Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Mr. Tzvi Jonas, MD

Individual provider Internal Medicine Physician · NPI 1609197326

Mr. Tzvi Jonas, MD practises Internal Medicine in Worcester, Massachusetts. Graduated from Jefferson Medical College of Thomas Jefferson University in 2010, 16 years ago. Practices with Murray Jonas MD, PLLC, a 2-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
16
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
MA
In the registry since
2010
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

119 Belmont St
Worcester, MA 01605-2903 Not confirmed with CMS for 13 years — call before visiting
Phone: (508) 334-8515
Fax: (508) 334-6490
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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 256968 (MA)

Record details

NPI number1609197326
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 16, 2010
Last updated in NPPESJuly 11, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 2010 (16 years in practice)
Group practice Murray Jonas M.D., P.L.L.C. — 2 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients207
Services billed 1,769 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Murray Jonas MD, PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Worcester