NPI registry status
Active
2026 NPPES data Ophthalmology Physician NPI 1659458248 MD
Verify on CMS → Marjorie Debenedictis, MD
Ophthalmology Physician in Tamuning, Guam.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 22,090 in Ophthalmology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
143
Medicare Part D claims · 41 beneficiaries · Ophthalmology Physician avg: 1K
Generic prescribing
52%
generic claims · 48% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · Exceptional
Industry payments
$620.45
19 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Marjorie Debenedictis, MD reported a CMS MIPS final score of 100/100 - above the 83.1 national average - and filed 143 Medicare Part D claims in 2023.
- 100/100
- MIPS score · +17 vs avg
- 143
- Part D claims, 2023
- 52%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Marjorie Debenedictis, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
100 Top 7% higher than 93% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Marjorie Debenedictis, MD sits
This provider among ophthalmology physician peers
Across the 9,866 ophthalmology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Marjorie Debenedictis, MD writes more Part D claims than 8% of them and scores higher on MIPS quality than 85% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one ophthalmology physician peer from a representative sample of 60; the gold marker is Marjorie Debenedictis, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Marjorie Debenedictis, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Marjorie Debenedictis, MD?
High performer (top quartile)Primary specialty
Ophthalmology Physician
Medicare Part D claims
143 90% vs specialty avg
MIPS final score
100/100 16.9 pts vs avg
Specialty distribution in Guam
How Ophthalmology Physician compares to other specialties among Guam providers
Medicare quality performance, MIPS
Marjorie Debenedictis, MD's 2023 MIPS final score plotted against the Ophthalmology Physician national average
- MIPS Final Score
- 100/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Ophthalmology Physician) - 100/100 vs national avg 83.1
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Marjorie Debenedictis, MD appears in the CMS NPPES registry as a Ophthalmology Physician provider holding MD credentials at 633 GOV CARLOS CAMACHO RD., Tamuning, GU, 96913, with a listed phone of (671) 647-5829. NPI 1659458248 was issued on 11/01/2006.
Medicare Part D records for calendar year 2023 show 143 prescription claims written by this provider, covering 41 Medicare beneficiaries and totaling roughly $8K in drug spend, split 48% brand-name and 52% generic by claim count, with an opioid prescribing rate of 8.4%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), compared with the national average of 83.1.
Ophthalmology Physician is a mid-sized specialty nationwide, with 22,090 enrolled providers across 56 states and an average of 1,420 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1659458248 |
|---|---|
| Specialty | Ophthalmology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 11/01/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Avg: 83.1
100
Quality
Reporting: Group practice
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Marjorie Debenedictis, MD. Source: openpaymentsdata.cms.gov.
Total received
$620
Largest payer
Alcon Vision LLC
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Above average
Marjorie Debenedictis, MD - brand share 48.0%
Ophthalmology Physician average
48% brand-name claims vs 52% generic, on 143 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
143
Total Claims
$8K
Total Drug Cost
41
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 156
- Total Day Supply
- 3,954
- Brand vs Generic
- 48% brand / 52% generic
- Brand Drug Cost
- $5K
- Generic Drug Cost
- $2K
- Opioid Claims
- 12 (8.4% rate)
- Antibiotic Claims
- 18
Patient Demographics
- Average Patient Age
- 75.5 years
- Avg HCC Risk Score
- 0.84
- Gender Split
- 61% female / 39% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Marjorie Debenedictis, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Prednisolone Acetate
Prednisolone Acetate
33 claims
- Latanoprost
Latanoprost
27 claims
- Ketorolac Trometha…
Ketorolac Tromethamine
15 claims
- Timolol Maleate 13
Timolol Maleate
13 claims
- Oxycodone-Acetamin… 12
Oxycodone-Acetaminophen
12 claims
| Drug | Claims |
|---|---|
| Prednisolone Acetate | 33 |
| Latanoprost | 27 |
| Ketorolac Tromethamine | 15 |
| Timolol Maleate | 13 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Ophthalmology Physician Overview
How Marjorie Debenedictis, MD fits within the Ophthalmology Physician landscape nationally.
22,090
Ophthalmology Physician Providers in US
56
States with Ophthalmology Physician
1,420
Avg Claims per Provider
Marjorie Debenedictis, MD's 143 claims are below the specialty average of 1,420.
Nearby Ophthalmology Physician Providers in Guam
Other clinicians with the same primary specialty enrolled in Guam, drawn from the same CMS NPPES roster as Debenedictis.
Dr. Gregory Burton
MD
Tamuning, GU
Dr. Peter Lombard
M.D.
Sinajana, GU
Dr. Eyal Margalit
MD, PHD
Tamuning, GU
Dr. James McDarby
MD
Tamuning, GU
Dr. Anthony Smith
MD
Tamuning, GU
Compare Ophthalmology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Guam medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Ophthalmology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Guam
Frequently Asked Questions
What is Marjorie Debenedictis, MD's specialty? ▼
Marjorie Debenedictis, MD specializes in Ophthalmology Physician and practices in Tamuning, Guam. Credentials: MD.
How much does Marjorie Debenedictis, MD prescribe under Medicare Part D? ▼
In 2023, Marjorie Debenedictis, MD wrote 143 Medicare Part D claims totaling $8K in drug costs for 41 beneficiaries.
What is Marjorie Debenedictis, MD's Medicare quality score? ▼
Marjorie Debenedictis, MD has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Marjorie Debenedictis, MD located? ▼
Marjorie Debenedictis, MD is located at 633 GOV CARLOS CAMACHO RD., Tamuning, GU, 96913. Phone: (671) 647-5829.
What is Marjorie Debenedictis, MD's NPI number? ▼
Marjorie Debenedictis, MD's National Provider Identifier (NPI) is 1659458248, issued on 11/01/2006.
Does Marjorie Debenedictis, MD prescribe more brand-name or generic drugs? ▼
Marjorie Debenedictis, MD's prescribing is 48% brand-name and 52% generic drugs by claim count, with $5K in brand drug costs.
Does Marjorie Debenedictis, MD prescribe opioids? ▼
Yes, Marjorie Debenedictis, MD had 12 opioid claims in 2023 with an opioid prescribing rate of 8.4%.
How many Ophthalmology Physician providers are there in the US? ▼
There are 22,090 Ophthalmology Physician providers across 56 states in the US. The average Ophthalmology Physician provider writes 1,420 Medicare Part D claims per year.
What drugs does Marjorie Debenedictis, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Marjorie Debenedictis, MD's most frequently prescribed drugs include Prednisolone Acetate, Latanoprost, Ketorolac Tromethamine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marjorie Debenedictis, MD accept Medicare? ▼
Marjorie Debenedictis, MD appears in CMS Medicare data with 143 Part D claims and 41 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marjorie Debenedictis, MD's credentials? ▼
Marjorie Debenedictis, MD's NPI is 1659458248 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Compiled from official public sources by the PlainDoctor editorial team.