Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jack Zakrzewski, MD
Surgery Physician in Aurora, CO · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1265061295
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Registry record
Entity type Individual (Type 1)
Name Jack Zakrzewski
Credential MD
Sex Male
Practice address 12631 E 17th Ave Rm 6111, Aurora, CO, 80045
Phone (303) 724-2750
Enumeration date Apr 2, 2020
Last updated in NPPES Apr 21, 2022
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Is NPI 1265061295 active?
Yes, as of the latest NPPES snapshot, NPI 1265061295 is active (record last updated 2022-04-21).
How do I verify Jack Zakrzewski's NPI record?
Cross-check NPI 1265061295 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Alejandro Suarez Pierre Student in an Organized Health Care Education/Training Program · Aurora, CO NPI 1821557927 Benjamin Ramser Student in an Organized Health Care Education/Training Program · Aurora, CO NPI 1518543347 Yuki Fujiwara Student in an Organized Health Care Education/Training Program · Aurora, CO NPI 1255074092 Jakob Durden Student in an Organized Health Care Education/Training Program · Aurora, CO NPI 1841933645 Caleb Edwards Student in an Organized Health Care Education/Training Program · Aurora, CO NPI 1790428548 Ioannis Ziogas Student in an Organized Health Care Education/Training Program · Aurora, CO NPI 1447993167 Jerry Yang Student in an Organized Health Care Education/Training Program · Aurora, CO NPI 1457094013 Claire Caplan Student in an Organized Health Care Education/Training Program · Aurora, CO NPI 1306580303
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-21.