NPI registry status
Active
2026 NPPES data Dentist NPI 1669126744 DDS
Verify on CMS → Melissa De Mattos, DDS
Dentist in Portland, Oregon.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 93,793 in Dentist, 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
23
Medicare Part D claims · 18 beneficiaries · Dentist avg: 87
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Melissa De Mattos, DDS filed 23 Medicare Part D claims in 2023 as a Dentist in Portland, Oregon.
- 23
- Part D claims, 2023
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.
Melissa De Mattos, DDS's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
23 0th percentile higher than 0% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Melissa De Mattos, DDS?
Quality data not reportedPrimary specialty
Dentist
Medicare Part D claims
23 74% vs specialty avg
Specialty distribution in Oregon
How Dentist compares to other specialties among Oregon providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Dentist. Verify directly:
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).
Melissa De Mattos, DDS appears in the CMS NPPES registry as a Dentist provider holding DDS credentials at 13831 NW CORNELL RD STE C, Portland, OR, 97229, with a listed phone of (503) 718-3762. NPI 1669126744 was issued on 02/08/2022.
Medicare Part D records for calendar year 2023 show 23 prescription claims written by this provider, covering 18 Medicare beneficiaries and totaling roughly $203 in drug spend.
Dentist is a high-volume specialty nationwide, with 93,793 enrolled providers across 56 states and an average of 87 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 | 1669126744 |
|---|---|
| Specialty | Dentist |
| Credentials | DDS |
| Gender | Female |
| NPI Issued | 02/08/2022 |
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
23
Total Claims
$203
Total Drug Cost
18
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 23
- Total Day Supply
- 357
- Generic Drug Cost
- $79
- Antibiotic Claims
- 13
Patient Demographics
- Average Patient Age
- 63.3 years
- Avg HCC Risk Score
- 1.70
Dentist Overview
How Melissa De Mattos, DDS fits within the Dentist landscape nationally.
93,793
Dentist Providers in US
56
States with Dentist
87
Avg Claims per Provider
Melissa De Mattos, DDS's 23 claims are below the specialty average of 87.
Nearby Dentist Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as De Mattos.
Dr. Tamara Abbett
D.D.S.
Medford, OR
Dr. Kyoko Abe
D.M.D
Portland, OR
Dr. Daniel Adair
D.D.S.
Salem, OR
Dr. Christopher Adams
D.D.S.
Roseburg, OR
Dr. Kathleene Adams
DMD
Portland, OR
Compare Dentist 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 Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Dentist 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 Oregon
Frequently Asked Questions
What is Melissa De Mattos, DDS's specialty? ▼
Melissa De Mattos, DDS specializes in Dentist and practices in Portland, Oregon. Credentials: DDS.
How much does Melissa De Mattos, DDS prescribe under Medicare Part D? ▼
In 2023, Melissa De Mattos, DDS wrote 23 Medicare Part D claims totaling $203 in drug costs for 18 beneficiaries.
Where is Melissa De Mattos, DDS located? ▼
Melissa De Mattos, DDS is located at 13831 NW CORNELL RD STE C, Portland, OR, 97229. Phone: (503) 718-3762.
What is Melissa De Mattos, DDS's NPI number? ▼
Melissa De Mattos, DDS's National Provider Identifier (NPI) is 1669126744, issued on 02/08/2022.
How many Dentist providers are there in the US? ▼
There are 93,793 Dentist providers across 56 states in the US. The average Dentist provider writes 87 Medicare Part D claims per year.
Does Melissa De Mattos, DDS accept Medicare? ▼
Melissa De Mattos, DDS appears in CMS Medicare data with 23 Part D claims and 18 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Melissa De Mattos, DDS's credentials? ▼
Melissa De Mattos, DDS's NPI is 1669126744 with credentials DDS. 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.
- 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.