Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Dariusz Chrostowski, M.D.
Allergy Physician in Watertown, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1922100247
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Registry record
Entity type Individual (Type 1)
Name Dr. Dariusz Chrostowski
Credential M.D.
Sex Male
Practice address 19316 Us Route 11, Building IV, Suite C, Watertown, NY, 13601
Phone (315) 681-4192
Enumeration date Sep 5, 2006
Last updated in NPPES Mar 26, 2014
Taxonomy & licenses
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 1922100247 active?
Yes, as of the latest NPPES snapshot, NPI 1922100247 is active (record last updated 2014-03-26).
How do I verify Dariusz Chrostowski's NPI record?
Cross-check NPI 1922100247 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 → Nephrology Associates of Watertown PC Nephrology Physician · Watertown, NY NPI 1861432304 Advanced Asthma and Allergy of Nny, Pllc Allergy & Immunology Physician · Watertown, NY NPI 1760701783 Ehsoc Optometrist · Watertown, NY NPI 1801234083 Tiffany Vaughn Family Nurse Practitioner · Watertown, NY NPI 1750866810 Sameera Quraishi Nephrology Physician · Watertown, NY NPI 1881246387
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-26.