NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1871169003 PA-C
Verify on CMS → Mara Anderson, PA-C
Physician Assistant in Hillsboro, 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 150,974 in Physician 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
348
Medicare Part D claims · 158 beneficiaries · Physician Assistant avg: 790
Generic prescribing
96%
generic claims · 4% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
97.8/100
▲ 15 pts above national avg 83.1 · Exceptional
Industry payments
$20.37
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Mara Anderson, PA-C reported a CMS MIPS final score of 97.8/100 - above the 83.1 national average - and filed 348 Medicare Part D claims in 2023.
- 97.8/100
- MIPS score · +15 vs avg
- 348
- Part D claims, 2023
- 96%
- generic prescribing
- $20.37
- industry payments (Sunshine Act)
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.
Mara Anderson, PA-C's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
98 Top 15% higher than 85% of 477,587 scored providers
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
Where Mara Anderson, PA-C sits
This provider among physician assistant peers
Across the 27,054 physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Mara Anderson, PA-C writes more Part D claims than 60% of them and scores higher on MIPS quality than 89% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one physician assistant peer from a representative sample of 60; the gold marker is Mara Anderson, PA-C. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about Mara Anderson, PA-C?
High performer (top quartile)Primary specialty
Physician Assistant
Medicare Part D claims
348 56% vs specialty avg
MIPS final score
97.8/100 14.7 pts vs avg
Specialty distribution in Oregon
How Physician Assistant compares to other specialties among Oregon providers
Medicare quality performance, MIPS
Mara Anderson, PA-C's 2023 MIPS final score plotted against the Physician Assistant national average
- MIPS Final Score
- 97.8/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Physician Assistant) - 97.8/100 vs national avg 83.1
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).
Mara Anderson, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 1200 NE 48TH AVE STE 1100, Hillsboro, OR, 97124, with a listed phone of (503) 844-8219. NPI 1871169003 was issued on 05/28/2021.
Medicare Part D records for calendar year 2023 show 348 prescription claims written by this provider, covering 158 Medicare beneficiaries and totaling roughly $5K in drug spend, split 4% brand-name and 96% generic by claim count, with an opioid prescribing rate of 48.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 97.8/100 for the 2023 performance year (Quality 81), compared with the national average of 83.1.
Physician Assistant is a high-volume specialty nationwide, with 150,974 enrolled providers across 56 states and an average of 790 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
Provider Details
| NPI | 1871169003 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 05/28/2021 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
97.83
Final Score
Avg: 83.1
80.9759
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Mara Anderson, 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.
Tuality Medical Group LLC
Hillsboro, OR
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 Mara Anderson, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$20
Largest payer
Bioventus LLC
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.
Brand vs generic prescribing mix · Generic-heavy
Mara Anderson, PA-C - brand share 4.0%
Physician Assistant average
4% brand-name claims vs 96% generic, on 348 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
348
Total Claims
$5K
Total Drug Cost
158
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 356
- Total Day Supply
- 3,545
- Brand vs Generic
- 4% brand / 96% generic
- Brand Drug Cost
- $1K
- Generic Drug Cost
- $3K
- Opioid Claims
- 167 (48.0% rate)
- Antibiotic Claims
- 23
Patient Demographics
- Average Patient Age
- 72.0 years
- Avg HCC Risk Score
- 0.92
- Gender Split
- 58% female / 42% male
- Age Distribution
- <65: 24, 65-74: 77, 75-84: 46, 85+: 11
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Mara Anderson, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
108 claims
- Ondansetron Odt
Ondansetron Odt
64 claims
- Celecoxib 39
Celecoxib
39 claims
- Hydromorphone Hcl 32
Hydromorphone Hcl
32 claims
- Tramadol Hcl 18
Tramadol Hcl
18 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 108 |
| Ondansetron Odt Ondansetron | 64 |
| Celecoxib | 39 |
| Hydromorphone Hcl | 32 |
| Tramadol Hcl | 18 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Mara Anderson, PA-C fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Mara Anderson, PA-C's 348 claims are below the specialty average of 790.
Nearby Physician Assistant Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Anderson.
Dr. Alyssa Abbey
PA-C
Bend, OR
Dr. Matthew Abbott
PA-C
Portland, OR
Sanyi Yoseph Abdissa
Hermiston, OR
Dr. Emad Aboujaoude
PA
Portland, OR
Dr. Christopher Accola
PHARMD
Springfield, OR
Compare Physician Assistant nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Oregon medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Physician Assistant peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Mara Anderson, PA-C's specialty? ▼
Mara Anderson, PA-C specializes in Physician Assistant and practices in Hillsboro, Oregon. Credentials: PA-C.
How much does Mara Anderson, PA-C prescribe under Medicare Part D? ▼
In 2023, Mara Anderson, PA-C wrote 348 Medicare Part D claims totaling $5K in drug costs for 158 beneficiaries.
What is Mara Anderson, PA-C's Medicare quality score? ▼
Mara Anderson, PA-C has a CMS MIPS Final Score of 97.8/100 (Quality: 81). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Mara Anderson, PA-C located? ▼
Mara Anderson, PA-C is located at 1200 NE 48TH AVE STE 1100, Hillsboro, OR, 97124. Phone: (503) 844-8219.
What is Mara Anderson, PA-C's NPI number? ▼
Mara Anderson, PA-C's National Provider Identifier (NPI) is 1871169003, issued on 05/28/2021.
Does Mara Anderson, PA-C prescribe more brand-name or generic drugs? ▼
Mara Anderson, PA-C's prescribing is 4% brand-name and 96% generic drugs by claim count, with $1K in brand drug costs.
Does Mara Anderson, PA-C prescribe opioids? ▼
Yes, Mara Anderson, PA-C had 167 opioid claims in 2023 with an opioid prescribing rate of 48.0%.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Mara Anderson, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Mara Anderson, PA-C's most frequently prescribed drugs include Oxycodone Hcl, Ondansetron Odt, Celecoxib. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Mara Anderson, PA-C accept Medicare? ▼
Mara Anderson, PA-C appears in CMS Medicare data with 348 Part D claims and 158 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Mara Anderson, PA-C's credentials? ▼
Mara Anderson, PA-C's NPI is 1871169003 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 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.