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Primary Care


Adult primary care services Riverdale of Montefiore Medical GroupInformation

3510 Johnson Avenue
Bronx, NY 10463

Phone: 718-601-8205
Fax: 718-601-8693

Specialty: Internal Medicine

Joanne Gasparini, Administrator
Katherine Kostakos, MD, Medical Director

Meet our physicians

The Medical Group's Riverdale practice, conveniently located on Johnson Avenue, provides excellent primary healthcare services for adults. Skilled physicians and nurses meet the needs of the community with compassion and sensitivity. Obstetrics, gynecology and specialty women's healthcare are easily obtained by referral to Montefiore's nearby Riverdale Women's Center.  In addition, diabetes self-management programs are available as part of Montefiore Medical Center. 

Making It Easier For You

In addition to outstanding medical care, we offer:

  • Same-day sick appointments (please call ahead)
  • Convenient hours and a 24-hour answering service
  • Bilingual staff who speak fluent English and Spanish and who can accommodate any other language needs through an extensive translation service
  • Referrals for home healthcare when necessary
  • Services for hearing and visually impaired patients

The Benefits of Choosing MMG

Choosing an MMG doctor means you gain access to Montefiore Medical Center and its extensive range of specialty services for your entire family. Our physicians are on the staff of Montefiore Medical Center, the University Hospital for Albert Einstein College of Medicine. We treat all major illnesses in a family-centered, compassionate environment.

Montefiore Medical Group Riverdale is conveniently located near the corner of Johnson Avenue and 235th Street and is easily accessible by car and public transportation. Metered parking is available.

By Bus
Take the Bx10 or Bx20 bus to the corner of Henry Hudson Parkway Eastbound Service Road and 235th Street. Walk three blocks on 235th Street. Turn onto Johnson Avenue and the office is second building on right.

By Train
Take Amtrak to BX10 bus and follow walking directions for bus.

By Car
MMG Riverdale is accessible from the Henry Hudson Parkway and I-87 (Major Deegan Expressway). Call for detailed directions.