Summary

Dr. Gunyan graduated from the New York College of Osteopathic Medicine in 2009. He works in Baldwin, NY and 2 other locations and specializes in Psychiatry. Dr. Gunyan is affiliated with Mount Sinai South Nassau.

Quick Facts

  • 4
  • 17 years of experience
  • Stony Brook University Medical Center
  • 4 written reviews
  • 1 specialty
  • 9 areas of expertise
  • 1 hospital affiliation
  • 3 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Gregory J Gunyan has 3 locations

Mount Sinai South Nassau Mental Health Counseling Center

2277 Grand AveBaldwin, NY 11510
Mon8:00 am - 10:00 pm
Tue8:00 am - 10:00 pm
Wed8:00 am - 10:00 pm
Thu8:00 am - 10:00 pm
Fri9:00 am - 5:00 pm
Sat8:00 am - 5:00 pm
SunClosed

Dr. Gregory J Gunyan

222 Station Plz N Ste 350AMineola, NY 11501

Mount Sinai South Nassau

1 Healthy WayOceanside, NY 11572

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Dr. Gregory J Gunyan, DO
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Dr. Gregory J Gunyan, DODr. Millicent Brown, DHEd, PMHNP, AHNP-BDr. Maxine Zhou, MDJanet Hsieh-Li, PMHNP
PsychiatryPsychiatryPsychiatryPsychiatry
Accepts New Patients Accepts New Patients Accepts New Patients
17 Years of Experience 22 Years of Experience 8 Years of Experience 2 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English, Spanish
Baldwin , NYMount Vernon , NYMetairie , LANew York , NY
Med School: New York College Of Osteopathic Medicine Med School: Texas Tech University Health Sciences Center School Of Medicine Med School: DYouville University
Current Profile
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Insurance Plans Accepted by Dr. Gregory J Gunyan

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Gregory J Gunyan has the following specialty

Specialty Expertise

Dr. Gregory J Gunyan has the following 9 areas of expertise

  • Attention-Deficit/Hyperactivity Disorder (ADHD)
  • Bipolar Disorder
  • Clinical Depression
  • Insomnia
  • Manic Depressive Disorder
  • Mental Illness
  • Mood Disorders
  • Personality Disorder
  • Schizophrenia

Certifications, License, & Education

17 Years Experience

Dr. Gregory J Gunyan holds an active medical license in the state of New York.

Medical License

Doctor Of Osteopathy with an active medical license in the state of New York that expired in 2026.

Education & Training

Residency

Completed their residency at Stony Brook University Medical Center.

Medical School

Graduated from New York College Of Osteopathic Medicine in 2009.

NPI Number

Dr. Gunyan's NPI number is 1528386265.

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Frequently Asked Questions

Is Dr. Gregory Gunyan accepting new patients?
Dr. Gregory Gunyan has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Gregory Gunyan accept my insurance?
You can see the insurance plans that Dr. Gregory Gunyan accepts on their Vitals profile.
Which hospitals is Dr. Gregory Gunyan affiliated with?
Dr. Gregory Gunyan is affiliated with Mount Sinai South Nassau.
Does Dr. Gregory Gunyan accept virtual/telehealth appointments?
Dr. Gregory Gunyan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Where is Dr. Gregory Gunyan's office located?
Dr. Gregory Gunyan's office is located at 2277 Grand Ave, Baldwin, NY, 11510.

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