NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Chad Nicholas Stasik, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in San Antonio, TX · enumerated 2006.

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

National Provider Identifier

1164511200

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Chad Nicholas Stasik
Credential M.D.
Sex Male
Practice address 4330 Medical Dr Ste 325, San Antonio, TX, 78229
Phone (210) 615-7700
Enumeration date Oct 12, 2006
Last updated in NPPES Jan 28, 2022

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 2017007403 (MO) Secondary
208600000X Surgery Physician Allopathic & Osteopathic Physicians · License TRN8846 (FL) Secondary
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License 2017007403 (MO) Secondary
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Allopathic & Osteopathic Physicians · License N5416 (TX) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Chad Stasik?
Chad Stasik is registered in NPPES with the primary taxonomy of Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-28.