Dr. Marcia Ko, MD

RheumatologyFemaleAge 68

Dr. Marcia Ko, MD is a Rheumatology Specialist in Phoenix, AZ and has over 43 years of experience in the medical field. Dr. Ko has more experience with Osteoporosis & Screening than other specialists in her area. She graduated from University Of Washington School Of Medicine medical school in 1979. She is affiliated with Mayo Clinic Hospital, Phoenix, Arizona. Be sure to call ahead with Dr. Ko to book an appointment.

Dr. Ko

Mayo Clinic Hospital

5777 E Mayo Blvd Phoenix, AZ 85054

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At a Glance

  • Practices at Top Hospital
    America's 250 Best Hospitals Award™ See hospitals
  • Hospital Satisfaction
    Patients said they were highly satisfied at this doctor's hospital. See hospitals

Experience and Background Checks


Background Check

Healthgrades does not collect malpractice claims information for Arizona
No disciplinary actions found for the years we collect data
No board actions found for the years we collect data
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Frequently Treated by Dr. Ko

Based on treatment records, we have identified the following as areas of care that Dr. Ko treats more often than their peers. If you are unsure whether Dr. Ko treats other conditions, please contact the office at (480) 426-4980.

Osteoporosis & Screening

Osteoporosis specialists diagnose and treat conditions characterized by low bone density and bone weakness, such as osteoporosis and osteopenia.Compare with other Osteoporosis & Screening specialists.

Dr. Ko is experienced in the area of Osteoporosis & Screening. See the graph below to learn more about her experience.

Based on claims data for 2 conditions and procedures

Dr. Ko
Similar Providers
Osteoporosis Screening
Very High

Check Dr. Ko's experience treating your condition or procedure

Dr. Ko's conditions and procedures:

  • Achilles Tendinitis
  • Amyloidosis
  • Arthritis
  • Bone Density Scan
  • Bursitis
  • Carpal Tunnel Syndrome
  • Chondrocalcinosis
  • Chronic Neck Pain
  • Chronic Pain
  • Degenerative Disc Disease
  • Difficulty With Walking
  • Dry Eyes
  • Dual-Energy X-Ray Absorptiometry (DEXA) Scan
  • Enthesopathy of Hip (incl. Trochanteric Bursitis)
  • Fever
  • Fibromyalgia
  • Gout
  • Intervertebral Disc Disease
  • Joint Drainage
  • Joint Fluid Test
  • Joint Pain
  • Limb Cramp
  • Limb Pain
  • Limb Swelling
  • Low Back Pain
  • Lupus
  • Malaise and Fatigue
  • Muscle Weakness
  • Musculoskeletal Function Test
  • Myofascial Trigger Point Injection
  • Osteoarthritis
  • Osteoarthritis of Ankle and Foot
  • Osteoarthritis of Hand or Wrist
  • Osteoarthritis of Hands
  • Osteoarthritis of Hip
  • Osteoarthritis of Hip and Thigh
  • Osteoarthritis of Knee
  • Osteoarthritis of Shoulder
  • Osteoarthritis of Spine
  • Osteopenia
  • Osteoporosis
  • Osteoporosis Screening
  • Patellofemoral Pain Syndrome or Knee Pain
  • Plantar Fasciitis
  • Polymyalgia Rheumatica (PMR)
  • Quantitative Sensory Test (QST)
  • Raynaud's Disease
  • Rheumatoid Arthritis
  • Shoulder Impingement Syndrome
  • Sjögren's Syndrome
  • Spondylitis
  • Steroid Injection
  • Systemic Chondromalacia
  • Systemic Sclerosis
  • Trigger Finger
  • Trigger Point Injection
  • Ultrasound, Musculoskeletal

Insurance Check

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Dr. Ko accepts

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(480) 426-4980

Dr. Ko accepts the following insurance:

Cigna HMO
Open Access Plus

Dr. Ko's Reviews

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About Me


Dr. Marcia Ko, MD is a Rheumatology Specialist in Phoenix, AZ and has over 43 years of experience in the medical field. Dr. Ko has more experience with...Read more


  • Rheumatology

Board Certifications

  • Internal Medicine
  • Rheumatology


University Med Center
Residency Hospital
University Of Washington School Of Medicine
Medical School


Frequently Asked Questions

Does Dr. Marcia Ko, MD accept my insurance?

Use the Healthgrades insurance check to verify if Dr. Ko accepts your insurance.

What are Dr. Marcia Ko, MD's top areas of care?

Dr. Ko frequently treats Osteoporosis & Screening. See all practice areas where Dr. Ko specializes.

Where is Dr. Marcia Ko, MD's office located?

Dr. Ko's office is located at 5777 E Mayo Blvd, Phoenix, AZ 85054. Find other locations and directions on Healthgrades.

Does Dr. Marcia Ko, MD offer telehealth services?

Dr. Ko has not yet indicated whether they offer telehealth services. Please contact the office to check for availability/eligibility.

How can I make an appointment with Dr. Marcia Ko, MD?

Find contact information here to make an appointment.



Mayo Clinic Hospital5777 E Mayo Blvd Phoenix, AZ 85054

Affiliated Hospitals

Dr. Ko is affiliated with the following hospital. Select the hospital below to learn more.

Learn more about how Healthgrades measuresHospital Quality.

Mayo Clinic Hospital, Phoenix, Arizona

Phoenix, AZ

92% Patient Experience Rating, 23% higher than the national average

33 Awards Received

Award Highlight: Outstanding Patient Experience Award™ (2021)