Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Alex Jan Xu
Urology Physician in New York, NY · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821652538
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Alex Jan Xu
Sex Male
Practice address 550 1st Ave, New York, NY, 10016
Phone (106) 819-9494
Enumeration date Apr 29, 2019
Last updated in NPPES Dec 4, 2025
Taxonomy & licenses
208800000X Urology Physician Allopathic & Osteopathic Physicians · License 25MA12876800 (NJ) Primary
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
How do I verify Alex Xu's NPI record?
Cross-check NPI 1821652538 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1821652538 active?
Yes, as of the latest NPPES snapshot, NPI 1821652538 is active (record last updated 2025-12-04).
Other providers at this practice address
Browse all → William Enlow Certified Registered Nurse Anesthetist · New York, NY NPI 1346242963 Susan Frost Certified Registered Nurse Anesthetist · New York, NY NPI 1518969146 Marc Kanchuger Anesthesiology Physician · New York, NY NPI 1245232610 Avrimin Kogan Anesthesiology Physician · New York, NY NPI 1215939699 Gunilla Samuelsson Certified Registered Nurse Anesthetist · New York, NY NPI 1134121619 Sheldon Deluty Anesthesiology Physician · New York, NY NPI 1871595314 Charles Fermon Anesthesiology Physician · New York, NY NPI 1043212590 Asuncion Albano Certified Registered Nurse Anesthetist · New York, NY NPI 1689676181
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-04.