Riverside Psychiatric

Doctor Profiles

Specialties and Bios of Our Doctors

Tahir Sheikh, M.D.

Practice Director

Director/Psychiatry

Dr. SheikhDr. Tahir Sheikh has over 30 years of unrivaled experience in psychiatric care in the Chicagoland area. In 1968 he received his Doctor of Medicine degree from the King Edward Medical College in Lahore, Pakistan. Dr. Sheikh completed his psychiatric residency at Washington University in St. Louis, Missouri in 1976. Throughout the course of his distinguished career, Dr. Sheikh has taught and mentored resident physicians, lectured on various mental health topics, and chaired the Department of Psychiatry at MacNeal Hospital in Berwyn, Illinois. His body of work is a testament to the preeminent care offered at Riverside Psychiatric & Counseling Associates. Dr. Sheikh sees patients on Mondays and Thursdays in the Riverside office and on Tuesdays in the Downers Grove office.

Hospital Affiliations:

  • MacNeal Hospital, Berwyn
  • Adventist Hinsdale Memorial Hospital, Hinsdale
  • Adventist LaGrange Memorial Hospital, LaGrange
  • Advocate Good Samaritan Hospital, Downers Grove

Maleeha Ahsan, M.D.

Adolescent, Adult, & Geriatric Psychiatry

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Dr. Ahsan has been with Riverside Psychiatric and Counseling Associates since 1996. In 1986 she earned her Bachelor of Medicine, Bachelor of Surgery degree from Sind Medical College in Karachi, Pakistan. She completed her psychiatric residency program at Loyola University and Medical Center, Maywood, Illinois in 1996 and is board certified in general psychiatry. Her diverse medical background includes clinical experience, forensic psychiatry, public speaking on behavioral health issues and various teaching assignments. Dr. Ahsan sees patients in the Downers Grove office Mondays through Thursdays.

Hospital Affiliations:

  • Advocate Good Samaritan Hospital, Downers Grove
  • Linden Oaks Hospital, Naperville

Pravin Bhatt, M.D.

Adult, & Geriatric Psychiatry

Dr. Bhatt passed away on Friday, June 17th, 2011 as a result of complications from treatment of lymphoma. Dr. Bhatt was a much loved member of our practice for many years, and we will all miss him dearly.

    Abid K. Nazeer, M.D.

    Adult Psychiatry

    Dr. Nazeer joined Riverside Psychiatric & Counseling Associates in August 2011. He received his Bachelor of Medicine, Bachelor of Surgery degree from Frontier Medical College in Abbottabad, Pakistan in 2001 and completed his residency at Louisiana State University Health Services Center in Shreveport, Louisiana. He is board certified in general psychiatry. Dr. Nazeer believes in understanding the patients’s unique situation and using modern methods to treat their problems. He strives to provide a unique solution for each patient’s specific problem. Dr. Nazeer sees patients in the Riverside office on Mondays through Thursdays.

    Hospital Affiliations:

    • MacNeal Memorial Hospital, Berwyn

    Lee Weiss, M.D.

    Adult Psychiatry

    Dr. Weiss joined Riverside Psychiatric & Counseling Associates in August 2011. He received his Doctor of Medicine degree from Northwestern University Medical School and did his residency at the Illinois State Psychiatric Institute, Chicago. Dr. Weiss is board certified in general psychiatry and has many years of clinical experience. His knowledge and expertise truly translates into the very best in behavioral healthcare. Dr. Weiss sees patients in the Riverside office Mondays through Fridays and in the Downers Grove office on Saturdays.

    Hospital Affiliations:

    • MacNeal Memorial Hospital, Berwyn
    • Richard Koenig, M.D.

      Child, Adolescent & Adult Psychiatry

      koenigDr. Koenig earned his Doctor of Medicine degree from the University of Chicago in 1951 and went on to do his residency at the University Of Chicago Institute Of Juvenile Research. Throughout his career, Dr. Koenig has held numerous academic positions at the University of Illinois Medical School and Rush Medical School. He has been involved with various healthcare organizations such as the Henry Horner Children’s Center, Illinois State Psychiatric Institute, the Institute for Juvenile Research, the Will County Guidance Clinic, and Rush Presbyterian-St. Luke’s Hospital. Dr. Koenig sees patients in the Riverside office Tuesdays through Fridays.

      Hospital Affiliations:

  • Dr. Koenig is in private practice only.
  • Nancy Pecen, M.D.

    Child, Adolescent & Adult Psychiatry

    Dr. PecenDr. Pecen completed a Residency in Psychiatry at Mt. Sinai Hospital and Medical Center in Chicago. She continued her training, receiving a Fellowship in Child Psychiatry from the University of Illinois at the Institute for Juvenile Research and a Fellowship in Neurology from Cook County Hospital. She specializes in the treatment of children, beginning at age five, and adolescents. She also has extensive experience in treating adults in private practice. She is a member of the Academy of Child and Adolescent Psychiatry, the American Psychiatric Association, the Illinois Psychiatric Association and the International Society for Adolescent Psychiatry. Dr. Pecen is board certified in general psychiatry and sees patients in the Downers Grove office on Mondays through Thursdays and Saturdays.

    Hospital Affiliations:

    • Dr. Pecen is in private practice only