Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Sheng Fong Lou, MD

General Practice Physician in Hato Rey, PR · enumerated 2021.

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

National Provider Identifier

1851973499

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Registry record

Entity type Individual (Type 1)

Name Sheng Fong Lou

Credential MD

Sex Male

Practice address Hato Rey, PR, 00917

Phone (787) 758-2000

Enumeration date Apr 23, 2021

Last updated in NPPES Oct 26, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 23492 (PR) 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

Is NPI 1851973499 active?

Yes, as of the latest NPPES snapshot, NPI 1851973499 is active (record last updated 2023-10-26).

How do I verify Sheng Fong Lou's NPI record?

Cross-check NPI 1851973499 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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Hospital Espanol Auxilio Mutuo De Puerto Rico, Inc. General Acute Care Hospital · San Juan, PR NPI 1265493001 Hospital Espanol Auxilio Mutuo De Puerto Rico, Inc. General Acute Care Hospital · San Juan, PR NPI 1669495701 Jose Ordein Pediatric Gastroenterology Physician · San Juan, PR NPI 1710024278 Hospital Espanol Auxilio Mutuo De Puerto Rico, Inc. Diagnostic Radiology Physician · San Juan, PR NPI 1215408927 Viviana Cotto Negron General Practice Physician · Hato Rey, PR NPI 1053985614 Jehnsen Carrasquillo General Practice Physician · Hato Rey, PR NPI 1639743214 Julissa Cirilo General Practice Physician · Hato Rey, PR NPI 1932773512 Nicole Agis-Ortiz General Practice Physician · Hato Rey, PR NPI 1356088611

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-26.