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

Dr. Carlos Alberto Santiago Sanchez, MD

Surgical Oncology Physician in Toa Baja, PR · enumerated 2005.

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

National Provider Identifier

1588646681

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Registry record

Entity type Individual (Type 1)
Name Dr. Carlos Alberto Santiago Sanchez
Credential MD
Sex Male
Practice address Toa Baja, PR, 00949
Phone (787) 787-5706
Fax (787) 795-0952
Enumeration date Nov 16, 2005
Last updated in NPPES Dec 20, 2012

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

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 10298 (PR) Secondary
2086X0206X Surgical Oncology Physician Allopathic & Osteopathic Physicians · License 10298 (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.

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Frequently asked questions

Where does Carlos Santiago Sanchez practice?
The practice location on file with NPPES is in Toa Baja, PR. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Carlos Santiago Sanchez?
The National Provider Identifier (NPI) for Carlos Santiago Sanchez is 1588646681, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-12-20.