Individual provider Active NPI

Adriana I Marzan Loyola, MD

  • Gastroenterology Physician
  • Manati, PR
National Provider Identifier
1235591579
Registry record updated Feb 27, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Gastroenterology PhysicianTaxonomy code 207RG0100X
License
21301 Issued in PR
Practice address
200 Calle Hernandez Carrion
Manati, PR 00674-4652
Phone
(787) 237-3480
NPI assigned
Mar 25, 2016
Last updated
Feb 27, 2023By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Feb 27, 2023

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 21301 PR
Gastroenterology Physician 207RG0100X 21301 PR Primary

Addresses

Primary practice location

200 Calle Hernandez Carrion
Manati, PR 00674-4652

Mailing address

PO Box 4062
Guaynabo, PR 00970-4062
Phone (787) 237-3480

Other practice location 1

10 Calle Casia
San Juan, PR 00921-3200
Phone (787) 641-7582 ext. 12691

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
I20221102000476 PR Practitioner - Gastroenterology 2860869096 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Gastroenterology
Education
Other, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

B40 Calle Elliot Velez
Manati, PR 00674-4615
Phone (787) 237-3480

Procedures performed for Medicare patients

ProcedureNumber of procedures
Colonoscopy18
Upper gastrointestinal (GI) endoscopy for acid reflux1-10

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
21301PRMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Centro de Servicios Primarios de Salud Inc Single Specialty CurrentSince Jul 30, 2025 Accepting new patients
Centro de Servicios Primarios de Salud,Inc. Current Accepting new patients
Adriana Marzan Loyola LLC Single Specialty CurrentSince Sep 1, 2022 Accepting new patients
Centro de Servicios Primarios de Salud,Inc. CurrentSince Jul 30, 2025 Accepting new patients
Clinica de Gastroenterologia Dr. Rafael Perez Bartolomei CSP Single Specialty PastSince Sep 1, 2022 Accepting new patients

Locations

3 Calle Antonio Alcazar
Florida, PR 00650
Phone (787) 822-2170

B40 Calle Elliot Velez
Manati, PR 00674
Phone (787) 237-3480

Organizations & group practices 5

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": "1458864000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1677456000000",
    "number": "1235591579",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 4062",
            "city": "GUAYNABO",
            "state": "PR",
            "postal_code": "009704062",
            "telephone_number": "787-237-3480"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 CALLE HERNANDEZ CARRION",
            "city": "MANATI",
            "state": "PR",
            "postal_code": "006744652",
            "telephone_number": "787-237-3480"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "10 Calle Casia",
            "address_purpose": "LOCATION",
            "city": "San Juan",
            "state": "PR",
            "postal_code": "009213200",
            "country_code": "US",
            "telephone_number": "787-641-7582 x12691",
            "fax_number": "787-641-4561",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MARZAN LOYOLA",
        "first_name": "ADRIANA",
        "middle_name": "I",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2016-03-25",
        "last_updated": "2023-02-27",
        "certification_date": "2022-08-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PR",
            "license": "21301",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "PR",
            "license": "21301",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Manati, PR

Sources for this page

Verify at the official NPI Registry.