Doctor profile · Federal record

Dr. Stephen Chrzanowski, MD

Internal Medicine Physician (CMS: Internal Medicine) · West Seneca, NY

  • NPI 1013966647
  • Accepts Medicare
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
290 Center RD
West Seneca, NY 14224
(716) 675-0707
fax (716) 674-1836

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
November 23, 2010
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
New York #2100441

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1013966647. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
159
Distinct HCPCS
2
Medicare allowed
$12,326
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 143 68 $77
99238 Hospital discharge day management, 30 minutes or less 16 16 $79

In context: peer comparison

Among 8 peers in West Seneca Internal Medicine Physician, average services per provider: 52. This provider delivers 3.1× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Stephen Chrzanowski's medical specialty?
Dr. Stephen Chrzanowski practices Internal Medicine Physician in West Seneca, NY.
Where does Dr. Stephen Chrzanowski practice?
Dr. Stephen Chrzanowski practices at 290 Center RD, West Seneca, NY 14224. Office phone: 7166750707.
What is Dr. Stephen Chrzanowski's NPI?
Dr. Stephen Chrzanowski's National Provider Identifier (NPI) is 1013966647, issued by NPPES.
Does Dr. Stephen Chrzanowski accept Medicare assignment?
Yes. Dr. Stephen Chrzanowski accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Stephen Chrzanowski commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.