William Hennessy, MD

Dermatology · Urology

21+ years in practiceNPI: 1114922309Licensed in CT

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Credentials & Recognition

Specialties

DermatologyUrology

NPI sub-specialties

Urology208800000X

Practice Signals

Editorial signals beyond credentials. Patient transparency over opacity. See methodology.

Mid-Level (PA/NP) Use

Doctor-led visits

Google Reviews

5.0 / 5.0

112 reviews

Years in Practice

21+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#52

Top Urologists in Connecticut, 2026

Urology · Connecticut · 2026

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Frequently Asked Questions about Dr. William Hennessy, MD

Where does Dr. William Hennessy, MD practice?+
Dr. William Hennessy, MD practices in California, CA. 51-53 KENOSIA AVE DANBURY, CT 068104015.
What is Dr. William Hennessy, MD's phone number?+
Dr. William Hennessy, MD's practice phone is 203-748-0330. Office contact information is verified on the PBCMMG profile.
What does Dr. William Hennessy, MD specialize in?+
Dr. William Hennessy, MD's primary specialty is Dermatology, with additional focus on Urology.
Is Dr. William Hennessy, MD board certified?+
Board certification status for Dr. William Hennessy, 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 Hennessy, MD been practicing?+
Dr. William Hennessy, MD has been in active practice for 21+ years, based on NPI enumeration and state licensing records.
What is Dr. William Hennessy, MD's NPI number?+
Dr. William Hennessy, MD's National Provider Identifier (NPI) is 1114922309, 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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