Jeffrey Lesser, DO
Internal Medicine Physician · Buffalo, NY
Jeffrey Lesser, DO is an internal medicine physician with a practice address in Buffalo, New York, and NPI 1023710522, issued on Mar 20, 2023. Check the license (New York 340551, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Lesser
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 340551 NY
V4141 TX
Self-reported in NPPES; status is on the state search - Practice location
- 100 High St, Buffalo, NY 14203
- Phone
- (716) 859-5600
- Enumerated
- Mar 20, 2023
- Record last updated
- Jul 28, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 100 High St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jamie Abbott, PHD, MSGenetic Counselor (M.S.)1093411522
- Amr Abd El-Radi, MDInternal Medicine Physician1124681614
- Mohamed Abdel-Aal Ahmed, M.D.Cardiovascular Disease Physician1164834776
- Jonah Abdo-Suarez, PHARMACISTPharmacist1164259826
- Samira Abdulkadir, PA-CPhysician Assistant1376344721
- Omar Abialmouna, MDRheumatology Physician1518527092
Verify Jeffrey Lesser in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 340551Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
30 Medicare Part D claims for 15 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Jeffrey Lesser among 12,067 internal medicine physician records in New York
Jeffrey Lesser, DO 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 2023, is newer than 96% of them.
- NPI issued2023 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2026 · 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).
293 internal medicine physician records list a practice address in Buffalo
They are 293 of the 13,287 NPPES records with a practice address in Buffalo, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Buffalo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nicholas Aquino, M.DBuffalo, NY 142031710941521
- Octavia Balan, MDBuffalo, NY 142031649236134
- Walter Balon, M.D.Buffalo, NY 142031538148804
- Reena Bose, M.D.Buffalo, NY 142031003860438
- Manju Ceylony, MDBuffalo, NY 142031831137298
- Richard Charles, M.D.Buffalo, NY 142031588629216
- Donald Miller, MDBuffalo, NY 142031225096282
- Matthew O Brien, MDBuffalo, NY 142031972551430
Common questions
What is Jeffrey Lesser, DO's NPI number?
Jeffrey Lesser, DO's National Provider Identifier (NPI) is 1023710522, issued on Mar 20, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Lesser, DO located?
The NPPES record lists a practice address at 100 High St, Buffalo, NY, 14203. Phone: (716) 859-5600. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Lesser, DO's license?
NPPES lists New York license number 340551, 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 Jeffrey Lesser, DO prescribe under Medicare Part D?
In 2024, Jeffrey Lesser, DO had 30 Medicare Part D claims for 15 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.