About Us


Our experienced providers, nurses and staff are proud to be a part of a practice that has served families in the Hudson Valley area for more than 50 years. We are privileged to have served more than three generations at our practice, building strong relationships, mutual trust and confidence with our patients along the way.

We are unique in that our physicians take care of patients in two settings – at the office, and in patient homes. It’s a part of our commitment to excellence, which is based on three principles:

  • Caring staff
  • Availability (same day for sick visits)
  • Evaluation (after-preventive care)

Our Internal Medicine practice is among the best in New York State. In providing specialized care of adult medical illnesses, all of our internists are board-certified in Internal Medicine and in their respective sub-specialties.

Please take the time to browse through our website and learn more about our excellent services and physicians. We are here to serve, always.


At Poughkeepsie Medical Group, LLP, our providers are dedicated to providing the finest medical care in the Hudson Valley area. Since 1962, we have provided expert care in internal medicine.

Our providers are board-certified in internal medicine, with some board-certified in sub-specialties. All are committed to the highest quality care for our hospitalized patients, as well as those who visit our offices. Our providers remain in constant communication to ensure a continuity of safe, convenient and personalized care.

The Internists at Poughkeepsie Medical Group keep office hours six (6) days per week in Poughkeepsie to provide the best availability to adults of all ages.

The Poughkeepsie Medical Group presently consists of 1 physician and 18 staff members. Following are biographies of our esteemed doctor: Dr. Sumita S. Mazumdar, and our nurse practitioners.

Dr. Sumita Mazumdar, MD, FACP

1982 – 1989: MBBS, MPShah Medical College, India, Achievement of President’s Medal for Women’s First in State of Gujarat, India

1989 – 1992: MD Residency OBGYN at MPShah Medical College, India

1992 – 1996: MD practiced OBGYN at private hospital, Saudi Arabia

1998 – 2001: MD Residency Internal Medicine at Long Island College Hospital, Brooklyn, NY

2001 – Present: Practicing Internal Medicine at Poughkeepsie Medical Group, NY. 

Thomas J. Aleo Sr.

Board Certified Hearing Instrument Specialist

Mandeep K. Saini, FNP-C 

2008:Dutchess Community College, Poughkeepsie, NY

2008 – 2012: Wingate at Ulster

2011: SUNY New Paltz, New Paltz, NY

2013: SUNY Upstate Medical University, Syracuse, NY

2012 – 2014: Elderwood at Liverpool, Liverpool, NY

2015 – Present: Poughkeepsie Medical Group

Rajupet Rajareddy

Diagnostic Ultrasound Tech

1973: BS from Bangalore University

Bengaluru, India

1980: Ultrasound Institute 

Hoboken, NJ

1981-1982: MBA from Wagner College

New York, NY

2006 - Present: Poughkeepsie Medical Group

Gail Nastasi, FNP-BC

 1990: Bachelor of Arts

Binghamton University Binghamton, NY

1996: Master of Science in Human Genetics Specializing in Genetic Counseling

Sarah Lawrence College Bronxville, NY

2013: Bachelor of Science in Nursing

Mount St. Mary College Newburgh, NY

2021: Master of Science in Nursing specializing in Family Practice

Mount St. Mary College Newburgh, NY

2022 - Present: Poughkeepsie Medical Group