Summary

Dr. Allen Nielsen is a neurologist who graduated from the University of Colorado School of Medicine. With 21 years of experience in neurology, he focuses on caring for patients with complex neurological conditions. Dr. Nielsen speaks English and brings over two decades of specialized knowledge to his practice.

Dr. Nielsen practices at Kaiser Foundation Hospital in Fontana, California. He specializes in treating multiple sclerosis, including primary progressive and progressive relapsing forms of the condition. His expertise includes ordering comprehensive metabolic panels and MRI imaging to help diagnose and monitor neurological disorders. Patients have given him an average rating of 4.4 out of 5 stars.

AI-generated from data on this provider profile.

Quick Facts

  • 4.4
  • 21 years of experience
  • 38 insurance plans accepted
  • speaks English
  • University Of Colorado School Of Medicine
  • 3 written reviews
  • 1 specialty
  • 9 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 1 office location
  • Male

Office Location

Kaiser Foundation Hospital

9961 Sierra AveFontana, CA 92335

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Dr. Allen Scott Nielsen, MDDr. Ali Elahi, MDDr. Sara Zarei, MD, PhDDr. Mariana Schmajuk, MD
NeurologyNeurologyNeurologyNeurology
Accepts New Patients Accepts New Patients Accepts New Patients
4.4 
3.3 
21 Years of Experience 26 Years of Experience 8 Years of Experience 14 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English, German, Persian, Spanish Speaks English, Spanish, Farsi Speaks English, Spanish
Fontana , CACORONA DEL MAR , CAOrange , CALos Altos , CA
Med School: University Of Colorado School Of Medicine Med School: University Of Pittsburgh School Of Medicine Med School: San Juan Bautista School Of Medicine Med School: Columbia University Presbyterian Hospital - New York, NY
Current Profile
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Insurance Plans Accepted by Dr. Allen Scott Nielsen

  • Aetna
  • Alignment Health Plan
  • Alignment Health Plan - HMO
  • AlphaCare
  • Anthem Blue Cross
  • Blue Cross Blue Shield
  • BLUE CROSS of CALIFORNIA
  • Blue Cross of Idaho
  • Blue Shield of California
  • Blue Shield of California - HMO
  • CalOptima
  • CalOptima - Medicaid
  • CalOptima - Medicaid (Managed)
  • Cigna
  • Contra Costa Health Plan
  • Health Net
  • Health Net - HMO
  • Humana
  • Humana - HMO
  • Inland Empire Health Plan
  • Inland Empire Health Plan - Medicaid
  • Kaiser Permanente
  • Kaiser Permanente - DHMO
  • Kaiser Permanente - HMO
  • Kaiser Permanente - Medicaid (Managed)
  • L.A. Care Health Plan
  • L.A. Care Health Plan - HMO
  • Medicare
  • Medicare - Medicare
  • Molina Healthcare
  • Molina Healthcare - HMO
  • Molina Healthcare - Medicaid
  • Optum Health
  • Regence BlueShield of Idaho
  • SCAN Health Plan
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - HMO

Medical Specialties

Dr. Allen Scott Nielsen has the following specialty

Specialty Expertise

Dr. Allen Scott Nielsen has the following 9 areas of expertise

  • Alzheimer's Disease
  • Electromyography
  • Epilepsy
  • Headache
  • Migraine Disorder
  • Migraine Disorders
  • Multiple Sclerosis (MS)
  • Nerve Conduction Studies
  • Stroke

Certifications, License, & Education

21 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2026, Active

EDUCATION & TRAINING

Medical School

University Of Colorado School Of MedicineGraduated in 2005

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Frequently Asked Questions

Where is Dr. Allen Nielsen's office located?
Dr. Allen Nielsen's office is located at 9961 Sierra Ave, Fontana, CA, 92335.
Does Dr. Allen Nielsen accept virtual/telehealth appointments?
Dr. Allen Nielsen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. Allen Nielsen affiliated with?
Dr. Allen Nielsen is affiliated with Kaiser Foundation Hospital.
Does Dr. Allen Nielsen accept my insurance?
You can see the insurance plans that Dr. Allen Nielsen accepts on their Vitals profile.
How can I make an appointment with Dr. Allen Nielsen?
You can find contact information for Dr. Allen Nielsen here on Vitals.

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