Active NPI
B18 LLC
- Nephrology Physician
- Fajardo, PR
National Provider Identifier
1538972773
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Nephrology Physician
- Legal business name
- B18 LLC
- Practice address
- Caribbean Medical Building
Ave Osvaldo Molina Esquina Calle General Valero 375
Fajardo, PR 00738 - Phone
- (787) 705-8166
- NPI assigned
- Jan 30, 2025
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Dr. Giuliani T Oliveras Maldonado, MD
- Title
- Presidente
- Phone
- (787) 705-8166
Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Nephrology Physician | 207RN0300X | Primary |
Addresses
Primary practice location
Caribbean Medical Building
Ave Osvaldo Molina Esquina Calle General Valero 375
Fajardo, PR 00738
Mailing address
PO Box 362671
San Juan, PR 00936-2671
Phone (787) 705-8166
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in PR
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| O20250314002195 | PR | Part B Supplier - Clinic/Group Practice | 1456873884 |
Receives reassigned benefits from 1 practitioner Practice locations: Carolina, PR |
National Provider Directory
National Provider DirectoryLocations
MO1 Calle 413
Ste 201
Carolina, PR 00982
Phone (787) 765-6670
Practitioners & affiliated clinicians
Practitioners 1
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
-
- Nephrology Physician
- Fajardo, PR
- NPI 1912560194
Internal Medicine, PR
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1738195200000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1781740800000",
"number": "1538972773",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 362671",
"city": "SAN JUAN",
"state": "PR",
"postal_code": "009362671",
"telephone_number": "787-705-8166"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "CARIBBEAN MEDICAL BUILDING",
"address_2": "AVE OSVALDO MOLINA ESQUINA CALLE GENERAL VALERO 375",
"city": "FAJARDO",
"state": "PR",
"postal_code": "00738",
"telephone_number": "787-705-8166"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "B18 LLC",
"organizational_subpart": "NO",
"enumeration_date": "2025-01-30",
"last_updated": "2026-06-18",
"certification_date": "2026-06-18",
"status": "A",
"authorized_official_last_name": "OLIVERAS MALDONADO",
"authorized_official_first_name": "GIULIANI",
"authorized_official_middle_name": "T",
"authorized_official_title_or_position": "PRESIDENTE",
"authorized_official_telephone_number": "787-705-8166",
"authorized_official_name_prefix": "Dr.",
"authorized_official_credential": "MD"
},
"taxonomies": [
{
"code": "207RN0300X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Internal Medicine, Nephrology",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Fajardo, PR
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.