Quick answers
- Does Tonye M. Masse accept Medicare assignment?
- Yes. Medicare's clinician data says Tonye M. Masse 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.
- How many Medicare patients does Tonye M. Masse see?
- In 2024, CMS data shows 482 Original Medicare patients and 12,369 services for Tonye M. Masse. This counts Original Medicare only and measures volume, not quality.
- What is Tonye M. Masse's NPI number?
- 1225410335. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Tonye M. Masse, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 482 |
|---|---|
| Services billed to Medicare | 12,369 |
| Different services or procedures | 83 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)6,543 services
- Injection, methylprednisolone acetate, 1 mg (J1010)2,040 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)821 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)551 services
- Low osmolar contrast material, 200-299 mg/ml iodine concentration, per ml (Q9966)327 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Diabetes69%
- Chronic kidney disease53%
- Arthritis50%
- Ischemic heart disease44%
Practice locations
Addresses where Tonye M. Masse is enrolled with Medicare (CMS data updated October 2, 2026).
- 633 Gov Carlos Camacho Rd, Suite 210Tamuning, GU 96913 (671) 649‑1001
Group practices
Medicare enrollment lists Tonye M. Masse as a member of this group (CMS data updated October 2, 2026).
- Guam X-Ray30 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Tamuning
Clinicians with the same Medicare primary specialty in Tamuning, GU — not a recommendation.
Other clinicians in Guam X-Ray
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225410335 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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