Individual provider Active NPI

Iona Krystin Malinow-Maceo, M.D.

  • Pediatric Allergy/Immunology Physician
  • Bayamon, PR
National Provider Identifier
1821186875
Registry record updated Jul 5, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Allergy/Immunology PhysicianTaxonomy code 2080P0201X
License
13007 Issued in PR
Practice address
1845 Carr 2 Ste 609
Bayamon, PR 00959-7204
Phone
(787) 234-1536
Fax
(787) 474-5422
NPI assigned
Oct 11, 2006
Last updated
Jul 5, 2026By the provider in NPPES
Sex
Female
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 5, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Allergy/Immunology Physician 2080P0201X 13007 PR Primary

Addresses

Primary practice location

1845 Carr 2 Ste 609
Bayamon, PR 00959-7204

Mailing address

F1-8 Calle D
Mansiones de Villanova
San Juan, PR 00926-6435
Phone (787) 731-5346

Other practice location 1

715 Ave Ponce De Leon
Hato Rey, PR 00917-5032
Phone (787) 771-7999

Other practice location 2

PO Box 6660
Caguas, PR 00726-6660
Phone (787) 653-0550

Other practice location 3

PO Box 365067
San Juan, PR 00936-5067
Phone (787) 758-2525 ext. 1821

Other practice location 4

PO Box 1142
Manati, PR 00674-1142
Phone (787) 621-3270

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

LicenseStateTypeSpecialty
13007PRMDPediatrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Roosevelt Pediatric Group Pediatrics Past Accepting new patients

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": "1160524800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783209600000",
    "number": "1821186875",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "F1-8 CALLE D",
            "address_2": "MANSIONES DE VILLANOVA",
            "city": "SAN JUAN",
            "state": "PR",
            "postal_code": "009266435",
            "telephone_number": "787-731-5346"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1845 CARR 2 STE 609",
            "city": "BAYAMON",
            "state": "PR",
            "postal_code": "009597204",
            "telephone_number": "787-234-1536",
            "fax_number": "787-474-5422"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "715 Ave Ponce De Leon",
            "address_purpose": "LOCATION",
            "city": "Hato Rey",
            "state": "PR",
            "postal_code": "009175032",
            "country_code": "US",
            "telephone_number": "787-771-7999",
            "fax_number": "787-771-7996",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "PO Box 6660",
            "address_purpose": "LOCATION",
            "city": "Caguas",
            "state": "PR",
            "postal_code": "007266660",
            "country_code": "US",
            "telephone_number": "787-653-0550",
            "fax_number": "787-653-0530",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "PO Box 365067",
            "address_purpose": "LOCATION",
            "city": "San Juan",
            "state": "PR",
            "postal_code": "009365067",
            "country_code": "US",
            "telephone_number": "787-758-2525 x1821",
            "fax_number": "787-754-1739",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "PO Box 1142",
            "address_purpose": "LOCATION",
            "city": "Manati",
            "state": "PR",
            "postal_code": "006741142",
            "country_code": "US",
            "telephone_number": "787-621-3270",
            "fax_number": "787-621-3269",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MALINOW-MACEO",
        "first_name": "IONA",
        "middle_name": "KRYSTIN",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2006-10-11",
        "last_updated": "2026-07-05",
        "certification_date": "2026-07-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0201X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Allergy/Immunology",
            "state": "PR",
            "license": "13007",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Bayamon, PR

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 5, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.