











Participating Providers


Providence Office
Adult Medicine: (401) 793-8400
Warwick Office
Adult & Pediatric Medicine: (401) 793-8520








Providence Providers

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Lincoln Providers






Warwick Providers


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Associates by location: Providence | Lincoln | Warwick
Associates by location: Providence | Lincoln | Warwick
Associates by location: Providence | Lincoln | Warwick
Heidi Dorris, MD
Providence Internal Medicine 
Education: Brown University, Providence, RI
1984 ~ B.A., Engineering 1991 ~ Postbaccalaureate 1996 ~ M.D.
Postgraduate Education: Internship/Residency: Brown University, Providence, RI 1996-1999 ~ General Medicine
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Internal Medicine
Joan Goddard. MD
Providence Internal Medicine
Education: Brown University, Providence, RI 1976 ~ B.S 1979 ~ M.D.
Postgraduate Education: Internship/Residency: Berkshire Medical Center, Pittsfield, MA PGY - 1, 2, 3 1972-1982 ~ Internal Medicine
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Internal Medicine
William Mason, MD
Providence Internal Medicine
Education: Harvard College, Cambridge, MA 1967 ~ B.S.
University of Cincinnati, Cincinnati, OH 1974 ~ M.D.
Postgraduate Education: Internship/Residency: Rhode Island Hospital, Providence, RI 1974-1977 ~ General Medicine
Fellowship: Roger Williams Hospital, Providence, RI 1977-1979 ~ Rheumatology
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Internal Medicine and ~ Rheumatology
Robert Mathieu, MD
Providence Internal Medicine
Education: Tufts University, Medford, MA 1979 ~ B.S.
Tufts Univ. School of Medicine, Boston, MA 1984 ~ M.D.
Postgraduate Education: Internship: The Miriam Hospital, Providence, RI 1984-1985 ~ Internal Medicine
Davie's Medical Center, Sacromento, CA 1986-1988 ~ Internal Medicine
Residency: Tufts NE Medical Center Hosp., Boston, MA 1985-1986 ~ Anesthesiology
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Internal Medicine
Diane Siedlecki, MD
Providence Internal Medicine
Education: Niagara University, Niagara Falls, NY 1976 ~ B.S., Nursing
Rutgers University, Newark, NJ 1983 ~ Pre-Med
Georgetown School of Medicine, Wash., DC 1983 ~ M.D.
Postgraduate Education: Internship/Residency: Albert Einstein College of Medicine, Bronx, NY 1983-1986 ~ Internal Medicine
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Internal Medicine
Caroline Troise, MD
Providence Internal Medicine
Education: St. John's University, Jamaica, NY 1971 ~ B.S., Chemistry
Harvard University, Cambridge, MA 1978 ~ Ph.D. Organic Chemistry
Miami School of Medicine, Miami, FL 1980 ~ M.D.
Postgraduate Education: Internship/Residency: Rhode Island Hospital, Providence, RI 1980-1983 ~ Internal Medicine
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Internal Medicine
Elizabeth Buckley, PA-C
Providence Internal Medicine
Education: University of North Carolina, Greensboro, NC 1970 ~ B.A.
Wake Forest University, Winston-Salem, NC 1974 ~ M.A., Biology
Bowman Gray School of Medicine, NC 1977 ~ P.A.-C
Professional Licensure: National Commission of Certified Physician Assistants
Rhode Island State Registered
Rex Appenfeller, MD
Lincoln Internal Medicine
Education: Universary of Kansas, Lawrence, KS 1976 ~ B.A., Microbiology
Kansas School of Medicine, Kansas City, KS 1979 ~ M.D.
Postgraduate Education: Internship/Residency: Roger Williams General Hospital, Prov., RI
1979-1982 ~ Internal Medicine 1982-1983 ~ Chief Residency Internal Med.
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Internal Medicine
Robyn Ostapow, PA-C
Providence Internal Medicine
Education: Sacred Heart University, Fairfield, CT 2002 ~ B.S., Psychology
Lockhaven Univ. of Pennsylvania., PA 2005 ~ P.A.-C.
Professional Licensure: National Commission of Certified Physician Assistants
Rhode Island State Registered
Kathleen Henderson, MD
Lincoln Internal Medicine
Education: College of Holy Cross, Worcester, MA 1980 ~ B.A.
Robert Wood Johnson School of Med., Piscataway, NJ 1985 ~ M.D.
Postgraduate Education: Internship/Residency:Medical College of Virginia, Richmond, VA 1985-1988 ~ Internal Medicine
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Internal Medicine
Robert Cohen, MD
Lincoln Internal Medicine
Education: Brown University, Providence, RI 1976 ~ B.A., Biochemistry
New York Medical College, Valhalla, NY 1980 ~ M.D.
Postgraduate Education: Internship/Residency: Rhode Island Hospital, Providence, RI 1980-1983 ~ Internal Medicine
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Internal Medicine
Jennifer Raney, MD
Lincoln Internal Medicine
Education: Williams College, Williamstown, MA 1993 ~ B.A., Biology
Jefferson Medical College of Thomas Jefferson University, Philadelphia, PA 1999 ~ M.D.
Postgraduate Education: Internship/Residency: Memorial Hospital of RI, Pawtucket, RI 1999-2002 ~ Family Practice Medicine
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Family Practice Medicine
George Connors, PA-C
Lincoln Internal Medicine
Education: University of Rhode Island, Kingston, RI 1976 ~ B.S., Nursing
Yale Univ. School of Med., New Haven, CT 1983 ~ PA-C
Professional Licensure: National Commission of Certified Physician Assistants
Rhode Island State Registered
Robert Ellison, MD
Warwick Pediatric & Adult Medicine
Education: New York University, Bronx, NY 1968 ~ B.A., History
Albany Medical College, Albany, NY 1972 ~ M.D.
Postgraduate Education: Internship/Residency: Nausau County Medical Center, East Meadow, NY 1972-1975 ~ Internal Medicine
Fellowship: Rhode Island Hospital, Providence, RI 1975-1977 ~ Clinical Hematology
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Internal Medicine
Nicholas Grumbach, MD
Warwick Pediatric & Adult Medicine
Education: Bowdoin College, Brunswick, NE 1988 ~ B.A., Biology and History
Mount Sinai School of Medicine, New York, NY 1996 ~ M.D.
Postgraduate Education: Internship/Residency/Chief Residency: Brown University School of Medicine, Providence, RI
Rhode Island Hospital/Hasbro Children's Hospital 1996-2000 ~ Combined Internal Medicine/Pediatrics
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI ; Board Certified ~ Internal Medicine and ~ General Pediatric Medicine
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George Hardy, MD
Warwick Pediatric & Adult Medicine
Education: Haverford College, Haverford, PA 1996 ~ B.A., English
Bryn Mawr College, Bryn Mawr, PA 2001 ~ Postbaccalaureate degree
Alpert Medical School at Brown University, Providence, RI 2005 ~ M.D.
Postgraduate Education: Internship/Residency/Chief Residency: Brown University School of Medicine, Providence, RI
Rhode Island Hospital/Hasbro Children's Hospital 2005-2009 ~ Combined Internal Medicine/Pediatrics
Hospital Privileges: The Miriam Hospital, Providence, RI and Rhode Island Hospital, Providence, RI
Professional Licensure: Medical License, State of RI; Board Certified ~ Internal Medicine; Board Eligible ~ General Pediatric Medicine
John Kochanski, PA-C
Warwick Pediatric & Adult Medicine
Education: Rutgers University, New Jersey 1970 ~ B.A., Biology
Northeastern University, Boston, MA 1976 ~ PA-C
Professional Licensure: National Commission of Certified Physician Assistants
Rhode Island State Registered
Gregg Oehler, PA-C
Warwick Pediatric & Adult Medicine
Education: State University of NY and Stony Brook, NY 1980 ~ B.S., Health Sciences 1983 ~ PA-C
Professional Licensure: National Commission of Certified Physician Assistants
Rhode Island State Registered
