NPI registry status
Active
2026 NPPES data Surgical Assistant NPI 1740448950 PA-C
Verify on CMS → Karrie Johnson, PA-C
Surgical Assistant in Eugene, 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 4,711 in Surgical Assistant, 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
167
Medicare Part D claims · 109 beneficiaries · Surgical Assistant avg: 498
Industry payments
$104.17
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Karrie Johnson, PA-C filed 167 Medicare Part D claims in 2024 as a Surgical Assistant in Eugene, Oregon.
- 167
- Part D claims, 2024
- $104.17
- industry payments (Sunshine Act)
- ≥34th
- 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 Karrie Johnson, PA-C
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 1740448950), first enumerated 05/26/2008.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 167 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$104.17 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
- 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 1740448950 · Surgical Assistant
NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1740448950
- ENUM-MID 2008
- TAX-NARROW 4,711
- RX-LIGHT 167
- BOOK-THIN 48 in Oregon
- PHOTO-ENUM Jane Hyde · 2008
Karrie Johnson, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
167 ≥ 34th percentile 34% 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 Karrie Johnson, PA-C?
Quality data not reportedPrimary specialty
Surgical Assistant
Medicare Part D claims
167 66% vs specialty avg
Specialty distribution in Oregon
How Surgical Assistant 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 Surgical Assistant. 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 | 1740448950 |
|---|---|
| Specialty | Surgical Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 05/26/2008 |
Hospital and facility affiliations
Facilities where Karrie Johnson, PA-C 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.
Avera St Lukes
★★★★☆ 4/5
Mobridge, SD
Acute Care Hospitals
CMS CCN: 430014
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Karrie Johnson, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$104
Largest payer
Amgen Inc.
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
167
Total Claims
$2K
Total Drug Cost
109
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 167
- Total Day Supply
- 1,044
- Generic Drug Cost
- $1K
- Opioid Claims
- 116 (69.5% rate)
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 71.4 years
- Avg HCC Risk Score
- 0.92
- 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.
What Karrie Johnson, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2024
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
60 claims
- Oxycodone-Acetamin… 23
Oxycodone-Acetaminophen
23 claims
- Tramadol Hcl 20
Tramadol Hcl
20 claims
- Ondansetron Odt 15
Ondansetron Odt
15 claims
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 60 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 23 |
| Tramadol Hcl | 20 |
| Ondansetron Odt Ondansetron | 15 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Surgical Assistant Overview
How Karrie Johnson, PA-C fits within the Surgical Assistant landscape nationally.
4,711
Surgical Assistant Providers in US
52
States with Surgical Assistant
498
Avg Claims per Provider
Karrie Johnson, PA-C's 167 claims are below the specialty average of 498.
Nationwide Surgical Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Johnson, both outside Oregon so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2008)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Surgical Assistant Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Johnson.
One of 48 Surgical Assistant providers enrolled in Oregon, 5 are shown here.
Leah Alfano
SA-C
Beaverton, OR
Scott Bailor
CFA
Eugene, OR
Robin Benedict
CFA
Corvallis, OR
Ubaldo Blasquez Castro
CSFA
Eugene, OR
Ellie Boardman
Milwaukie, OR
Compare Surgical Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Karrie Johnson, PA-C's specialty? ▼
Karrie Johnson, PA-C specializes in Surgical Assistant and practices in Eugene, Oregon. Credentials: PA-C.
How much does Karrie Johnson, PA-C prescribe under Medicare Part D? ▼
In 2024, Karrie Johnson, PA-C wrote 167 Medicare Part D claims totaling $2K in drug costs for 109 beneficiaries.
Where is Karrie Johnson, PA-C located? ▼
Karrie Johnson, PA-C is located at 55 COBURG RD, Eugene, OR, 97401. Phone: (541) 485-8111.
What is Karrie Johnson, PA-C's NPI number? ▼
Karrie Johnson, PA-C's National Provider Identifier (NPI) is 1740448950, issued on 05/26/2008.
Does Karrie Johnson, PA-C prescribe opioids? ▼
Yes, Karrie Johnson, PA-C had 116 opioid claims in 2024 with an opioid prescribing rate of 69.5%.
How many Surgical Assistant providers are there in the US? ▼
There are 4,711 Surgical Assistant providers across 52 states in the US. The average Surgical Assistant provider writes 498 Medicare Part D claims per year.
What drugs does Karrie Johnson, PA-C prescribe most often? ▼
Based on 2024 Medicare Part D data, Karrie Johnson, PA-C's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Oxycodone-Acetaminophen, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Karrie Johnson, PA-C accept Medicare? ▼
Karrie Johnson, PA-C appears in CMS Medicare data with 167 Part D claims and 109 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Karrie Johnson, PA-C's credentials? ▼
Karrie Johnson, PA-C's NPI is 1740448950 with credentials PA-C. 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.