Patient Reviews

Reviews reflect patients' level of satisfaction with the care they received from this provider. Dr. John Allen xhas an overall rating of 3.0.


Dr. John Allen, MD is a Doctor primarily located in New Haven, CT, with other offices in Minneapolis, MN and Minneapolis, MN (and 5 other locations). He has 40 years of experience. His specialties include Gastroenterology and Internal Medicine. Dr. Allen is affiliated with Yale-New Haven Hospital, Unity Hospital and Abbott NW Hospital. He speaks English.


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Learn where this doctor attended medical school.

Locations & Directions

Yale Digestive Diseases

40 Temple St
New Haven, CT 06510

Minnesota Gastroenterology

15700 37th Ave N
Minneapolis, MN 55446

Minnesota Gastroenterology

5705 W Old Shakopee Rd
Minneapolis, MN 55437

Minnesota Gastroenterology

1973 Sloan Pl
Saint Paul, MN 55117

Minnesota Gastroenterology

9145 Springbrook Dr NW
Minneapolis, MN 55433

Minnesota Gastroenterology

2200 University Ave W
Saint Paul, MN 55114

1185 Town Centre Dr
Saint Paul, MN 55123

611 S Sibley Ave
Litchfield, MN 55355

Nearby Doctors

Dr. John Allen, MD is similar to these 3 Doctors near New Haven, CT.