Matthew Nienaber MD

Matthew Nienaber, D.O.

Internal Medicine

Not Accepting New Patients

About Matthew Nienaber, D.O. 

Born on the West Coast, native of the Bay Area, Matthew K. Nienaber, D.O., was raised in the Pacific Northwest with one foot in the sand and one in the water.  

Caring and compassionate, Dr. Nienaber works with his patients to provide individualized healthcare. With a strong passion for helping the underserved, he participates in medical missions to Africa, South America, and Mexico.  

Dr. Nienaber earned his medical degree at the Western University College of Osteopathic Medicine of the Pacific in Pomona, California. He completed his internship and residency at the Arrowhead Regional Medical Center in Colton, California.  

Dr. Nienaber’s patients say he is an excellent practitioner, is courteous and professional, and puts you at ease. They feel truly fortunate to have Dr. Nienaber as their primary physician.  

Dr. Nienaber is a former competitive dragon boat racer. He enjoys playing piano and bass, as well as restoring classic British race cars.  

I feel like my Doctor really cares about my health

Real Patient
Matthew Nienaber

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Matthew K. Nienaber, D.O.
Family & Internal Medicine

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Family & Internal Medicine
01 / 02

Locations

1821 Wilshire Blvd., Suite 100,
Santa Monica, CA 90403
(310) 575-3100

Education

Medical School
Western University College of Osteopathic Medicine of the Pacific

Internship
Arrowhead Regional Medical Center, Colton, CA

Residency
Arrowhead Regional Medical Center, Colton, CA

Languages

Spanish

child checkup

Reviews

At Providence, we’re dedicated to providing you quality, personalized health care. We are constantly striving to optimize your experience.

As part of ensuring you have a positive experience with Providence, our online provider directory includes ratings and patient comments for select providers. More about our survey.

  • 4.9
  • 229 Reviews
  • 234 Comments
  • 5
06/04/2024

Dr. Nienaber is always so thorough and always willing to answer any question, however small or distantly related to my current health concerns, that I may have. I appreciate the time he takes with me as a patient. He also isn't patronizing or judgmental - he sticks to medical facts and gives whatever pertinent information that is helpful.

Providence Patient
  • 5
05/25/2024

Dr Nienaber has an excellent patient care

Providence Patient
  • 5
05/22/2024

They are the BEST. !

Providence Patient
  • 5
05/21/2024

Excellent care

Providence Patient
  • 5
05/21/2024

Excellent doctor, excellent care.

Providence Patient
  • 4.94
05/20/2024

My care provider is always looking out for my best interests.

Providence Patient
  • 5
05/18/2024

Dr Nienaber is exceptional in his listening skills, compassion, explaining, professionalism and over all bedside manner.

Providence Patient
  • 5
05/17/2024

Good

Providence Patient
  • 5
05/14/2024

Very professional

Providence Patient
  • 5
05/11/2024

Dr. Matthew and the care team at the office are fantastic. The staff go above and beyond, to ensure proper care and support is given.

Providence Patient