Massiel Alexandra Santos Diaz, ARNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

APRN11010165 Issued in FL

Practice address

1474 W Granada Blvd Ste 455
Ormond Beach, FL 32174-8240

Phone

(386) 231-4685

Fax

(386) 231-4687

NPI assigned

Nov 12, 2020

Sex

Female

Sole proprietor

No

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 FL

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Adventhealth Primary Care Network IncGroup PAC ID 1557722410, 428 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Adventhealth Daytona Beach Hospital, Daytona Beach, FL, CCN 100068
• AdventHealth Palm Coast Hospital, Palm Coast, FL, CCN 100118

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: massiel.santos.diaz.1@29601.direct.athenahealth.com
• Direct secure messaging: msantosdiaz591920@direct.multicare.org

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.

• Adventhealth Primary Care Network Inc

  • Family Medicine Physician
  • Altamonte Springs, FL
  • NPI 1093493637
  Medicare reassignment Care Compare group NPD
• Conviva Medical Center Management LLC

  • Internal Medicine Physician
  • Miami, FL
  • NPI 1649324278
  Medicare reassignment NPD
• Metcare of Florida, Inc

  • Internal Medicine Physician
  • Port Orange, FL
  • NPI 1619433869
  NPD
• Img Medical Group de PA

  • Sports Medicine (Family Medicine) Physician
  • Boynton Beach, FL
  • NPI 1720708589
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Memorial Health Systems Inc

  • General Acute Care Hospital
  • Daytona Beach, FL
  • NPI 1063426823
  Care Compare affiliation
• Memorial Health Systems Inc

  • Clinical Medical Laboratory
  • Daytona Beach, FL
  • NPI 1104696178

  Hospital

  Care Compare affiliation
• Memorial Hospital Flagler Inc

  • General Acute Care Hospital
  • Palm Coast, FL
  • NPI 1679678486
  Care Compare affiliation

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

{
    "created_epoch": "1605139200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767139200000",
    "number": "1063014165",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3007",
            "city": "SEATTLE",
            "state": "WA",
            "postal_code": "981143007",
            "telephone_number": "206-788-3700",
            "fax_number": "206-962-3298"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1474 W GRANADA BLVD STE 455",
            "city": "ORMOND BEACH",
            "state": "FL",
            "postal_code": "321748240",
            "telephone_number": "386-231-4685",
            "fax_number": "386-231-4687"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "720 8th Ave S",
            "address_purpose": "LOCATION",
            "city": "Seattle",
            "state": "WA",
            "postal_code": "981043032",
            "country_code": "US",
            "telephone_number": "206-788-3700",
            "fax_number": "206-962-3298",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "SANTOS DIAZ",
        "first_name": "MASSIEL",
        "middle_name": "ALEXANDRA",
        "credential": "ARNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-11-12",
        "last_updated": "2025-12-31",
        "certification_date": "2025-12-31",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "FL",
            "license": "APRN11010165",
            "primary": true
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "WA",
            "license": "AP61173621",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Stacyann Ellen Sanders, OTA
• Sandford H Kinne III D O P a
• Adriane Sanitate
• Evelyn V Santiago Gonzalez, CRNA
• Shannon Michelle Santiago, PTA
• Sara Kohen Dean DMD PLLC
• Casy J Sargent, PTA
• Sarju Group LLC
• Madison Saunders, MD
• Madison Savage

• Nurse Practitioner in Ormond Beach, FL
• Providers in Ormond Beach, FL by specialty
• Nurse Practitioner in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 31, 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.