NPI registry status
Active
2026 NPPES data Dentist NPI 1508247180
Verify on CMS → Mark Walker
Dentist in Yakima, 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 95,573 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
64
Medicare Part D claims · 49 beneficiaries · Dentist avg: 90
Industry payments
$43.39
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Mark Walker filed 64 Medicare Part D claims in 2024 as a Dentist in Yakima, Washington.
- 64
- Part D claims, 2024
- $43.39
- industry payments (Sunshine Act)
- ≥0th
- pct by Part D claim volume (lower-bound band)
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 Mark Walker
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1508247180), first enumerated 06/09/2015.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 64 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Industry payment transparency
$43.39 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Mark Walker'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.
Compare Walker with other Dentist providers
Same primary specialty, same federal CMS NPPES roster.
All 45 Dentist providers in Yakima, WA →
Also enrolled in Washington
- Dr. Kristine Aadland, DMD Vancouver, WA
- Rania Abasaeed Seattle, WA
- Sara Abdelhai Auburn, WA
- Hesham Abdulkarim, BDS, MSD Tacoma, WA
- Arman Abedi Joni Everett, WA
- Dr. Rima Abifaker, DDS Bellevue, WA
Other specialties in Yakima: Case Manager/Care Coordinator (321) · Mental Health Counselor (310) · Addiction (Substance Use Disorder) Counselor (247) · Massage Therapist (199)
CMS NPPES provider registry desk
NPI 1508247180 · Dentist
NPI-10 · ENUM-MID · TAX-MEGA · RX-TRACE · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1508247180
- ENUM-MID 2015
- TAX-MEGA 96K Dentist
- RX-TRACE 64
- BOOK-LIGHT 2,738 in Washington
- PHOTO-ENUM Timothy Whaley, D.D.S. · 2015
Mark Walker's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
64 ≥ 0th percentile 0% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Mark Walker?
Quality data not reportedPrimary specialty
Dentist
Medicare Part D claims
64 29% vs specialty avg
Specialty distribution in Washington
How Dentist 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 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).
Practice Address
Provider Details
| NPI | 1508247180 |
|---|---|
| Specialty | Dentist |
| Gender | Male |
| NPI Issued | 06/09/2015 |
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 Mark Walker. Source: openpaymentsdata.cms.gov.
Total received
$43
Largest payer
Solventum Corporation
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.
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 Mark Walker. To verify Mark Walker'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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
64
Total Claims
$659
Total Drug Cost
49
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 88.333
- Total Day Supply
- 1,565
- Brand Drug Cost
- $0
- Generic Drug Cost
- $659
- Antibiotic Claims
- 40
Patient Demographics
- Average Patient Age
- 72.3 years
- Avg HCC Risk Score
- 1.04
- Gender Split
- 55% female / 45% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Penicillin V Potassium | 22 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dentist Overview
How Mark Walker fits within the Dentist landscape nationally.
95,573
Dentist Providers in US
56
States with Dentist
90
Avg Claims per Provider
Mark Walker's 64 claims are below the specialty average of 90.
Nationwide Dentist peers with similar MIPS or enrollment year
Two federal-record peer sets for Walker, both outside Washington so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2015)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Dentist Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Walker.
One of 2,738 Dentist providers enrolled in Washington, 11 are shown on this page.
Dr. Nadia Aboulhosn
DDS
Everett, WA
Dr. Alfadhli Abu
D.D.S
Kirkland, WA
Dr. Naim Abualshar
DDS
Spokane, WA
Dr. Jadine Acena
DDS
Seattle, WA
Dr. Althea Acosta
DDS
Olympia, WA
Compare Dentist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Mark Walker's specialty? ▼
Mark Walker specializes in Dentist and practices in Yakima, Washington.
How much does Mark Walker prescribe under Medicare Part D? ▼
In 2024, Mark Walker wrote 64 Medicare Part D claims totaling $659 in drug costs for 49 beneficiaries.
Where is Mark Walker located? ▼
Mark Walker is located at 12 S 8TH ST, Yakima, WA, 98901. Phone: (509) 454-4143.
What is Mark Walker's NPI number? ▼
Mark Walker's National Provider Identifier (NPI) is 1508247180, issued on 06/09/2015.
How many Dentist providers are there in the US? ▼
There are 95,573 Dentist providers across 56 states in the US. The average Dentist provider writes 90 Medicare Part D claims per year.
What drugs does Mark Walker prescribe most often? ▼
Based on 2024 Medicare Part D data, Mark Walker's most frequently prescribed drugs include Penicillin V Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mark Walker accept Medicare? ▼
Mark Walker appears in CMS Medicare data with 64 Part D claims and 49 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mark Walker's credentials? ▼
Mark Walker's NPI is 1508247180. 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 (2024). 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 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.