David Guan, MD

Addiction Medicine · Internal Medicine · Pulmonology · Sleep Medicine

21+ years in practiceNPI: 1891772208Licensed in GALicensed in WILicensed in NHLicensed in TN

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Credentials & Recognition

Specialties

Addiction MedicineInternal MedicinePulmonologySleep Medicine

NPI sub-specialties

Internal Medicine, Critical Care Medicine207RC0200X

Internal Medicine, Critical Care Medicine207RC0200X

Internal Medicine, Pulmonary Disease207RP1001X

Internal Medicine, Pulmonary Disease207RP1001X

Internal Medicine, Sleep Medicine207RS0012X

Internal Medicine, Pulmonary Disease207RP1001X

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

Featured in PBCMMG Rankings

#12

Top Sleep Medicine Doctors in New Hampshire, 2026

Sleep Medicine · New Hampshire · 2026

#24

Top Pulmonologists in New Hampshire, 2026

Pulmonology · New Hampshire · 2026

#35

Top Sleep Medicine Doctors in Tennessee, 2026

Sleep Medicine · Tennessee · 2026

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Frequently Asked Questions about Dr. David Guan, MD

Where does Dr. David Guan, MD practice?+
Dr. David Guan, MD practices in Georgia, GA. 1814 MCCALLIE AVE CHATTANOOGA, TN 374043025.
What is Dr. David Guan, MD's phone number?+
Dr. David Guan, MD's practice phone is 423-208-9030. Office contact information is verified on the PBCMMG profile.
What does Dr. David Guan, MD specialize in?+
Dr. David Guan, MD's primary specialty is Addiction Medicine, with additional focus on Internal Medicine, Pulmonology, Sleep Medicine.
Is Dr. David Guan, MD board certified?+
Board certification status for Dr. David Guan, 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. David Guan, MD been practicing?+
Dr. David Guan, MD has been in active practice for 21+ years, based on NPI enumeration and state licensing records.
What is Dr. David Guan, MD's NPI number?+
Dr. David Guan, MD's National Provider Identifier (NPI) is 1891772208, 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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