Quick answers
- Does Masaya Yokoyama accept Medicare assignment?
- Yes. Medicare's clinician data says Masaya Yokoyama 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 Masaya Yokoyama's NPI number?
- 1851019921. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Masaya Yokoyama works
Medicare's Facility Affiliation Data lists Masaya Yokoyama 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.
- Cleveland Clinic HospitalWeston, FL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 100289
- Cleveland Clinic Martin North HospitalStuart, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100044
Practice locations
Addresses where Masaya Yokoyama is enrolled with Medicare (CMS data updated October 2, 2026).
- 3100 Weston RdWeston, FL 33331 (954) 659‑5000
Group practices
Medicare enrollment lists Masaya Yokoyama as a member of this group (CMS data updated October 2, 2026).
- Cleveland Clinic Florida a Nonprofit Corporation735 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Weston
Clinicians with the same Medicare primary specialty in Weston, FL — not a recommendation.
Other clinicians in Cleveland Clinic Florida a Nonprofit Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1851019921 |
| 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