27 Years of Experience
Affiliated with a Castle Connolly Top Hospital
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. Dr. Frei is fluent in English and Spanish, and is currently seeing new patients. Dr. Frei’s practice accepts Medicare 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 a Neurologist like Dr. Frei typically 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. Learn more about our claims-based healthcare methodology.
Also known as:
- Parkinson's Disease without Involuntary Movements
- Parkinson's Disease
- Parkinsonism
- Parkinson's Disease with Dyskinesia and Fluctuations
- Early Parkinson's
- Non-dyskinetic Parkinsonism
- Stable Parkinson's Disease
- PD
- Shaking Palsy
- Paralysis Agitans
- Parkinson's Syndrome
- Atypical Parkinsonism
- Secondary Parkinsonism
- Parkinson's with Variable Movements
- PD with Fluctuating Dyskinesia
- On-Off Parkinson's
ICD-10 Codes:
- G20A1: Parkinson's disease without dyskinesia, without mention of fluctuations
- G20: Parkinson's disease
- G20C: Parkinsonism, unspecified
- G20B2: Parkinson's disease with dyskinesia, with fluctuations
Also known as:
- Essential Tremor
- Other Tremor Disorder
- Tremor
- Essential tremor
- Familial Tremor
- Benign Essential Tremor
- Atypical Tremor
- Unusual Tremor
ICD-10 Codes:
- G250: Essential tremor
- G252: Other specified forms of tremor
Also known as:
- Spasmodic Torticollis
- Dystonia
- Cervical Dystonia
- Wry Neck
ICD-10 Codes:
- G243: Spasmodic torticollis
What procedures does a Neurologist like Dr. Frei typically perform?
As a Neurologist, Dr. Frei performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed 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. Learn more about our claims-based healthcare methodology.
Also known as:
- Facial Muscle Injection for Spasms (One Side)
- Botox for facial spasms
- Facial nerve chemodenervation
- Blepharospasm treatment
- Hemifacial spasm injection
CPT Codes:
- 64612: Chemodenervation of muscle(s); muscle(s) innervated by facial nerve, unilateral (eg, for blepharospasm, hemifacial spasm)
Also known as:
- Botox Injection for Neck Muscle Spasms
- Chemodenervation of neck muscles
- Botulinum toxin injection for cervical dystonia
- Neck spasm injection
CPT Codes:
- 64616: Chemodenervation of muscle(s); neck muscle(s), excluding muscles of the larynx, unilateral (eg, for cervical dystonia, spasmodic torticollis)
Also known as:
- Botox Injections for Chronic Migraine
- Chemodenervation for Migraine
- Botulinum Toxin Injection for Migraine
- Facial Nerve Block
- Trigeminal Nerve Block
CPT Codes:
- 64615: Chemodenervation of muscle(s); muscle(s) innervated by facial, trigeminal, cervical spinal and accessory nerves, bilateral (eg, for chronic migraine)
Also known as:
- Muscle Weakening Injection (Arm or Leg)
- Extremity Chemodenervation
- Spasticity Injection
- Botulinum Toxin Injection for Muscles
- Muscle Denervation
CPT Codes:
- 64642: Chemodenervation of one extremity; 1-4 muscle(s)
Also known as:
- Chemical Nerve Block for Multiple Muscles (Arm/Leg)
- Extremity Chemodenervation
- Muscle Spasticity Treatment (Chemical)
- Botox for Muscle Spasms (Multiple Muscles)
CPT Codes:
- 64644: Chemodenervation of one extremity; 5 or more muscles
Also known as:
- Salivary Gland Nerve Treatment (Bilateral)
- Botox for Salivary Glands
- Chemodenervation of Salivary Glands
- Parotid Gland Nerve Block
- Submandibular Gland Nerve Treatment
CPT Codes:
- 64611: Chemodenervation of parotid and submandibular salivary glands, bilateral
Also known as:
- Chemical Nerve Block for Muscle Spasms (Additional Extremity)
- Chemodenervation of Extremity Muscles
- Botox for Muscle Spasms (Additional Limb)
- Nerve-Blocking Injection for Spasticity
CPT Codes:
- 64645: Chemodenervation of one extremity; each additional extremity, 5 or more muscles (List separately in addition to code for primary procedure)
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 Third Party
Blue Shield of California
Elevance Health Inc. (formerly Anthem)
Federal government of the United States
Inland Empire
Inland Empire Health Plan
Medicare
Other Health Care Provider
UnitedHealth Group
Unknown
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.
What does a Neurologist do?
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.