Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Nath Chongsuwat, M.D.

Hospitalist Physician in Weston, WI · enumerated 2015.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1225416829

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Registry record

Entity type Individual (Type 1)

Name Nath Chongsuwat

Credential M.D.

Sex Male

Practice address 3400 Ministry Pkwy, Weston, WI, 54476

Phone (715) 358-1000

Enumeration date May 14, 2015

Last updated in NPPES Apr 17, 2026

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 471-320 (WI) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 84301 (WI) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 471 (WI) Primary

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.

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Frequently asked questions

Is NPI 1225416829 active?

Yes, as of the latest NPPES snapshot, NPI 1225416829 is active (record last updated 2026-04-17).

How do I verify Nath Chongsuwat's NPI record?

Cross-check NPI 1225416829 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Awad El-Magbri Nephrology Physician · Weston, WI NPI 1740281153 Nicolaus Schermer Certified Registered Nurse Anesthetist · Weston, WI NPI 1730175480 Kshamata Shalini Internal Medicine Physician · Weston, WI NPI 1023099306 Srinivas Kolla Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Weston, WI NPI 1235100397 Holly Worzalla Speech-Language Pathologist · Weston, WI NPI 1467420497 David White Anesthesiology Physician · Weston, WI NPI 1841259751 Gregory Gilles Anesthesiology Physician · Weston, WI NPI 1376500082 Victoria Burger Certified Registered Nurse Anesthetist · Weston, WI NPI 1811940257

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-17.