Josean Omar Flores Santiago, MD

Primary specialty

Nephrology PhysicianTaxonomy code 207RN0300X

License

023329 Issued in PR

Practice address

14 Calle Peral N Ste 1C
Mayaguez, PR 00680-4872

Phone

(939) 301-3030

NPI assigned

Jul 19, 2018

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

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

Interoperability endpoints

• Direct secure messaging: josean.floressantiago.p1@direct.vitacare.nextgenshare.com

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.

• Advanced Renal Care Institute

  • Multi-Specialty Clinic/Center
  • Mayaguez, PR
  • NPI 1982830956

  Nephrology, PR

  Medicare reassignment NPD
• Kidney Intelligence LLC

  • Nephrology Physician
  • Anasco, PR
  • NPI 1700625530

  PR, Single Specialty

  Medicare reassignment NPD
• Ayala Troche, MD, C.S.P.

  • Medical Specialty Clinic/Center
  • San German, PR
  • NPI 1518569136

  Single Specialty

  NPD (past)
• Southern Kidney Specialists - Gretna LLC

  • End-Stage Renal Disease (ESRD) Treatment Clinic/Center
  • Gretna, LA
  • NPI 1194357459
  NPD (past)

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

{
    "created_epoch": "1531958400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757980800000",
    "number": "1467938795",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3374",
            "city": "MAYAGUEZ",
            "state": "PR",
            "postal_code": "006813374",
            "telephone_number": "939-301-3030"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "14 CALLE PERAL N STE 1C",
            "city": "MAYAGUEZ",
            "state": "PR",
            "postal_code": "006804872",
            "telephone_number": "939-301-3030"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "FLORES SANTIAGO",
        "first_name": "JOSEAN",
        "middle_name": "OMAR",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2018-07-19",
        "last_updated": "2025-09-16",
        "certification_date": "2025-09-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RN0300X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Nephrology",
            "state": "PR",
            "license": "023329",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• First Class Ambulance Inc
• First Home Care Center, Inc.
• First Hosptial Panamericano
• Waleska Flores Atresino, OT/R
• Efrain M Flores de Hostos, MD
• Ivonne Flores-Rivera, M.D.
• Minerva Flores, TECNICA DE FARMACIA
• Moises Florian Ortiz, M.D.
• For Eyes Optical of Puerto Rico, LLC
• Fortal Tech Corp

• Nephrology Physician in Mayaguez, PR
• Providers in Mayaguez, PR by specialty
• Nephrology Physician in Puerto Rico

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 16, 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.