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

Dr. Ethan David Loeb, MD

Individual provider Internal Medicine Physician · NPI 1275727711

Dr. Ethan David Loeb, MD practises Internal Medicine in Roslyn Heights, New York. Graduated from Icahn School of Medicine at Mount Sinai in 1996, 30 years ago. Practices with Icahn School of Medicine at Mount Sinai, a 2,791-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California and New York.

Years since qualifying
30
Trained at
Icahn School of Medicine at Mount Sinai
Licensed in
CA, NY
In the registry since
2007
Specialties on file
2
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

19 Sycamore Ln
Roslyn Heights, NY 11577-2521 Not confirmed with CMS for 19 years — call before visiting
Phone: (504) 606-7612
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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 232033-1 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence A63945 (CA)

Record details

NPI number1275727711
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 28, 2007
Last updated in NPPESAugust 28, 2007

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Graduated 1996 (30 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

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 patients16
Services billed 16 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

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 Roslyn Heights