Merliz Negron Pantoja, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

21289 Issued in PR

Practice address

516 Calle Juan J Jimenez
San Juan, PR 00918-2605

Phone

(787) 940-4094

NPI assigned

Jul 27, 2015

Sex

Female

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

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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

• Qualimed Aesthetics LLC

  • General Practice Physician
  • San Juan, PR
  • NPI 1427811942

  Internal Medicine

  Medicare reassignment NPD
• Asociacion Hospital del Maestro

  • General Acute Care Hospital
  • San Juan, PR
  • NPI 1801236344
  NPD (past)

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

{
    "created_epoch": "1437955200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766102400000",
    "number": "1790160190",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "516 CALLE JUAN J JIMENEZ",
            "city": "SAN JUAN",
            "state": "PR",
            "postal_code": "009182605",
            "telephone_number": "787-940-4094"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "516 CALLE JUAN J JIMENEZ",
            "city": "SAN JUAN",
            "state": "PR",
            "postal_code": "009182605",
            "telephone_number": "787-940-4094"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NEGRON PANTOJA",
        "first_name": "MERLIZ",
        "name_prefix": "Ms.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2015-07-27",
        "last_updated": "2025-12-19",
        "certification_date": "2025-12-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "PR",
            "license": "21289",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Cindy Negron Fernandez, MSW
• Alejandra Negron Isaac, DC
• Natasha A Negron Lopez, RDN, LND
• Arelys J Negron Matos, MSPT
• Gabriela Maria Negron Ocasio, MD
• Martin F Negron Perez, DPT
• Bryan Negron Quinones
• Yomayra Negron Torres, MD
• Gabriela Negron Valdes
• Emma A. Negron-Mella, MD

• 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 Dec 19, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.