John Sia, MD
Internal Medicine
20+ years in practiceNPI: 1912958281Licensed in IL
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Credentials & Recognition
Specialties
Internal Medicine
NPI sub-specialties
Internal Medicine207R00000X
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. John Sia, MD
Where does Dr. John Sia, MD practice?+
Dr. John Sia, MD practices in Illinois, IL.
What is Dr. John Sia, MD's phone number?+
Dr. John Sia, MD's practice phone is 847-208-7995. Office contact information is verified on the PBCMMG profile.
What does Dr. John Sia, MD specialize in?+
Dr. John Sia, MD's primary specialty is Internal Medicine.
Is Dr. John Sia, MD board certified?+
Board certification status for Dr. John Sia, 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 Sia, MD been practicing?+
Dr. John Sia, MD has been in active practice for 20+ years, based on NPI enumeration and state licensing records.
What is Dr. John Sia, MD's NPI number?+
Dr. John Sia, MD's National Provider Identifier (NPI) is 1912958281, 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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