William Kassler, MD
Addiction Medicine · Internal Medicine
21+ years in practiceNPI: 1538162672Licensed in NH
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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
21+ years
Estimated from NPI enumeration date
Other Addiction Medicine Doctors near New Hampshire
View all →Frequently Asked Questions about Dr. William Kassler, MD
Where does Dr. William Kassler, MD practice?+
Dr. William Kassler, MD practices in New Hampshire, NH. 1415 ELM ST
MANCHESTER, NH 031011325.
What is Dr. William Kassler, MD's phone number?+
Dr. William Kassler, MD's practice phone is 603-626-9500. Office contact information is verified on the PBCMMG profile.
What does Dr. William Kassler, MD specialize in?+
Dr. William Kassler, MD's primary specialty is Addiction Medicine, with additional focus on Internal Medicine.
Is Dr. William Kassler, MD board certified?+
Board certification status for Dr. William Kassler, 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. William Kassler, MD been practicing?+
Dr. William Kassler, MD has been in active practice for 21+ years, based on NPI enumeration and state licensing records.
What is Dr. William Kassler, MD's NPI number?+
Dr. William Kassler, MD's National Provider Identifier (NPI) is 1538162672, 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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