Nephrology in Portland, Maine
Data updated monthly · Last refresh September 2026
24 Nephrology providers practice in Portland. Listings are drawn from federal public records and are not endorsements.
Nephrology providers in Portland
Listed alphabetically. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Abd Assalam Qannus, M.D.Portland, ME · $252 in drug and device payments (2025) ·
(207) 662-7872 Dr. Alan Segal, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Brad Schimelman, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Carl Blond, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Eric Holmes, PA-CPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Eric Taylor, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Gary Diperna, DOPortland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 774-5222 Dr. Grant Oakley, D.O.Portland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 774-5222 Dr. Hassan Mahmoud, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Ioan Cosma, MDPortland, ME · $49 in drug and device payments (2025) ·
(207) 774-5222 Dr. James Wasserman, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. John Vella, M.D.Portland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 774-5222 Dr. Jonathan Amatruda, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Mahendra Mangray, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Mark Parker, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 662-0111 Dr. Michael Akom, M.D.Portland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Patricia Cantlin, DOPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Paul Parker, MDPortland, ME · $41 in drug and device payments (2025) · Telehealth ·
(207) 774-5222 Dr. Prasheen Shah, MDPortland, ME · No drug or device payments recorded (2025) · Telehealth ·
(207) 774-5222 Dr. Robert Hayden, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Robert Isom, M.D.Portland, ME · $1,095 in drug and device payments (2025) ·
(207) 774-5222 Dr. Sean Hebert, MDPortland, ME · $29 in drug and device payments (2025) · Telehealth ·
(207) 662-7180 Dr. Stepfany Fuentes, DOPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Dr. Zain Alshanableh, MDPortland, ME · No drug or device payments recorded (2025) ·
(207) 774-5222 Conditions Nephrology providers in Portland, Maine commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Nephrology providers. Individual practices vary, so confirm with the provider before booking.
- Chronic kidney disease
- Kidney stones
- Dialysis care
- High blood pressure
Common questions
How many Nephrology providers are in Portland, Maine?There are 24 Nephrology providers with active NPI records practicing in Portland, according to federal NPPES data refreshed monthly.
What conditions do Nephrology providers in Portland treat?Nephrology providers in Portland commonly treat chronic kidney disease, kidney stones, dialysis care, high blood pressure and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider records come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
All specialties in Portland Nephrology across Maine