Jonathan Koff, MD

Internal Medicine · Gastroenterology · Pulmonology

19+ years in practiceNPI: 1104040401Licensed in CALicensed in CT

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Credentials & Recognition

Specialties

Internal MedicineGastroenterologyPulmonology

NPI sub-specialties

Internal Medicine, Critical Care Medicine207RC0200X

Internal Medicine, Pulmonary Disease207RP1001X

Internal Medicine, Critical Care Medicine207RC0200X

Internal Medicine, Pulmonary Disease207RP1001X

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

6 reviews

Years in Practice

19+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#2

Top Internal Medicine Doctors in Connecticut, 2026

Internal Medicine · Connecticut · 2026

#21

Top Pulmonologists in Connecticut, 2026

Pulmonology · Connecticut · 2026

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Frequently Asked Questions about Dr. Jonathan Koff, MD

Where does Dr. Jonathan Koff, MD practice?+
Dr. Jonathan Koff, MD practices in Maryland, MD. 789 HOWARD AVE NEW HAVEN, CT 065191304.
What is Dr. Jonathan Koff, MD's phone number?+
Dr. Jonathan Koff, MD's practice phone is 203-785-4198. Office contact information is verified on the PBCMMG profile.
What does Dr. Jonathan Koff, MD specialize in?+
Dr. Jonathan Koff, MD's primary specialty is Internal Medicine, with additional focus on Gastroenterology, Pulmonology.
Is Dr. Jonathan Koff, MD board certified?+
Board certification status for Dr. Jonathan Koff, 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. Jonathan Koff, MD been practicing?+
Dr. Jonathan Koff, MD has been in active practice for 19+ years, based on NPI enumeration and state licensing records.
What is Dr. Jonathan Koff, MD's NPI number?+
Dr. Jonathan Koff, MD's National Provider Identifier (NPI) is 1104040401, 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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