Individual provider Active NPI

Cristina Marie Casas Loyola

  • Endocrinology, Diabetes & Metabolism Physician
  • San Juan, PR
National Provider Identifier
1427519164
Registry record updated Sep 17, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Endocrinology, Diabetes & Metabolism PhysicianTaxonomy code 207RE0101X
License
022904 Issued in PR
Practice address
200 Calle Cupey GDNS Ste 11W
San Juan, PR 00926-7366
Phone
(787) 526-9798
NPI assigned
Mar 26, 2019
Last updated
Sep 17, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 17, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 22904 PR
Endocrinology, Diabetes & Metabolism Physician 207RE0101X 022904 PR Primary
General Practice Physician 208D00000X 15571I PR

Addresses

Primary practice location

200 Calle Cupey GDNS Ste 11W
San Juan, PR 00926-7366

Mailing address

200 Calle Cupey GDNS Ste 11W
San Juan, PR 00926-7366
Phone (787) 526-9798

Other identifiers 1

IdentifierTypeStateIssuer
6048757OtherPRDRIVERS LICENSE

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in PR
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20260427001892 PR Practitioner - EndocrinologyPractitioner - Internal Medicine 9133664873 Reassigns benefits to 1 organization
Practice locations: Guaynabo, PR

Care Compare profile

Medicare Care Compare
Specialty
Endocrinology
Education
San Juan Bautista School of Medicine, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

101 Ave San Patricio
Suite 1090
Guaynabo, PR 00968-3047
Phone (787) 310-2505

17 -13 Calle
Suite 10
Bayamon, PR 00959-6605

2703 Calle El Monte
Suite 111
Ponce, PR 00716

Urb Riverside Park Calle 7
F21
Bayamon, PR 00961

Urb Santa Rosa
17 13 Calle10
Bayamon, PR 00959-6605

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled

State licenses

LicenseStateTypeSpecialty
22904PRMDInternal Medicine Physician
022904PRMDEndocrinology, Diabetes & Metabolism Physician
15571IPRMDGeneral Practice Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Advanced Endocare LLC Endocrinology, Diabetes & Metabolism Current Accepting new patients

Locations

101 Ave San Patricio
Ste 1090
Guaynabo, PR 00968
Phone (787) 414-8777

Organizations & group practices 1

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1553558400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789603200000",
    "number": "1427519164",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "200 CALLE CUPEY GDNS STE 11W",
            "city": "SAN JUAN",
            "state": "PR",
            "postal_code": "009267366",
            "telephone_number": "787-526-9798"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 CALLE CUPEY GDNS STE 11W",
            "city": "SAN JUAN",
            "state": "PR",
            "postal_code": "009267366",
            "telephone_number": "787-526-9798"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CASAS LOYOLA",
        "first_name": "CRISTINA",
        "middle_name": "MARIE",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-03-26",
        "last_updated": "2026-09-17",
        "certification_date": "2026-09-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PR",
            "license": "22904",
            "primary": false
        },
        {
            "code": "207RE0101X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Endocrinology, Diabetes & Metabolism",
            "state": "PR",
            "license": "022904",
            "primary": true
        },
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "PR",
            "license": "15571I",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "DRIVERS LICENSE",
            "identifier": "6048757",
            "state": "PR"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in San Juan, PR

Sources for this page

Verify at the official NPI Registry.