Affiliated with a Castle Connolly Top Hospital
Who is Dr. Nienaber, Internist in Santa Monica, CA?
What languages does Dr. Nienaber speak?
Dr. Nienaber and their clinical team can communicate with patients in the following languages:
- English
- Spanish
What conditions does an Internist like Dr. Nienaber typically treat?
As an Internist, Dr. Nienaber diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Nienaber. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Routine Adult Health Checkup
- Health Checkup
- Adult physical exam
- Annual wellness visit for adults
- General adult medical exam
ICD-10 Codes:
- Z0000: Encounter for general adult medical examination without abnormal findings
Also known as:
- High Blood Pressure
- Hypertension
- Primary Hypertension
- Essential Hypertension
ICD-10 Codes:
- I10: Essential (primary) hypertension
Also known as:
- Immunization Visit
- Vaccines
- Vaccination appointment
- Shot visit
- Immunization encounter
ICD-10 Codes:
- Z23: Encounter for immunization
Also known as:
- Other Pre-Procedure Examination
- Various pre-op checks
- Miscellaneous pre-surgery exams
- Other pre-treatment assessments
ICD-10 Codes:
- Z01818: Encounter for other preprocedural examination
Also known as:
- Type 2 Diabetes
- Type 2 Diabetes with High Blood Sugar
- Diabetes Type 2
- Type 2 diabetes
- Hyperglycemia
- Diabetes Mellitus Type 2
- Adult-Onset Diabetes
- Non-Insulin Dependent Diabetes
- Diabetic Hyperglycemia
- High Blood Glucose
- High Sugar Levels
ICD-10 Codes:
- E119: Type 2 diabetes mellitus without complications
- E1165: Type 2 diabetes mellitus with hyperglycemia
Also known as:
- Other Long-Term Drug Therapy
- Chronic medication use
- Ongoing drug treatment
- Extended drug therapy
ICD-10 Codes:
- Z79899: Other long term (current) drug therapy
Also known as:
- Anxiety Disorder
- Anxiety
- General Anxiety
- Anxiety Problems
- Nervous Disorder
ICD-10 Codes:
- F419: Anxiety disorder, unspecified
What procedures does an Internist like Dr. Nienaber typically perform?
As an Internist, procedures performed by Dr. Matthew Nienaber may include:
- Ambulatory Care Consultation
- Annual Check Up
- Annual Physical
- Aromatherapy
- Bladder and Bowel Management
- Blood Pressure Testing
- Bowel and Bladder Management
- Certified Medical Examination for Commercial Driver / Vessel Master
Please contact Dr. Nienaber's office directly to confirm care for your specific procedure, for more information, or to schedule a consultation.
Does Dr. Nienaber accept my insurance?
Dr. Nienaber accepts most major insurance plans. Important: Please call our office at (310) 575-3100 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Nienaber accept in Santa Monica, CA?
Dr. Nienaber in Santa Monica, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Centene Corporation
City of Providence (RI)
CVS Health (formerly Aetna)
Elevance Health Inc. (formerly Anthem)
HealthRight Group
Humana
Medicare
Other Health Care Provider
State of California
UnitedHealth Group
View All Insurances
Where is Dr. Nienaber's office located?
Dr. Matthew Nienaber also offers virtual visits
Dr. Matthew Nienaber's Primary Practice
1821 Wilshire Blvd Ste 100
Santa Monica, CA 90403
(310) 575-3100
What hospitals are Dr. Nienaber affiliated with?
Castle Connolly Top Hospital
This doctor is affiliated with a Castle Connolly Top Hospital.
Dr. Nienaber has admitting privileges at the following hospitals:

Ranked ObGyn Surgery
Ranked in 2 Procedures
What is Dr. Nienaber's NPI number?A National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Nienaber's National Provider Identifier (NPI) number is 1033535182.
What common questions do patients ask about Dr. Nienaber?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Nienaber
What is Dr. Matthew Nienaber's specialty?
What does an Internist do?
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.