Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JEFFREY LESSER DO
NPI 1023710522
Internal Medicine in Buffalo, NY

Active since March 20, 2023PECOS Enrolled
100 HIGH ST, BUFFALO, NY 14203(716) 859-5600 Get Directions Write a Review

NPPES record last updated: July 28, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 28, 2026, Dec 23, 2024, Mar 22, 2023 (3 updates tracked since 2023).

About Jeffrey Lesser Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JEFFREY LESSER DO (NPI 1023710522) is an individual internal medicine provider in Buffalo, New York, licensed in New York (340551) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS and maintains a secondary practice location in Williamsville.

NPPES Registry Identity

NPI1023710522
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameJEFFREY LESSERCredential: DO
Location Address100 HIGH STBuffalo, NY 14203-1126
Mailing Address726 Exchange St Ste 710Buffalo, NY 14210-1464 · (716) 852-4772
Sole ProprietorNo
Enumeration DateMarch 20, 2023
Last NPPES UpdateJuly 28, 20263 updates tracked since enumeration
NPPES CertifiedJuly 28, 2026
NPI 1023710522 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in NY · 340551 Licensed in TX · V4141
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
100 HIGH ST, Buffalo, NY 14203

Secondary Practice Location 1

Location 11540 Maple RdWilliamsville, NY 14221-3647 · Phone (716) 568-3600

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Jeffrey Lesser Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 14203 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.87 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
100 HIGH ST
BUFFALO, NY 14203
Specialist
100 HIGH ST, RM C421
BUFFALO, NY 14203
Student in an Organized Health Care Education/Training Program
100 HIGH ST
BUFFALO, NY 14203
Hospitalist
100 HIGH ST
BUFFALO, NY 14203
Student in an Organized Health Care Education/Training Program
100 HIGH ST
BUFFALO, NY 14203
Student in an Organized Health Care Education/Training Program
100 HIGH ST
BUFFALO, NY 14203
Emergency Medicine
100 HIGH ST
BUFFALO, NY 14203
Registered Nurse (Registered Nurse First Assistant)
100 HIGH ST
BUFFALO, NY 14203

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Jeffrey Lesser's NPI number?

The NPI number for Jeffrey Lesser is 1023710522. It was assigned to this individual provider in the NPPES registry on March 20, 2023.

Where is Jeffrey Lesser located?

Jeffrey Lesser practices at 100 High St, Buffalo, NY 14203. The listed phone number is (716) 859-5600.

What is Jeffrey Lesser's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Jeffrey Lesser enrolled in Medicare?

Yes. Jeffrey Lesser is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Jeffrey Lesser was last updated on July 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.