John Gelzhiser, MD
Addiction Medicine · Internal Medicine
19+ years in practiceNPI: 1013100759Licensed in RI
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Credentials & Recognition
Specialties
Practice Signals
Editorial signals beyond credentials. Patient transparency over opacity. See methodology.
Mid-Level (PA/NP) Use
Doctor-led visits
Years in Practice
19+ years
Estimated from NPI enumeration date
Other Addiction Medicine Doctors near Rhode Island
View all →Frequently Asked Questions about Dr. John Gelzhiser, MD
Where does Dr. John Gelzhiser, MD practice?+
Dr. John Gelzhiser, MD practices in Rhode Island, RI. 455 TOLL GATE RD
WARWICK, RI 028862759.
What is Dr. John Gelzhiser, MD's phone number?+
Dr. John Gelzhiser, MD's practice phone is 401-737-7000. Office contact information is verified on the PBCMMG profile.
What does Dr. John Gelzhiser, MD specialize in?+
Dr. John Gelzhiser, MD's primary specialty is Addiction Medicine, with additional focus on Internal Medicine.
Is Dr. John Gelzhiser, MD board certified?+
Board certification status for Dr. John Gelzhiser, MD has not been verified in the data sources PBCMMG uses (ABMS, state medical boards). The PBCMMG profile shows their current credential set.
How long has Dr. John Gelzhiser, MD been practicing?+
Dr. John Gelzhiser, MD has been in active practice for 19+ years, based on NPI enumeration and state licensing records.
What is Dr. John Gelzhiser, MD's NPI number?+
Dr. John Gelzhiser, MD's National Provider Identifier (NPI) is 1013100759, registered in the federal NPPES registry.
Profile maintained by Palm Beach County Medical Media Group, Inc. | Data verified from public registries (NPPES, ABMS, state medical boards). Methodology · Editorial Standards
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