Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Jonathan Brian Lis, MD

Individual provider Internal Medicine Physician · NPI 1528558939

Dr. Jonathan Brian Lis, MD is an Internal Medicine in Waterbury, Connecticut. Graduated from University of Connecticut School of Medicine in 2018, 8 years ago. Practices with Altorelli Health LLC, a 3-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
8
Trained at
University of Connecticut School of Medicine
Licensed in
CT
In the registry since
2018
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

140 Grandview Ave Ste L04
Waterbury, CT 06708-2518
Phone: (860) 868-8932
Fax: (860) 868-7310
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 67341 (CT)

Record details

NPI number1528558939
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 11, 2018
Last updated in NPPESFebruary 28, 2025
Certification dateFebruary 28, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF CONNECTICUT SCHOOL OF MEDICINE
Graduated 2018 (8 years in practice)
Group practice Altorelli Health Llc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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