KF
27 Years of Experience
Accepting patients
Who is Dr. Frei, Neurologist in Rancho Cucamonga, CA?
Dr. Karen Frei, MD is a Neurologist, who primarily practices in Rancho Cucamonga, CA with 1 additional practice location. She has been practicing for over 27 years and is board certified. Dr. Frei is fluent in English and Spanish, and is currently seeing new patients. Dr. Frei’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Frei’s office at (909) 588-2880.
Where did Dr. Frei go to medical school and complete their residency?
Medical School: Thomas Jefferson University Jefferson Medical College | Jefferson Medical College of Thomas Jefferson University
What languages does Dr. Frei speak?
Dr. Frei and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Frei treat?
As a Neurologist, Dr. Frei 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. Frei. 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.
Also known as:
- Parkinson's Disease
- Parkinson's Disease without Involuntary Movements
- Parkinsonism
- Parkinson's Disease with Dyskinesia and Fluctuations
- PD
- Shaking Palsy
- Paralysis Agitans
- Early Parkinson's', 'Non-dyskinetic Parkinsonism', 'Stable Parkinson's Disease
- Parkinson's Syndrome
- Atypical Parkinsonism
- Secondary Parkinsonism
- Parkinson's with Variable Movements', 'PD with Fluctuating Dyskinesia', 'On-Off Parkinson's
ICD-10 Codes:
- G20: Parkinson's disease
- G20A1: Parkinson's disease without dyskinesia, without mention of fluctuations
- G20C: Parkinsonism, unspecified
- G20B2: Parkinson's disease with dyskinesia, with fluctuations
Also known as:
- Other Tremor Disorder
- Essential Tremor
- Tremor
- Essential tremor
- Atypical Tremor
- Unusual Tremor
- Familial Tremor
- Benign Essential Tremor
ICD-10 Codes:
- G252: Other specified forms of tremor
- G250: Essential tremor
Also known as:
- Spasmodic Torticollis
- Dystonia
- Drug-Induced Dyskinesia
- Drug Reactions
- Cervical Dystonia
- Wry Neck
- Muscle Spasm Disorder
- Involuntary Muscle Contractions
- Movement Disorder
- Medication-Induced Movement Disorder
- Tardive Dyskinesia
- Drug Side Effect Dystonia
ICD-10 Codes:
- G243: Spasmodic torticollis
- G248: Other dystonia
- G2401: Drug induced subacute dyskinesia
Also known as:
- Walking and Mobility Problems
- Walking Problems
- Gait Abnormalities
- Trouble Moving
- Mobility Issues
ICD-10 Codes:
- R269: Unspecified abnormalities of gait and mobility
Also known as:
- Myoclonus
- Tremor
- Movement Disorder
- Muscle Jerks
- Involuntary Muscle Twitches
- Shaking
- Involuntary Shaking
- Essential Tremor
- Parkinsonian Tremor
ICD-10 Codes:
- G253: Myoclonus
- R251: Tremor, unspecified
Also known as:
- Other Functional Implants
- Various Medical Devices
- Specialized Implants
- Functional Prosthetics
ICD-10 Codes:
- Z9689: Presence of other specified functional implants
Also known as:
- Left Hemifacial Spasm
- Facial Injuries and Disorder
- Left Facial Twitch
- Left Facial Muscle Spasm
- Left Side Facial Tic
ICD-10 Codes:
- G5132: Clonic hemifacial spasm, left
Also known as:
- Blepharospasm
- Eyelid Disorder
- Benign essential blepharospasm
- Eyelid Spasms
- Benign Essential Blepharospasm
- Involuntary Eye Twitching
ICD-10 Codes:
- G245: Blepharospasm
Also known as:
- Right-Sided Hemifacial Spasm
- Facial Injuries and Disorder
- Right Facial Twitch
- Involuntary Right Facial Contractions
ICD-10 Codes:
- G5131: Clonic hemifacial spasm, right
Also known as:
- Dry Mouth
- Salivary Gland Disorder
- Xerostomia
- Lack of Saliva
- Saliva Production Problems
ICD-10 Codes:
- K117: Disturbances of salivary secretion
Also known as:
- Restless Legs Syndrome
- Restless Legs
- Restless legs syndrome
- RLS
- Willis-Ekbom Disease
ICD-10 Codes:
- G2581: Restless legs syndrome
Also known as:
- Seizures
- Epilepsy
- Convulsions
- Fits
ICD-10 Codes:
- R569: Unspecified convulsions
Also known as:
- Walking Problems
- Gait Abnormalities
- Difficulty Walking
- Unsteady Gait
- Balance Problems
ICD-10 Codes:
- R2689: Other abnormalities of gait and mobility
Which procedures does Dr. Frei perform as a Neurologist?
As a Neurologist, procedures performed by a Dr. Karen Frei may include:
- Aging Brain (Neuropsychological Testing)
- Cortical Basal Ganglionic Degeneration (CBGD)
- Deep Brain Stimulation
- Disturbance of Skin Sensation
- Electroencephalogram (EEG)
- Evoked Potential Testing
- Gait Simulation
- Greater Occipital Nerve (GON) Block
For detailed information, please contact Dr. Frei's office.
Does Dr. Frei accept my insurance?
Dr. Frei accepts most major insurance plans. Important: Please call our office at (909) 588-2880 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Frei accept in Rancho Cucamonga, CA?
Dr. Frei in Rancho Cucamonga, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Commercial
All Other Third Party
Blue Shield of California
Elevance Health Inc. (formerly Anthem)
Heritage Health
Inland Empire
Inland Faculty Medical Group, Inc
Medicare
Other Health Care Provider
UnitedHealthcare
View All Insurances
Where is Dr. Frei's office located?
Dr. Karen Frei's Primary Practice
8599 Haven Ave Ste 102
Rancho Cucamonga, CA 91730
(909) 588-2880
What is Dr. Frei's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Frei's National Provider Identifier (NPI) number is 1902836141.
What common questions do patients ask about Dr. Frei?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Frei
What is Dr. Karen Frei's specialty?
Dr. Frei is a Neurologist near Rancho Cucamonga, CA.
A neuropathologist is expert in the diagnosis of diseases of the nervous system and skeletal muscles and functions as a consultant primarily to neurologists and neurosurgeons. The neuropathologist is knowledgeable in the infirmities of humans as they affect the nervous and neuromuscular systems, be they degenerative, infectious, metabolic, immunologic, neoplastic, vascular or physical in nature.
Contact Dr. Frei to book an appointment today.Is this Dr. Karen Frei affiliated with a ranked Castle Connolly Top Hospital?
No, Frei is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: Loma Linda University Medical Center, Pomona Valley Hospital Medical Center. Castle Connolly Top Hospitals are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
Where can I learn more about Neurologist?
Explore Neurologist with insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Karen Frei accepting new patients in Rancho Cucamonga, CA?
Yes, Dr. Karen Frei is accepting new patients at this time.
Does Dr. Karen Frei offer online booking?
Please contact Dr. Frei's office at (909) 588-2880 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Karen Frei?
Please contact Dr. Frei's office at (909) 588-2880 for information regarding telehealth appointment availability or for scheduling assistance.
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