Arnaldo M Nieves Ramirez, M.D.

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

12225 Issued in PR

Practice address

7810 Calle Nazaret
Urb Santa Maria
Ponce, PR 00717-1008

Phone

(787) 843-0348

Fax

(787) 840-8623

NPI assigned

Mar 27, 2006

Sex

Male

Sole proprietor

No

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

Specialty

Gastroenterology

Education

University Central del Caribe Escuela de Medicina, 1990

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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.

• Southern Gastroenterology Medical Group, PSC

  • Specialist
  • Ponce, PR
  • NPI 1033261862
  Medicare reassignment

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

{
    "created_epoch": "1143417600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1902866437",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "376 CALLE GORRION",
            "address_2": "CAMINO DEL SUR",
            "city": "PONCE",
            "state": "PR",
            "postal_code": "007162815",
            "telephone_number": "787-284-0799"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7810 CALLE NAZARET",
            "address_2": "URB SANTA MARIA",
            "city": "PONCE",
            "state": "PR",
            "postal_code": "007171008",
            "telephone_number": "787-843-0348",
            "fax_number": "787-840-8623"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NIEVES RAMIREZ",
        "first_name": "ARNALDO",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-27",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "PR",
            "license": "12225",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kenmarie NG Brown
• Brittany Michelle Nieves Ayala
• Frances Stephanie Nieves Casasnovas
• Lina Nieves Gonzalez, OTH
• Paola Cristal Nieves Oquendo
• Nilmarie Nieves Ramos
• Christian Joel Nieves Rios
• Antonia I Nieves Sanchez, PSYD
• Alejandrina Nieves-de Hoyos
• Jose Orlando Nieves-Munoz, MD

• Gastroenterology Physician in Ponce, PR
• Providers in Ponce, PR by specialty
• Gastroenterology Physician in Puerto Rico

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; 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.