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

Dr. Ronald Lis, MD

Individual provider Internal Medicine Physician · NPI 1205987021

Dr. Ronald Lis, MD is an Internal Medicine in Paterson, New Jersey. Graduated from Rowan University School of Osteopathic Medicine in 1984, 42 years ago. Practices with St Josephs Medical Group PC, a 226-clinician group and accepts Medicare assignment. Licensed in New Jersey and New York.

Years since qualifying
42
Trained at
Rowan University School of Osteopathic Medicine
Licensed in
NJ, NY
In the registry since
2007
Specialties on file
7
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Partly verified

Some contact details are missing from the federal record.

Saint Joseph's Hospital 703 Main St
Paterson, NJ 07503
Phone: (973) 754-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 25MA05320300 (NJ)
Internal Medicine Physician Taxonomy 207R00000X · Licence 165062 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 25MA05320300 (NJ)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 165062 (NY)
Hospice and Palliative Medicine (Internal Medicine) Physician Taxonomy 207RH0002X · Licence 25MA05320300 (NJ)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 165062 (NY)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 25MA05320300 (NJ)

Record details

NPI number1205987021
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 16, 2007
Last updated in NPPESApril 1, 2025
Certification dateMarch 31, 2025
Mailing address175 Gramercy Pl, Glen Rock, NJ 07452-2309

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolROWAN UNIVERSITY SCHOOL OF OSTEOPATHIC MEDICINE
Graduated 1984 (42 years in practice)
Group practice St Josephs Medical Group Pc — 226 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Paterson