William Perez Guillama, PHARMD

Primary specialty

Community/Retail PharmacyTaxonomy code 3336C0003X

License

8457 Issued in PR

Practice address

Carr 167 Calle Marginal Oeste Plaza Tropical
Barrio Cerro Gordo
Bayamon, PR 00956

Phone

(787) 395-7480

NPI assigned

Oct 21, 2025

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Not enrolled

Credentials

Doctor of Pharmacy

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

{
    "created_epoch": "1761004800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1761264000000",
    "number": "1104793447",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 781",
            "city": "CAMUY",
            "state": "PR",
            "postal_code": "006270781",
            "telephone_number": "787-395-7480"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "CARR 167 CALLE MARGINAL OESTE PLAZA TROPICAL",
            "address_2": "BARRIO CERRO GORDO",
            "city": "BAYAMON",
            "state": "PR",
            "postal_code": "00956",
            "telephone_number": "787-395-7480"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "PEREZ GUILLAMA",
        "first_name": "WILLIAM",
        "credential": "PHARMD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2025-10-21",
        "last_updated": "2025-10-24",
        "certification_date": "2025-10-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "3336C0003X",
            "taxonomy_group": "",
            "desc": "Pharmacy, Community/Retail Pharmacy",
            "state": "PR",
            "license": "8457",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Benjamin Perez de Gracia, RPH
• Emilio Alberto Perez de Leon Sr., MD
• Aida Iris Perez Erba, PHARM D
• Carlos Perez Fernandez, MD
• Alberto Perez Gonzalez, PSY D
• Yashira Marie Perez Guzman, MD
• Karla Marie Perez Jimenez, MD
• Nicolas M Perez Maldonado, M.D.
• Jose F. Perez Moll, D.M.D.
• Carlos Gamaliel Perez Morales

• Community/Retail Pharmacy in Bayamon, PR
• Providers in Bayamon, PR by specialty
• Community/Retail Pharmacy in Puerto Rico

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 24, 2025; 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.