Demian Emil Grau, MD

Primary specialty

General Practice PhysicianTaxonomy code 208D00000X

License

24013 Issued in PR

Practice address

Carr 891 KM 15.1
Corozal, PR 00783

Phone

(787) 859-2560

NPI assigned

Jan 25, 2019

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

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.

• Salud Integral En la Montana, Inc

  • Federally Qualified Health Center (FQHC)
  • Comerio, PR
  • NPI 1275556946
  Medicare reassignment NPD
• Salud Integral En la Montana, Inc

  • Federally Qualified Health Center (FQHC)
  • Naranjito, PR
  • NPI 1578586244
  Medicare reassignment
• Salud Integral En la Montana, Inc

  • Radiology Clinic/Center
  • Naranjito, PR
  • NPI 1861973182
  NPD
• Salud Integral En la Montana, Inc.

  • Clinic/Center
  • Corozal, PR
  • NPI 1205665353
  NPD
• Salud Integral En la Montana, Inc.

  • Clinic/Center
  • Dorado, PR
  • NPI 1760371868
  NPD

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

{
    "created_epoch": "1548374400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780531200000",
    "number": "1407310253",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1047 CALLE 9 SE",
            "city": "SAN JUAN",
            "state": "PR",
            "postal_code": "009213124",
            "telephone_number": "787-690-8895"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "CARR 891 KM 15.1",
            "city": "COROZAL",
            "state": "PR",
            "postal_code": "00783",
            "telephone_number": "787-859-2560"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GRAU",
        "first_name": "DEMIAN",
        "middle_name": "EMIL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-01-25",
        "last_updated": "2026-06-04",
        "certification_date": "2026-06-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208D00000X",
            "taxonomy_group": "",
            "desc": "General Practice",
            "state": "PR",
            "license": "24013",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Karissa Francheska Gonzalez Jimenez, PHARMD
• Zaida I Gonzalez Rivera
• Yania Gonzalez-Huertas
• Julio A Gonzalez, MD
• Rosalind Gonzalez, OT
• Grupo de Medicina Familiar de Corozal, Inc.
• Grupo Fisiatrico de Corozal
• Grupo Fisiatrico de Corozal PSC
• Grupo Medicina Primaria de Corozal, Inc.
• Gilmarie Guzman Negron, DC, ND

• General Practice Physician in Corozal, PR
• Providers in Corozal, PR by specialty
• General Practice Physician in Puerto Rico

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 4, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.