NPI registry status
Active
2026 NPPES data Family Medicine Physician NPI 1639470529 D.O.
Verify on CMS → Samantha Mason, D.O.
Family Medicine Physician in Roseburg, 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 150,125 in Family Medicine 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
268
Medicare Part D claims · 131 beneficiaries · Family Medicine Physician avg: 3K
MIPS score
85.7/100
▲ 2 pts above national avg 83.5 · Above neutral
What the federal data shows
Samantha Mason, D.O. reported a CMS MIPS final score of 85.7/100 - above the 83.5 national average - and filed 268 Medicare Part D claims in 2023.
- 85.7/100
- MIPS score · +2 vs avg
- 268
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥46th
- pct among measured MIPS (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 Samantha Mason, D.O.
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1639470529), first enumerated 11/08/2010.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 268 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 85.7/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1639470529 · Family Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · MIPS-INLINE · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1639470529
- ENUM-MID 2010
- TAX-MEGA 150K Family Medicine
- MIPS-INLINE 85.7/100
- RX-LIGHT 268
- BOOK-LIGHT 2,711 in Oregon
- PHOTO-FINISH Lia Boyanton · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Michael Carroll …
Michael Carroll
85.6 MIPS pts
- Mason · this pro…
Mason · this provider
85.7 MIPS pts
- Lia Boyanton · h…
Lia Boyanton
85.7 MIPS pts
- Ahmad Almustafa …
Ahmad Almustafa
85.7 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Samantha Mason, D.O.'s MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
86 ≥ 46th percentile 46% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Samantha Mason, D.O. sits
This provider among family medicine physician peers
Across the 21,266 family medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Samantha Mason, D.O. writes more Part D claims than 15% of them and scores higher on MIPS quality than 46% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one family medicine physician peer from a representative sample of 60; the gold marker is Samantha Mason, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Samantha Mason, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 Samantha Mason, D.O.?
High performer (top quartile)Primary specialty
Family Medicine Physician
Medicare Part D claims
268 92% vs specialty avg
MIPS final score
85.7/100 2.2 pts vs avg
Specialty distribution in Oregon
How Family Medicine Physician compares to other specialties among Oregon providers
Medicare quality performance, MIPS
Samantha Mason, D.O.'s 2023 MIPS final score plotted against the Family Medicine Physician national average
- MIPS Final Score
- 85.7/100
- vs 83.5 national avg · 2023 performance year
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 | 1639470529 |
|---|---|
| Specialty | Family Medicine Physician |
| Credentials | D.O. |
| Gender | Female |
| NPI Issued | 11/08/2010 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
85.6641
Final Score
Measured-score avg: 83.5
51.3282
Cost
Reporting: Group practice
Hospital and facility affiliations
Facilities where Samantha Mason, D.O. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Galen Inpatient Physicians PC
Redding, CA
Palomar Hospitalist Medical Group Inc
Poway, CA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
268
Total Claims
$16K
Total Drug Cost
131
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 281.1
- Total Day Supply
- 5,649
- Generic Drug Cost
- $4K
- Antibiotic Claims
- 66
Patient Demographics
- Average Patient Age
- 74.6 years
- Avg HCC Risk Score
- 2.92
- Gender Split
- 51% female / 49% male
- Age Distribution
- <65: 14, 65-74: 53, 75-84: 37, 85+: 27
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Samantha Mason, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
18 claims
- Eliquis
Eliquis
14 claims
- Amiodarone Hcl
Amiodarone Hcl
12 claims
- Cefpodoxime Proxetil
Cefpodoxime Proxetil
12 claims
- Prednisone
Prednisone
12 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 18 |
| Eliquis Apixaban | 14 |
| Amiodarone Hcl | 12 |
| Cefpodoxime Proxetil | 12 |
| Prednisone | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Family Medicine Physician Overview
How Samantha Mason, D.O. fits within the Family Medicine Physician landscape nationally.
150,125
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,385
Avg Claims per Provider
Samantha Mason, D.O.'s 268 claims are below the specialty average of 3,385.
Nationwide Family Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Mason, both outside Oregon so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (85.7 here).
Same NPPES enumeration year (2010)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Family Medicine Physician Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Mason.
One of 2,711 Family Medicine Physician providers enrolled in Oregon, 5 are shown here.
Dr. Roxana Abbott
DO
Portland, OR
Dr. David Abdun-Nur
M.D.
Grants Pass, OR
Dr. Traci Ackron
D.O.
Hillsboro, OR
Dr. Orlando Acosta
MD
Hood River, OR
Dr. Michele Adamcak
D.O.
Tigard, OR
Compare Family Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Samantha Mason, D.O.'s specialty? ▼
Samantha Mason, D.O. specializes in Family Medicine Physician and practices in Roseburg, Oregon. Credentials: D.O..
How much does Samantha Mason, D.O. prescribe under Medicare Part D? ▼
In 2023, Samantha Mason, D.O. wrote 268 Medicare Part D claims totaling $16K in drug costs for 131 beneficiaries.
What is Samantha Mason, D.O.'s Medicare quality score? ▼
Samantha Mason, D.O. has a CMS MIPS Final Score of 85.7/100, Cost: 51.3. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Samantha Mason, D.O. located? ▼
Samantha Mason, D.O. is located at 2700 NW STEWART PKWY, Roseburg, OR, 97471. Phone: (541) 677-1527.
What is Samantha Mason, D.O.'s NPI number? ▼
Samantha Mason, D.O.'s National Provider Identifier (NPI) is 1639470529, issued on 11/08/2010.
How many Family Medicine Physician providers are there in the US? ▼
There are 150,125 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,385 Medicare Part D claims per year.
What drugs does Samantha Mason, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Samantha Mason, D.O.'s most frequently prescribed drugs include Atorvastatin Calcium, Eliquis, Amiodarone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Samantha Mason, D.O. accept Medicare? ▼
Samantha Mason, D.O. appears in CMS Medicare data with 268 Part D claims and 131 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Samantha Mason, D.O.'s credentials? ▼
Samantha Mason, D.O.'s NPI is 1639470529 with credentials D.O.. 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
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.