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Dr. Sumiko Armstead, MD

Dr. Sumiko Armstead, MD

Age 40 Nephrology F
(6) 6 reviews
Accepting New Patients


Dr. Sumiko Armstead, MD is a nephrology specialist in Cypress, TX. She currently practices at Northwest Kidney Specialists and is affiliated with HCA Houston Healthcare Northwest. She accepts multiple insurance plans. Dr. Armstead is board certified in Internal Medicine.


  • University of Texas Southwestern Medical Center At Dallas, Fellowship Hospital — 2012

Insurance Accepted

  • Aetna
  • Anthem
  • Blue Cross Blue Shield
  • Blue Cross Blue Shield of Texas
  • CareFirst Blue Cross Blue Shield
  • Cigna
  • Humana
  • MultiPlan

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  1. Northwest Kidney Specialists

    1. 1
      Cypress Office
      27700 Highway 290 Ste 330, Cypress, TX 77433 Existing Patients: (281) 317-4204

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Sumiko is the best doctor I have ever met. She is truly amazing and so interested to provide the best care and attention possible. She is working with both myself and my wife to improve are kidney functions and we have total trust in her ability to find the best treatment for us.
Steve and Joan Stares — Feb 15, 2021
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Dr. Sumiko Armstead, MD
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Frequently Asked Questions

Dr. Armstead frequently treats Mineral Metabolism Disorders, Hypokalemia , and Phosphorus Metabolism Disorders.  

Hospital Affiliations

  • HCA Houston Healthcare Northwest
  • HCA Houston Healthcare Conroe
  • Houston Methodist West Hospital
  • Memorial Hermann - Texas Medical Center
  • Memorial Hermann Northwest Hospital
  • Memorial Hermann Southwest Hospital