Jan Karczewski, MD

Addiction Medicine · Internal Medicine · Rheumatology

11+ years in practiceNPI: 1902291099Licensed in RI

About

Bio coming soon.

Are you Jan Karczewski, MD?

Claim your profile

Verify your identity, update your credentials, and take ownership of your listing on PBCMMG.

Claim Profile

Credentials & Recognition

Specialties

Addiction MedicineInternal MedicineRheumatology

NPI sub-specialties

Internal Medicine, Rheumatology207RR0500X

Practice Signals

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

Mid-Level (PA/NP) Use

Doctor-led visits

Years in Practice

11+ years

Estimated from NPI enumeration date

Featured in PBCMMG Rankings

#10

Top Rheumatologists in Rhode Island, 2026

Rheumatology · Rhode Island · 2026

Other Addiction Medicine Doctors near Rhode Island

View all →

Dr. Ankush Bansal, MD

Rhode Island, RI · Board cert · 21+ yrs

Dr. Ali Akhtar, MD

Rhode Island, RI · 21+ yrs

Dr. Laila Akhund, MD

Rhode Island, RI · 21+ yrs

Dr. Gregory Allen, DO

Rhode Island, RI · 21+ yrs

Dr. Rex Appenfeller, MD

Rhode Island, RI · 21+ yrs

Dr. John Audett, MD

Rhode Island, RI · 21+ yrs

Frequently Asked Questions about Dr. Jan Karczewski, MD

Where does Dr. Jan Karczewski, MD practice?+
Dr. Jan Karczewski, MD practices in Rhode Island, RI. 455 TOLL GATE RD ASP BUILDING SUITE PEACH WARWICK, RI 028862759.
What is Dr. Jan Karczewski, MD's phone number?+
Dr. Jan Karczewski, MD's practice phone is 401-681-2858. Office contact information is verified on the PBCMMG profile.
What does Dr. Jan Karczewski, MD specialize in?+
Dr. Jan Karczewski, MD's primary specialty is Addiction Medicine, with additional focus on Internal Medicine, Rheumatology.
Is Dr. Jan Karczewski, MD board certified?+
Board certification status for Dr. Jan Karczewski, 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. Jan Karczewski, MD been practicing?+
Dr. Jan Karczewski, MD has been in active practice for 11+ years, based on NPI enumeration and state licensing records.
What is Dr. Jan Karczewski, MD's NPI number?+
Dr. Jan Karczewski, MD's National Provider Identifier (NPI) is 1902291099, 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

See an error? info@pbcmmg.com

Are you Jan Karczewski, MD?

Claim & complete your profile →

Verify identity, upload proof, and update credentials. Approval typically 1-2 business days.