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

Dr. Emmanuel During, MD

Individual provider Sleep Medicine (Internal Medicine) Physician · NPI 1104110212

Dr. Emmanuel During, MD practises Neurology in New York, New York. Qualified in 2003, 23 years ago. Practices with Icahn School of Medicine at Mount Sinai, a 2,791-clinician group, works from 4 locations, accepts Medicare assignment and offers telehealth. Licensed in Arizona, California and New York.

Years since qualifying
23
Licensed in
AZ, CA, NY
In the registry since
2011
Specialties on file
4
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

10 Union Sq E
New York, NY 10003-3314
Phone: (212) 420-2377
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 300 Pasteur Dr, Stanford, CA 94305-2200 — (650) 723-4000
  • 5 E 98th St, New York, NY 10029-6501 — (212) 241-5656
  • 1 Gustave L Levy Pl, New York, NY 10029-6504 — (212) 241-5656

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 316629 (NY)
Sleep Medicine (Internal Medicine) Physician Taxonomy 207RS0012X · Licence 316629 (NY)
Psychiatry Physician Taxonomy 2084P0800X · Licence A131016 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence R72835 (AZ)

Record details

NPI number1104110212
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 6, 2011
Last updated in NPPESJuly 13, 2022
Certification dateJune 28, 2022

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Also practisesSLEEP MEDICINE
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Icahn School Of Medicine At Mount Sinai — 2791 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients180
Services billed 678 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $135 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Icahn School of Medicine at Mount Sinai

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2791 clinicians in the practice; 12 are shown here.

Other providers in New York