Quick answers
- Does Marjorie F. Debenedictis accept Medicare assignment?
- Yes. Medicare's clinician data says Marjorie F. Debenedictis 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 Marjorie F. Debenedictis see?
- In 2024, CMS data shows 432 Original Medicare patients and 1,482 services for Marjorie F. Debenedictis. This counts Original Medicare only and measures volume, not quality.
- What is Marjorie F. Debenedictis's NPI number?
- 1659458248. 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 Marjorie F. Debenedictis, 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 | 432 |
|---|---|
| Services billed to Medicare | 1,482 |
| Different services or procedures | 34 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient complete exam of visual system (92014)309 services
- Imaging of retina (92134)244 services
- Established patient problem focused exam of visual system (92012)189 services
- New patient complete exam of visual system (92004)136 services
- Measurement of corneal curvature and depth of eye (92136)111 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%
- Diabetes66%
- Chronic kidney disease34%
- Arthritis28%
- Ischemic heart disease25%
Practice locations
Addresses where Marjorie F. Debenedictis is enrolled with Medicare (CMS data updated October 2, 2026).
- 633 Gov Carlos Camacho Rd, Suite 204Tamuning, GU 96913 (671) 647‑5829
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Tamuning
Clinicians with the same Medicare primary specialty in Tamuning, GU — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Southern California Keck School Of Medicine |
| Graduation year | 1992 (34 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1659458248 |
| 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