NPI registry status
Active
2026 NPPES data Colon & Rectal Surgery Physician NPI 1225226327 M.D.
Verify on CMS → Jason Aston, M.D.
Colon & Rectal Surgery Physician in Nashville, Tennessee.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,611 in Colon & Rectal Surgery 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
265
Medicare Part D claims · 158 beneficiaries · Colon & Rectal Surgery Physician avg: 196
Generic prescribing
77%
generic claims · 23% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$376.99
42 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Jason Aston, M.D. filed 265 Medicare Part D claims in 2023 as a Colon & Rectal Surgery Physician in Nashville, Tennessee, prescribing 77% generic.
- 265
- Part D claims, 2023
- 77%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥49th
- 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 Jason Aston, M.D.
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 1225226327), first enumerated 10/15/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 265 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- 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
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$376.99 in reported industry payments (42 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 1225226327 · Colon & Rectal Surgery Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1225226327
- ENUM-MID 2007
- TAX-NARROW 1,611
- RX-LIGHT 265
- BOOK-THIN 25 in Tennessee
- PHOTO-ENUM Julie Lorber · 2007
Jason Aston, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
265 ≥ 49th percentile 49% of 1,370,886 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 · 2023
✓
Board certification likely (heuristic, not verified)
Jason Aston, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - 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 Jason Aston, M.D.?
Quality data not reportedPrimary specialty
Colon & Rectal Surgery Physician
Medicare Part D claims
265 35% vs specialty avg
Specialty distribution in Tennessee
How Colon & Rectal Surgery Physician compares to other specialties among Tennessee 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 Colon & Rectal Surgery Physician. 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 | 1225226327 |
|---|---|
| Specialty | Colon & Rectal Surgery Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 10/15/2007 |
Hospital and facility affiliations
Facilities where Jason Aston, M.D. 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.
Advanced Diagnostic Imaging PC
Nashville, TN
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 Jason Aston, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$377
Largest payer
Braintree Laboratories, 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.
Brand vs generic prescribing mix · Typical
Jason Aston, M.D. - brand share 23.0%
Colon & Rectal Surgery Physician average
23% brand-name claims vs 77% generic, on 265 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.
265
Total Claims
$14K
Total Drug Cost
158
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 269
- Total Day Supply
- 2,405
- Brand vs Generic
- 23% brand / 77% generic
- Brand Drug Cost
- $11K
- Generic Drug Cost
- $4K
- Opioid Claims
- 81 (30.6% rate)
- Antibiotic Claims
- 69
Patient Demographics
- Average Patient Age
- 71.6 years
- Avg HCC Risk Score
- 1.24
- Gender Split
- 61% female / 39% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Jason Aston, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone-Acetamin…
Oxycodone-Acetaminophen
71 claims
- Sutab
Sutab
50 claims
- Hydrocortisone
Hydrocortisone
33 claims
- Neomycin Sulfate 27
Neomycin Sulfate
27 claims
- Erythromycin 19
Erythromycin
19 claims
- Amoxicillin-Clavul… 11
Amoxicillin-Clavulanate Potass
11 claims
| Drug | Claims |
|---|---|
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 71 |
| Sutab Sod Sulf/Pot Chloride/Mag Sulf | 50 |
| Hydrocortisone | 33 |
| Neomycin Sulfate | 27 |
| Erythromycin Erythromycin Base | 19 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Colon & Rectal Surgery Physician Overview
How Jason Aston, M.D. fits within the Colon & Rectal Surgery Physician landscape nationally.
1,611
Colon & Rectal Surgery Physician Providers in US
50
States with Colon & Rectal Surgery Physician
196
Avg Claims per Provider
Jason Aston, M.D.'s 265 claims are above the specialty average of 196.
Nationwide Colon & Rectal Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Aston, both outside Tennessee so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Colon & Rectal Surgery Physician Providers in Tennessee
Other clinicians with the same primary specialty enrolled in Tennessee, drawn from the same CMS NPPES roster as Aston.
One of 25 Colon & Rectal Surgery Physician providers enrolled in Tennessee, 5 are shown here.
Dr. Aaron Arroyave
MD
Kingsport, TN
Dr. James Baker
MD
Knoxville, TN
Dr. David Beck
MD
Nashville, TN
Dr. Susan Briley
MD
Nashville, TN
Dr. Abner Glover
M.D.
Knoxville, TN
Compare Colon & Rectal Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Jason Aston, M.D.'s specialty? ▼
Jason Aston, M.D. specializes in Colon & Rectal Surgery Physician and practices in Nashville, Tennessee. Credentials: M.D..
How much does Jason Aston, M.D. prescribe under Medicare Part D? ▼
In 2023, Jason Aston, M.D. wrote 265 Medicare Part D claims totaling $14K in drug costs for 158 beneficiaries.
Where is Jason Aston, M.D. located? ▼
Jason Aston, M.D. is located at 345 23RD AVE N, Nashville, TN, 37203. Phone: (615) 342-5740.
What is Jason Aston, M.D.'s NPI number? ▼
Jason Aston, M.D.'s National Provider Identifier (NPI) is 1225226327, issued on 10/15/2007.
Does Jason Aston, M.D. prescribe more brand-name or generic drugs? ▼
Jason Aston, M.D.'s prescribing is 23% brand-name and 77% generic drugs by claim count, with $11K in brand drug costs.
Does Jason Aston, M.D. prescribe opioids? ▼
Yes, Jason Aston, M.D. had 81 opioid claims in 2023 with an opioid prescribing rate of 30.6%.
How many Colon & Rectal Surgery Physician providers are there in the US? ▼
There are 1,611 Colon & Rectal Surgery Physician providers across 50 states in the US. The average Colon & Rectal Surgery Physician provider writes 196 Medicare Part D claims per year.
What drugs does Jason Aston, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Jason Aston, M.D.'s most frequently prescribed drugs include Oxycodone-Acetaminophen, Sutab, Hydrocortisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jason Aston, M.D. accept Medicare? ▼
Jason Aston, M.D. appears in CMS Medicare data with 265 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 Jason Aston, M.D.'s credentials? ▼
Jason Aston, M.D.'s NPI is 1225226327 with credentials M.D.. 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.
- 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 May 2026.