • 3.5
  • 55 years of experience
  • 31 insurance plans accepted
  • speaks English
  • LECOMT/United Memorial Medical Center Program
  • 6 written reviews
  • 1 specialty
  • 13 areas of expertise
  • 2 board certifications
  • 1 office location
  • Male

Office Location

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

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Dr. Gary Treece, MDJessica Ryan, ARNP, BC-ADMDr. Biju P Kunhiraman, MDDr. Sikarin Upala
Endocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & MetabolismEndocrinology, Diabetes & Metabolism
Accepts New Patients Accepts New Patients Accepts New Patients
3.5 
4.8 
3.9 
55 Years of Experience 16 Years of Experience 29 Years of Experience 14 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English Speaks English Speaks English
Union Gap , WAOlympia , WAYakima , WAUnion Gap , WA
Med School: University of California Med School: P S G Institute Of Medical Sciences And Research Med School: Siriraj Hospital Faculty Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Gary 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 Treece has the following specialty

Specialty Expertise

Dr. Gary Treece has the following 13 areas of expertise

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

Certifications, License, & Education

55 Years Experience

BOARD CERTIFICATIONS

American Board of Internal Medicine

Internal medicine

MEDICAL LICENSE

Medical Doctor, Washington, 2026, Expired

EDUCATION & TRAINING

Residency

LECOMT/United Memorial Medical Center Program
Madigan Army Med Ctr, Endocrinology, Diabetes & Metabolism; Tripler Army Med Ctr, Internal Medicine; Fitzsimons Army Med Ctr, Internal Medicine
Tripler Army Med Center1972
Fitzsimons Army Med Center1972

Medical School

University of CaliforniaGraduated in 1971

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Frequently Asked Questions

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.
Where is Dr. Gary Treece's office located?
Dr. Gary Treece's office is located at 1420 Ahtanum Ridge Dr, Union Gap, WA, 98903.
What languages does Dr. Gary Treece speak?
Dr. Gary Treece speaks English.
Does Dr. Gary Treece accept my insurance?
You can see the insurance plans that Dr. Gary Treece accepts on their Vitals profile.

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