NPPES file of Aug 9, 2026

Ethan David Loeb, M.D.

Internal Medicine Physician · Roslyn Heights, NY

Ethan David Loeb, M.D. is an internal medicine physician with a practice address in Roslyn Heights, New York, and NPI 1275727711, issued on Aug 28, 2007. Check the license (New York 232033-1, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1275727711
Name
Ethan David Loeb
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
232033-1 NY
A63945 CA
Self-reported in NPPES; status is on the state search
Practice location
19 Sycamore LN, Roslyn Heights, NY 11577
Phone
(504) 606-7612
Enumerated
Aug 28, 2007
Record last updated
Aug 28, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20110215001188); accepts Medicare assignment
Medical or professional school
Icahn School Of Medicine At Mount Sinai, 1996
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Ethan David Loeb in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 232033-1
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the New York license search

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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

23 Medicare Part D claims for 13 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Ethan Loeb23
  2. Specialty average3,176

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Icahn School OF Medicine AT Mount SinaiNew York, NY

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ethan David Loeb among 12,067 internal medicine physician records in New York

Ethan David Loeb, M.D. is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.

  • NPI issued2007 · 47% of these records are older, 44% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1996 · median 2002 among the 7,221 with a school on file
  • Record last updated2007 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

14 internal medicine physician records list a practice address in Roslyn Heights

They are 14 of the 398 NPPES records with a practice address in Roslyn Heights, and 12,067 internal medicine physician records in New York.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Prachi Dharia, MDRoslyn Heights, NY 115771710145404
  2. Lilia Idanan, MDRoslyn Heights, NY 115771871503946
  3. Marisa Ip, M.D.Roslyn Heights, NY 115771710286448
  4. Daniel Kassan, M.D.Roslyn Heights, NY 115771174623748
  5. Joel Laxer, MDRoslyn Hgts, NY 115771447216494
  6. Helen Marks, M.D.Roslyn Heights, NY 115771073774261
  7. Milton Masur, MDRoslyn Hgts, NY 115771174572713
  8. Anitha Mathew-Shaji, D.O.Roslyn Heights, NY 115771003049867

Common questions

What is Ethan David Loeb, M.D.'s NPI number?

Ethan David Loeb, M.D.'s National Provider Identifier (NPI) is 1275727711, issued on Aug 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Ethan David Loeb, M.D. located?

The NPPES record lists a practice address at 19 Sycamore LN, Roslyn Heights, NY, 11577. Phone: (504) 606-7612. Providers update this record themselves, so call before visiting.

How can I verify Ethan David Loeb, M.D.'s license?

NPPES lists New York license number 232033-1, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Ethan David Loeb, M.D. prescribe under Medicare Part D?

In 2024, Ethan David Loeb, M.D. had 23 Medicare Part D claims for 13 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.