Nelson A Alvarez Cardin, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

21477 Issued in PR

Practice address

10 Calle Casia
San Juan, PR 00921-3201

Phone

(787) 641-7582

NPI assigned

May 13, 2019

Last updated

Oct 10, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

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

Specialty

Internal Medicine

Education

Other, 2018

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Nacmed LLC

  • Internal Medicine Physician
  • Juncos, PR
  • NPI 1013882034

  Single Specialty

  Medicare reassignment NPD Authorized official

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

{
    "created_epoch": "1557705600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1760054400000",
    "number": "1275199523",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "A26 CALLE 3",
            "address_2": "URB SANTA JUANA",
            "city": "CAGUAS",
            "state": "PR",
            "postal_code": "007252008",
            "telephone_number": "787-204-9771"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "10 CALLE CASIA",
            "city": "SAN JUAN",
            "state": "PR",
            "postal_code": "009213201",
            "telephone_number": "787-641-7582"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "R006  Calle Domingo Fidalgo",
            "address_purpose": "LOCATION",
            "city": "Juncos",
            "state": "PR",
            "postal_code": "00777",
            "country_code": "US",
            "telephone_number": "787-204-9771",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ALVAREZ CARDIN",
        "first_name": "NELSON",
        "middle_name": "A",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-05-13",
        "last_updated": "2025-10-10",
        "certification_date": "2025-10-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208M00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Hospitalist",
            "state": "PR",
            "license": "21477",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PR",
            "license": "21477",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Ricardo Luis Alvarado Sr.
• Sandra E Alvarado, RD,LND
• Luis F Alvarez - Reyes, M.D.
• Elaine Alvarez Barreto
• Alejandra Alvarez Brandt
• Maria Isabel Alvarez Cardona
• Angelica Yamira Alvarez Casul
• Samuel Alvarez Falcon
• Gilberto Eduardo Alvarez Ferrer, M.D
• Marisol Alvarez Figueroa

• Internal Medicine Physician in San Juan, PR
• Providers in San Juan, PR by specialty
• Internal Medicine Physician in Puerto Rico

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 10, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.