NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1730360546 PA-C
Verify on CMS → Aaron Ast, PA-C
Physician Assistant in Bend, 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 156,084 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
176
Medicare Part D claims · 115 beneficiaries · Physician Assistant avg: 832
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
88.6/100
▲ 5 pts above national avg 83.5 · Above neutral
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Aaron Ast, PA-C reported a CMS MIPS final score of 88.6/100 - above the 83.5 national average - and filed 176 Medicare Part D claims in 2024.
- 88.6/100
- MIPS score · +5 vs avg
- 176
- Part D claims, 2024
- 93%
- generic prescribing
- ≥54th
- 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 Aaron Ast, PA-C
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 1730360546), first enumerated 11/20/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 176 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 88.6/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- 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 1730360546 · Physician Assistant
NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ABOVE · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1730360546
- ENUM-MID 2007
- TAX-MEGA 156K Physician Assistant
- MIPS-ABOVE 88.6/100
- RX-LIGHT 176
- BOOK-LIGHT 1,988 in Oregon
- PHOTO-FINISH Kailey Aksel · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Ast · this provi…
Ast · this provider
88.6 MIPS pts
- James Frederick …
James Frederick
88.6 MIPS pts
- Kailey Aksel · n…
Kailey Aksel
88.6 MIPS pts
- Rodger Anders · …
Rodger Anders
88.6 MIPS pts
- Colleen August ·…
Colleen August
88.6 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Aaron Ast, PA-C'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.
89 ≥ 54th percentile 54% 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 Aaron Ast, PA-C sits
This provider among physician assistant peers
Across the 26,497 physician assistant providers who report both Medicare Part D prescribing and a MIPS quality score, Aaron Ast, PA-C writes more Part D claims than 41% of them and scores higher on MIPS quality than 54% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one physician assistant peer from a representative sample of 60; the gold marker is Aaron Ast, 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 Aaron Ast, PA-C?
High performer (top quartile)Primary specialty
Physician Assistant
Medicare Part D claims
176 79% vs specialty avg
MIPS final score
88.6/100 5.1 pts vs avg
Specialty distribution in Oregon
How Physician Assistant compares to other specialties among Oregon providers
Medicare quality performance, MIPS
Aaron Ast, PA-C's 2023 MIPS final score plotted against the Physician Assistant national average
- MIPS Final Score
- 88.6/100
- 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 | 1730360546 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Male |
| NPI Issued | 11/20/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
88.614
Final Score
Measured-score avg: 83.5
86.6047
Quality
Reporting: Group practice
Brand vs generic prescribing mix · Generic-heavy
Aaron Ast, PA-C - brand share 7.0%
Physician Assistant average
7% brand-name claims vs 93% generic, on 176 2024 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 2024.
176
Total Claims
$5K
Total Drug Cost
115
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 176
- Total Day Supply
- 1,319
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $3K
- Generic Drug Cost
- $2K
- Opioid Claims
- 35 (19.9% rate)
- Antibiotic Claims
- 47
Patient Demographics
- Average Patient Age
- 70.0 years
- Avg HCC Risk Score
- 1.62
- Gender Split
- 61% female / 39% male
- Age Distribution
- <65: 19, 65-74: 57, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 26 |
| Cephalexin | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Aaron Ast, PA-C fits within the Physician Assistant landscape nationally.
156,084
Physician Assistant Providers in US
56
States with Physician Assistant
832
Avg Claims per Provider
Aaron Ast, PA-C's 176 claims are below the specialty average of 832.
Nationwide Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Ast, both outside Oregon so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (88.6 here).
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Physician Assistant Providers in Oregon
Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as Ast.
One of 1,988 Physician Assistant providers enrolled in Oregon, 5 are shown here.
Matthew Abbott
PA-C
Portland, OR
Sanyi Yoseph Abdissa
Hermiston, OR
Emad Aboujaoude
PA
Portland, OR
Dr. Christopher Accola
PHARMD
Springfield, OR
Erika Acuna
PA-C
Portland, OR
Compare Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Aaron Ast, PA-C's specialty? ▼
Aaron Ast, PA-C specializes in Physician Assistant and practices in Bend, Oregon. Credentials: PA-C.
How much does Aaron Ast, PA-C prescribe under Medicare Part D? ▼
In 2024, Aaron Ast, PA-C wrote 176 Medicare Part D claims totaling $5K in drug costs for 115 beneficiaries.
What is Aaron Ast, PA-C's Medicare quality score? ▼
Aaron Ast, PA-C has a CMS MIPS Final Score of 88.6/100 (Quality: 86.6). 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 Aaron Ast, PA-C located? ▼
Aaron Ast, PA-C is located at 2200 NE NEFF RD STE 200, Bend, OR, 97701. Phone: (541) 382-3344.
What is Aaron Ast, PA-C's NPI number? ▼
Aaron Ast, PA-C's National Provider Identifier (NPI) is 1730360546, issued on 11/20/2007.
Does Aaron Ast, PA-C prescribe more brand-name or generic drugs? ▼
Aaron Ast, PA-C's prescribing is 7% brand-name and 93% generic drugs by claim count, with $3K in brand drug costs.
Does Aaron Ast, PA-C prescribe opioids? ▼
Yes, Aaron Ast, PA-C had 35 opioid claims in 2024 with an opioid prescribing rate of 19.9%.
How many Physician Assistant providers are there in the US? ▼
There are 156,084 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 832 Medicare Part D claims per year.
What drugs does Aaron Ast, PA-C prescribe most often? ▼
Based on 2024 Medicare Part D data, Aaron Ast, PA-C's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Cephalexin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Aaron Ast, PA-C accept Medicare? ▼
Aaron Ast, PA-C appears in CMS Medicare data with 176 Part D claims and 115 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Aaron Ast, PA-C's credentials? ▼
Aaron Ast, PA-C's NPI is 1730360546 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.
- 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 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.