Organization Active NPI

B18 LLC

  • Nephrology Physician
  • Fajardo, PR
National Provider Identifier
1538972773
Registry record updated Jun 18, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Nephrology PhysicianTaxonomy code 207RN0300X
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

Updated by the provider on Jun 18, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Authorized official

Name
Dr. Giuliani T Oliveras Maldonado, MDNPI 1912560194
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)CodeLicenseStatePrimary
Nephrology PhysicianGroup: 193400000X SINGLE SPECIALTY GROUP 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 IDStateProvider typePAC IDDetails
O20250314002195 PR Part B Supplier - Clinic/Group Practice 1456873884 Receives reassigned benefits from 1 practitioner
Practice locations: Carolina, PR

National Provider Directory

National Provider Directory

Locations

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.

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.

Verify at the official NPI Registry.