5
370 Ratings with 370 written Reviews
Summary
Dr. Matthew Nienaber is a board-certified osteopathic physician specializing in internal medicine. He completed his medical training with internships at Arrowhead Regional Medical Center in both 2015 and 2017, gaining extensive experience in comprehensive adult care. Dr. Nienaber is fluent in both Spanish and English, allowing him to serve a diverse patient population.
Dr. Nienaber practices at The Doctors of Saint John's Primary Care location in Santa Monica, California, and maintains his hospital affiliation with Arrowhead Regional Medical Center. He focuses on treating common conditions such as acne, allergies, and anxiety with depression. His clinical expertise includes cancer prevention and screening, chronic disease management, and diabetes care. Patients consistently rate Dr. Nienaber highly for his care, giving him an average rating of 4.9 out of 5 stars.
Dr. Nienaber practices at The Doctors of Saint John's Primary Care location in Santa Monica, California, and maintains his hospital affiliation with Arrowhead Regional Medical Center. He focuses on treating common conditions such as acne, allergies, and anxiety with depression. His clinical expertise includes cancer prevention and screening, chronic disease management, and diabetes care. Patients consistently rate Dr. Nienaber highly for his care, giving him an average rating of 4.9 out of 5 stars.
AI-generated from data on this provider profile.
Quick Facts
- 23 insurance plans accepted
- speaks Spanish, English
- Arrowhead Regional Medical Center
- 370 written reviews
- 1 specialty
- 1 hospital affiliation
- 1 office location
- Male
Patients’ Perspective
- Gave an accurate diagnosis
- Had a good bedside manner
- Spent time with me
Based on patient feedback. Read the reviews
Office Location
The Doctors of Saint John's - Santa Monica Primary Care
1821 Wilshire Blvd Ste 100Santa Monica, CA 90403 Tel: (310) 575-3100
Compare with Similar Doctors
 |  |  |  |
| Dr. Matthew Kevin Nienaber, DO | Dr. George Mousa, MD | Karthikeyan Viswanathan, DO | Dr. Nima Ghadimi, MD |
| Internal Medicine | Internal Medicine | Internal Medicine | Internal Medicine |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | |
| 17 Years of Experience | 12 Years of Experience | 29 Years of Experience | |
| Virtual Visit Available | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks Spanish, English | Speaks English, Tamil | Speaks English, Spanish | |
| Santa Monica , CA | Upland , CA | Los Altos , CA | Scottsdale , AZ |
| Med School: University Of Aleppo Faculty Of Medicine | Med School: Bassett Medical Center - Cooperstown, New York | Med School: Univ Iberoamericana Unibe Santo Domingo | |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Dr. Matthew Kevin Nienaber
Medical Specialties
Dr. Matthew Kevin Nienaber has the following specialty
Certifications, License, & Education
MEDICAL LICENSE
Doctor Of Osteopathy, California, 2025, Expired
EDUCATION & TRAINING
Internship
Arrowhead Regional Medical Center2017
Arrowhead Regional Medical Center2015
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Frequently Asked Questions
- How can I make an appointment with Dr. Matthew Nienaber?
- You can find contact information for Dr. Matthew Nienaber here on Vitals.
- Is Dr. Matthew Nienaber accepting new patients?
- Dr. Matthew Nienaber has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
- Which hospitals is Dr. Matthew Nienaber affiliated with?
- Dr. Matthew Nienaber is affiliated with Arrowhead Regional Medical Center.
- Does Dr. Matthew Nienaber accept my insurance?
- You can see the insurance plans that Dr. Matthew Nienaber accepts on their Vitals profile.
- What languages does Dr. Matthew Nienaber speak?
- Dr. Matthew Nienaber speaks Spanish and English.
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