William Grehan, MD
20+ years in practiceNPI: 1417961061Licensed in ILLicensed in SC
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Credentials & Recognition
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. William Grehan, MD
Where does Dr. William Grehan, MD practice?+
Dr. William Grehan, MD practices in Illinois, IL. 701 W NORTH AVE
MELROSE PARK, IL 601601612.
What is Dr. William Grehan, MD's phone number?+
Dr. William Grehan, MD's practice phone is 708-681-3202. Office contact information is verified on the PBCMMG profile.
Is Dr. William Grehan, MD board certified?+
Board certification status for Dr. William Grehan, 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 Grehan, MD been practicing?+
Dr. William Grehan, MD has been in active practice for 20+ years, based on NPI enumeration and state licensing records.
What is Dr. William Grehan, MD's NPI number?+
Dr. William Grehan, MD's National Provider Identifier (NPI) is 1417961061, 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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