Michael Portner, MD
Nephrology
About
Bio coming soon.
Are you Michael Portner, MD?
Claim your profile
Verify your identity, update your credentials, and take ownership of your listing on PBCMMG.
Credentials & Recognition
Specialties
NPI sub-specialties
Internal Medicine, Nephrology207RN0300X
Practice Signals
Editorial signals beyond credentials. Patient transparency over opacity. See methodology.
Mid-Level (PA/NP) Use
Doctor-led visits
Years in Practice
20+ years
Estimated from NPI enumeration date
Frequently Asked Questions about Dr. Michael Portner, MD
Where does Dr. Michael Portner, MD practice?+
What is Dr. Michael Portner, MD's phone number?+
What does Dr. Michael Portner, MD specialize in?+
Is Dr. Michael Portner, MD board certified?+
How long has Dr. Michael Portner, MD been practicing?+
What is Dr. Michael Portner, MD's NPI number?+
Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards
See an error? info@pbcmmg.com
If this is your profile and you'd like it removed, request removal here.
Are you Michael Portner, MD?
Claim & complete your profile →Verify identity, upload proof, and update credentials. Approval typically 1-2 business days.