Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Stephen Gerard Chrzanowski, MD

Individual provider Internal Medicine Physician · NPI 1013966647

Dr. Stephen Gerard Chrzanowski, MD is an Internal Medicine in West Seneca, New York. Graduated from New York Medical College in 1995, 31 years ago. Practices with Mercy Hospital of Buffalo, a 198-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
31
Trained at
New York Medical College
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

290 Center Rd
West Seneca, NY 14224
Phone: (716) 675-0707
Fax: (716) 674-1836
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2100441 (NY)

Record details

NPI number1013966647
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 10, 2006
Last updated in NPPESNovember 23, 2010

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1995 (31 years in practice)
Group practice Mercy Hospital Of Buffalo — 198 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in West Seneca