Summary

Dr. Lester Mertz is a rheumatologist who earned his medical degree from the Medical College of Wisconsin, where he also completed his residency training. With 45 years of experience in rheumatology, Dr. Mertz has developed extensive expertise in treating complex inflammatory and autoimmune conditions. He speaks English and has built a distinguished career helping patients manage challenging rheumatologic disorders.

Dr. Mertz practices at Mayo Clinic locations in Scottsdale and Phoenix, Arizona, with hospital privileges at Mayo Clinic Hospital. He specializes in treating serious conditions such as rheumatoid arthritis, polymyositis, dermatomyositis, and granulomatosis with polyangiitis. His practice includes comprehensive metabolic testing and infusion therapy services for patients requiring intravenous medications. Patients rate Dr. Mertz 4.3 out of 5 stars on average for his care.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.3
  • 45 years of experience
  • 22 insurance plans accepted
  • speaks English
  • Medical College Of Wisconsin
  • 3 written reviews
  • 1 specialty
  • 14 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 2 office locations
  • Male

Office Locations

Dr. Lester Ervin Mertz has 2 locations

Mayo Clinic

13400 E Shea BlvdScottsdale, AZ 85259
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

Mayo Clinic Hospital

5777 E Mayo BlvdPhoenix, AZ 85054

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Dr. Lester Ervin Mertz, MD
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Dr. Lester Ervin Mertz, MDDr. Joonhee Lim, MDDr. Matthew Kennan HermannDr. Swati Suresh Bharadwaj
RheumatologyRheumatologyRheumatologyRheumatology
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.3 
45 Years of Experience 22 Years of Experience 37 Years of Experience 25 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Korean Speaks English Speaks English, Hindi
Scottsdale , AZGilbert , AZPhoenix , AZMesa , AZ
Med School: Medical College Of Wisconsin Med School: Dongguk University, School of Medicine Gyeongju, South Korea Med School: University of Utah Med School: University of Bombay, India
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Insurance Plans Accepted by Dr. Lester Ervin Mertz

  • Accepts Medicare
  • Accepts Medicaid
  • AARP
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Arizona
  • Blue Cross Blue Shield of North Carolina
  • Cigna
  • Empire Plan
  • Gilsbar 360 Alliance
  • Golden Rule
  • Health Choice Arizona
  • HealthPartners
  • Medicare
  • Medicare - HMO
  • Medicare - Medicare
  • Mercy Care
  • Meritain Health
  • Optum Health
  • PacificSource Health Plans
  • Sanford Health Plan
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicaid (Managed)
  • University of Arizona Health Plans

Medical Specialties

Dr. Lester Ervin Mertz has the following specialty

Specialty Expertise

Dr. Lester Ervin Mertz has the following 14 areas of expertise

  • Arthritis
  • Dermatomyositis
  • Gout
  • Hip Osteoarthritis
  • Knee Osteoarthritis
  • Lupus
  • Lyme Disease
  • Osteoarthritis
  • Polymyositis
  • Rheumatic Diseases
  • Rheumatoid Arthritis
  • Scleroderma
  • Tendinitis
  • Vasculitis

Certifications, License, & Education

45 Years Experience

MEDICAL LICENSE

Medical Doctor, Arizona, 2027, Active

EDUCATION & TRAINING

Residency

Medical College Of Wisconsin

Medical School

Medical College Of WisconsinGraduated in 1981

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Frequently Asked Questions

Which hospitals is Dr. Lester Mertz affiliated with?
Dr. Lester Mertz is affiliated with Mayo Clinic Hospital.
What languages does Dr. Lester Mertz speak?
Dr. Lester Mertz speaks English.
Does Dr. Lester Mertz accept virtual/telehealth appointments?
Dr. Lester Mertz has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Lester Mertz?
You can find contact information for Dr. Lester Mertz here on Vitals.
Does Dr. Lester Mertz accept my insurance?
You can see the insurance plans that Dr. Lester Mertz accepts on their Vitals profile.

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