NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stanley P Sy, M.D.

Pulmonary Disease Physician in Brownsville, TX · enumerated 2006.

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

National Provider Identifier

1740231893

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Stanley P Sy
Credential M.D.
Sex Male
Practice address 844 Central Blvd, Suite 420, Brownsville, TX, 78520
Phone (956) 542-9900
Fax (956) 574-0003
Enumeration date May 13, 2006
Last updated in NPPES Jul 29, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License M0587 (TX) Secondary
207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License M0587 (TX) Secondary
207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License M0587 (TX) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
8V3285 Other TX BLUE CROSS BLUE SHIELD
177739304 Medicaid TX -
8V3450 Other TX BLUE CROSS BLUE SHIELD
177739305 Other TX MEDICAID CSN

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

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.
What specialty is Stanley Sy?
Stanley Sy is registered in NPPES with the primary taxonomy of Pulmonary Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-07-29.