National Provider Identifier

Marcus S Dempster, MD

Marcus S Dempster, MD is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician in Williamsville, NY and a listed phone number of (716) 634-3340.

NPI 1881223519Williamsville, NYHematology & Oncology Physician

Source: public NPPES record, last updated June 02, 2026. This profile is informational and is not medical advice, a quality rating, or a provider recommendation.

Profile Overview

NPI
1881223519
Provider Type
Individual
Primary Specialty
Hematology & Oncology Physician
Enumeration Date
April 04, 2020
Last Updated
June 02, 2026

Practice Location

  • 199 Park Club Ln Ste 200
  • Williamsville, NY 14221-5269

Phone: (716) 634-3340

Mailing Address

  • 199 Park Club Ln Ste 500
  • Williamsville, NY 14221-5269

Specialties

  • Hematology & Oncology Physician (207RH0003X)

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Biography

Marcus Dempster, MD, is a hematology and medical oncology fellow at Roswell Park Comprehensive Cancer Center, where he serves as Chief Administrative Fellow for the class of 2026. He earned his MD from Wright State University Boonshoft School of Medicine, completed an internal medicine residency at Cleveland Clinic, and is board certified by the American Board of Internal Medicine. His stated clinical and research interests include solid tumor oncology and leukemia.

Related Providers

These published providers share the same primary specialty and city. This is a directory relationship, not a recommendation or verified affiliation.

Full Record
NPI
1881223519
Entity Type
Individual
Last Name
Dempster
First Name
Marcus
Middle Name
S
Name Prefix
Dr.
Credential
MD
Mailing Street Address
199 Park Club Ln Ste 500
Mailing City
Williamsville
Mailing State
NY
Mailing ZIP Code
14221-5269
Mailing Country
US
Mailing Phone
(716) 845-1300
Mailing Fax
(716) 322-3372
Practice Street Address
199 Park Club Ln Ste 200
Practice City
Williamsville
Practice State
NY
Practice ZIP Code
14221-5269
Practice Country
US
Practice Phone
(716) 634-3340
Practice Fax
(716) 634-3350
Enumeration Date
April 04, 2020
Last Updated
June 02, 2026
Sex
Male
Sole Proprietor
Yes
Certification Date
June 02, 2026
Taxonomies
Hematology & Oncology Physician (207RH0003X)
Other Identifiers
07964107 (NY)