2026 NPPES data Family Medicine Physician NPI 1639470529 D.O.
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SAMANTHA MASON, D.O.

Family Medicine Physician in ROSEBURG, Oregon. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
268
Medicare Part D claims · 131 beneficiaries · Family Medicine Physician avg: 3K
MIPS score
85.6641/100
▲ 3 pts above national avg 83.1 · [object Object]

What the federal data shows

SAMANTHA MASON, D.O. reported a CMS MIPS final score of 85.6641/100 — above the 83.1 national average — and filed 268 Medicare Part D claims in 2023.

85.6641/100
MIPS score · +3 vs avg
268
Part D claims, 2023
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.

SAMANTHA MASON, D.O.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

86 49th percentile higher than 49% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

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

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)

NPI registry status

Active

Issued 11/08/2010

NPI 1639470529

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

268 92% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

MIPS final score

85.6641/100 2.5641000000000105% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Oregon

How Family Medicine Physician compares to other specialties among Oregon providers

Oregon providers

Family Medicine Physician share within Oregon

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within Oregon

Medicare quality performance — MIPS

SAMANTHA MASON, D.O.'s 2023 MIPS final score plotted against the Family Medicine Physician national average

High performer (top quartile)
MIPS Final Score
85.6641/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Family Medicine Physician) — 85.6641/100 vs national avg 83.1

0%100%National avg83%85.7%
MIPS final score (Family Medicine Physician) — 85.6641/100 vs national avg 83.1

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).

SAMANTHA MASON, D.O. appears in the CMS NPPES registry as a Family Medicine Physician provider holding D.O. credentials at 2700 NW STEWART PKWY, ROSEBURG, OR, 97471, with a listed phone of (541) 677-1527. NPI 1639470529 was issued on 11/08/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MASON most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 268 prescription claims written by this provider, covering 131 Medicare beneficiaries and totaling roughly $16K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 85.6641/100 for the 2023 performance year, compared with the national average of 83.1.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

2700 NW STEWART PKWY
ROSEBURG, OR 97471

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
Avg: 83.1
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
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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

SAMANTHA MASON, D.O.'s 268 claims are below the specialty average of 3,418.

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.

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 85.6641/100, Cost: 51.3282. The national average MIPS Final Score is 83.1. 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 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 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

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