Dr. Arnaldo Santiago MD
About this NPIWhat this record shows.
NPI 1891657045 is registered to Dr. Arnaldo Santiago MD, a Medical Toxicology (Preventive Medicine) Physician practising at Po Box 2344 in Salinas, Puerto Rico. Medical Toxicology (Preventive Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Arnaldo Santiago MD has been enumerated in the National Provider Identifier (NPI) registry since 2025.
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Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Arnaldo Santiago MD accepts. To confirm in-network status with your specific health plan, contact Dr. Arnaldo Santiago MD directly at (939) 940-5684.
Frequently asked
Yes. NPI 1891657045 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Medical Toxicology (Preventive Medicine) Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (939) 940-5684.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. Arnaldo Santiago MD is a Type-1 individual NPI.