Quick answers
- Does Massiel Santos Diaz accept Medicare assignment?
- Yes. Medicare's clinician data says Massiel Santos Diaz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Massiel Santos Diaz's NPI number?
- 1063014165. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Massiel Santos Diaz works
Medicare's Facility Affiliation Data lists Massiel Santos Diaz at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- AdventHealth Daytona BeachDaytona Beach, FL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 100068
- AdventHealth Palm CoastPalm Coast, FL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 100118
Practice locations
Addresses where Massiel Santos Diaz is enrolled with Medicare (CMS data updated October 2, 2026).
- 1474 W Granada Blvd, Suite 455Ormond Beach, FL 32174 (386) 231‑4685
- 661 E Altamonte Dr, Suite 115Altamonte Springs, FL 32701 (407) 831‑4040
Group practices
Medicare enrollment lists Massiel Santos Diaz as a member of this group (CMS data updated October 2, 2026).
- AdventHealth Primary Care Network Inc450 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Ormond Beach
Clinicians with the same Medicare primary specialty in Ormond Beach, FL — not a recommendation.
Other clinicians in AdventHealth Primary Care Network Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063014165 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians