NPI registry status
Active
2026 NPPES data Periodontics NPI 1649214925 DDS MSD PH D
Verify on CMS → Donna Massoth, DDS MSD PH D
Periodontics in Seattle, Washington.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,120 in Periodontics, 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.
What the federal data shows
Donna Massoth, DDS MSD PH D is a Periodontics in Seattle, Washington, listed in the federal CMS National Provider Identifier registry.
- #114
- Periodontics rank among Washington specialties
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.
Federal trust snapshot
What official records show about Donna Massoth, DDS MSD PH D
Bare NPI registry listing — limited federal enrichment beyond basic enumeration. Verify all credentials with official sources.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1649214925), first enumerated 06/16/2006.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- State context
State board disciplinary context
Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Donna Massoth, DDS MSD PH D's individual license status. Verify directly with the state medical board.
Source: WMC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1649214925 · Periodontics
NPI-10 · ENUM-LEGACY · TAX-MID · RX-NONE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1649214925
- ENUM-LEGACY 2006
- TAX-MID 6K Periodontics
- RX-NONE No Part D
- BOOK-THIN 171 in Washington
- PHOTO-ENUM Michael Goldberg · 2006
What does the federal data show about Donna Massoth, DDS MSD PH D?
Quality data not reportedPrimary specialty
Periodontics
Specialty distribution in Washington
How Periodontics compares to other specialties among Washington 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 Periodontics. 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).
Practice Address
Provider Details
| NPI | 1649214925 |
|---|---|
| Specialty | Periodontics |
| Credentials | DDS MSD PH D |
| Gender | Female |
| NPI Issued | 06/16/2006 |
License & disciplinary context - Washington WMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 - they are NOT specific to Donna Massoth, DDS MSD PH D. To verify Donna Massoth, DDS MSD PH D's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Periodontics Overview
How Donna Massoth, DDS MSD PH D fits within the Periodontics landscape nationally.
6,120
Periodontics Providers in US
53
States with Periodontics
279
Avg Claims per Provider
Nationwide Periodontics peers with similar MIPS or enrollment year
Two federal-record peer sets for Massoth, both outside Washington so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Periodontics Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Massoth.
One of 171 Periodontics providers enrolled in Washington, 5 are shown here.
Jessica Adams
DDS MSD
Seattle, WA
Dr. Steven Aeschliman
D.D.S.
Spokane, WA
Dr. Peter Agnos
D.D.S.
Everett, WA
Dr. Ken Akimoto
DDS
Issaquah, WA
Dr. Huda Albather
DDS,MDS,MPH
Bellevue, WA
Compare Periodontics nationally: see state-by-state distribution →
Frequently Asked Questions
What is Donna Massoth, DDS MSD PH D's specialty? ▼
Donna Massoth, DDS MSD PH D specializes in Periodontics and practices in Seattle, Washington. Credentials: DDS MSD PH D.
Where is Donna Massoth, DDS MSD PH D located? ▼
Donna Massoth, DDS MSD PH D is located at 4500 SAND POINT WAY NE, Seattle, WA, 98105. Phone: (206) 524-3773.
What is Donna Massoth, DDS MSD PH D's NPI number? ▼
Donna Massoth, DDS MSD PH D's National Provider Identifier (NPI) is 1649214925, issued on 06/16/2006.
How many Periodontics providers are there in the US? ▼
There are 6,120 Periodontics providers across 53 states in the US. The average Periodontics provider writes 279 Medicare Part D claims per year.
Does Donna Massoth, DDS MSD PH D accept Medicare? ▼
Donna Massoth, DDS MSD PH D appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Donna Massoth, DDS MSD PH D's credentials? ▼
Donna Massoth, DDS MSD PH D's NPI is 1649214925 with credentials DDS MSD PH D. 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.
- 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 August 2026 (NPPES) / 2024 (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
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 August 2026.