Summary

Dr. Gregory Allen is a neurologist and psychiatrist who earned his medical degree from Wayne State University School of Medicine. With over five decades of medical practice, he brings extensive expertise in treating disorders of the nervous system and mental health conditions. His dual specialization allows him to provide comprehensive care for patients with complex neurological and psychiatric needs.

Dr. Allen practices at multiple locations including Billings, Montana, Southfield, Michigan, and Indianapolis, Indiana. He is affiliated with Billings Clinic in Montana, where he serves patients throughout the region. His long-standing career has given him deep experience in managing a wide range of neurological and psychiatric conditions. Patients have given him an average rating of 1.0 on Vitals.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 1
  • 54 years of experience
  • Wayne State University School Of Medicine
  • 1 written review
  • 2 specialties
  • 1 area of expertise
  • 3 office locations
  • Male

Office Locations

Dr. Gregory J Allen has 3 locations

Billings Clinic

801 N 29th StBillings, MT 59101
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Dr. Gregory J Allen

25426 Edgemont DrSouthfield, MI 48033

Hamilton Center Inc Marion County

2160 N Illinois StIndianapolis, IN 46202
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

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Dr. Gregory J Allen, MD
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Dr. Gregory J Allen, MDDr. Terry Mark Himes, DODr. Konstantin Karmazin, MDDr. Belinda Frances Hartley, MD
NeurologyNeurologyNeurologyPsychiatry
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.1 
3.1 
54 Years of Experience 43 Years of Experience 10 Years of Experience 25 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available No Virtual Visit Option
Speaks English Speaks English, Russian Speaks English
Billings , MTLas Vegas , NVSeattle , WABillings , MT
Med School: Wayne State University School Of Medicine Med School: Oklahoma State Univ Center For Health Sciences College Of Osteopathic Med Med School: Georgetown University School Of Medicine Med School: University Of Louisville School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Gregory J Allen

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Gregory J Allen has the following 2 specialties

Specialty Expertise

Dr. Gregory J Allen has the following area of expertise

  • Psychiatry

Certifications, License, & Education

54 Years Experience

Education & Training

Medical School

Graduated from Wayne State University School Of Medicine in 1972.

NPI Number

Dr. Allen's NPI number is 1619198603.

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Frequently Asked Questions

Does Dr. Gregory Allen accept my insurance?
You can see the insurance plans that Dr. Gregory Allen accepts on their Vitals profile.
Is Dr. Gregory Allen accepting new patients?
Dr. Gregory Allen is accepting new patients on Vitals. View Dr. Gregory Allen's profile on Vitals to make an appointment.
How can I make an appointment with Dr. Gregory Allen?
You can find contact information for Dr. Gregory Allen here on Vitals.
Where is Dr. Gregory Allen's office located?
Dr. Gregory Allen's office is located at 801 N 29th St, Billings, MT, 59101.
Does Dr. Gregory Allen accept virtual/telehealth appointments?
Dr. Gregory Allen has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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