Active NPI
Arnaldo Jose Santiago, MD
- Medical Toxicology (Preventive Medicine) Physician
- Salinas, PR
National Provider Identifier
1891657045
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Medical Toxicology (Preventive Medicine) Physician
- License
- 17352I
- Practice address
- PO Box 2344
Salinas, PR 00751-8344 - Phone
- (939) 940-5684
- NPI assigned
- Nov 25, 2025
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Medical Toxicology (Preventive Medicine) Physician | 2083T0002X | 17352I | PR | Primary |
Addresses
Primary practice location
PO Box 2344
Salinas, PR 00751-8344
Mailing address
PO Box 2344
Salinas, PR 00751-8344
Phone (939) 940-5684
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 17352I | PR | MD | Medical Toxicology (Preventive Medicine) Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1764028800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1764028800000",
"number": "1891657045",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 2344",
"city": "SALINAS",
"state": "PR",
"postal_code": "007518344",
"telephone_number": "939-940-5684"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "PO BOX 2344",
"city": "SALINAS",
"state": "PR",
"postal_code": "007518344",
"telephone_number": "939-940-5684"
}
],
"practiceLocations": [],
"basic": {
"last_name": "SANTIAGO",
"first_name": "ARNALDO",
"middle_name": "JOSE",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2025-11-25",
"last_updated": "2025-11-25",
"certification_date": "2025-11-25",
"status": "A"
},
"taxonomies": [
{
"code": "2083T0002X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Preventive Medicine, Medical Toxicology",
"state": "PR",
"license": "17352I",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Salinas, PR
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 25, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.