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

Dr. Benjamin Zachary Wertheimer, MD

Individual provider Internal Medicine Physician · NPI 1487821385

Dr. Benjamin Zachary Wertheimer, MD is a Hospitalist in New York, New York. Graduated from Perelman School of Med at the University of Pennsylvania in 2006, 20 years ago. Practices with New York University, a 5,884-clinician group and accepts Medicare assignment. Licensed in Massachusetts and New York.

Years since qualifying
20
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
MA, NY
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

550 1st Ave Tch 1803
New York, NY 10016-6402
Phone: (646) 501-6939
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 252213-1 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 240558 (MA)

Record details

NPI number1487821385
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 12, 2008
Last updated in NPPESSeptember 2, 2022
Certification dateSeptember 2, 2022

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 2006 (20 years in practice)
Group practice New York University — 5884 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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 patients28
Services billed 71 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

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 New York University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 5884 clinicians in the practice; 12 are shown here.

Other providers in New York