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

Simon A. Sidelnik, MD

Individual provider Psychiatry Physician · NPI 1538423900

Simon A. Sidelnik, MD practises Psychiatry in New York, New York. Graduated from Tufts University School of Medicine in 2012, 14 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
14
Trained at
Tufts University School of Medicine
Licensed in
MA, NY
In the registry since
2012
Specialties on file
3
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

550 First Avenue NYU Langone Medical Ctr
New York, NY 10016
Phone: (212) 263-5506
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 282981 (NY)
Psychiatry Physician Taxonomy 2084P0800X · Licence L-251357 (MA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1538423900
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 29, 2012
Last updated in NPPESApril 1, 2021
Certification dateApril 1, 2021

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2012 (14 years in practice)
Group practice New York University — 5884 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 patients27
Services billed 97 a service is one billed item, such as a visit, a test or a procedure
Average patient age59

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