NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1104523141 PA-C
Verify on CMS → Courtney McMahon, PA-C
Physician Assistant in Indianapolis, Indiana.
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
26
Medicare Part D claims · Physician Assistant avg: 790
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Courtney McMahon, PA-C filed 26 Medicare Part D claims in 2023 as a Physician Assistant in Indianapolis, Indiana, prescribing 54% generic.
- 26
- Part D claims, 2023
- 54%
- generic prescribing
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.
Courtney McMahon, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
26 0th percentile higher than 0% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Courtney McMahon, PA-C?
Quality data not reportedPrimary specialty
Physician Assistant
Medicare Part D claims
26 97% vs specialty avg
Specialty distribution in Indiana
How Physician Assistant compares to other specialties among Indiana 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 Physician 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).
Courtney McMahon, PA-C appears in the CMS NPPES registry as a Physician Assistant provider holding PA-C credentials at 705 RILEY HOSPITAL DR, Indianapolis, IN, 46202, with a listed phone of (317) 944-9981. NPI 1104523141 was issued on 02/09/2023.
Medicare Part D records for calendar year 2023 show 26 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $6K in drug spend, split 46% brand-name and 54% generic by claim count, with an opioid prescribing rate of 65.4%.
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 | 1104523141 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 02/09/2023 |
Brand vs generic prescribing mix · Above average
Courtney McMahon, PA-C - brand share 46.0%
Physician Assistant average
46% brand-name claims vs 54% generic, on 26 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.
26
Total Claims
$6K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 26
- Total Day Supply
- 762
- Brand vs Generic
- 46% brand / 54% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $591
- Opioid Claims
- 17 (65.4% rate)
Patient Demographics
- Average Patient Age
- 21.0 years
- Avg HCC Risk Score
- 0.81
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Methadone Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Courtney McMahon, 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
Courtney McMahon, PA-C's 26 claims are below the specialty average of 790.
Nearby Physician Assistant Providers in Indiana
Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as McMahon.
Dr. Mary Abbas
PA-C
Indianapolis, IN
Dr. Alexandra Abbey
PA-C
Indianapolis, IN
Dr. Mackenzie Accorsi
PA-C
La Porte, IN
Dr. Anna Ackermann
PA-C
Indianapolis, IN
Dr. Joshua Ackermann
PA-C
Indianapolis, IN
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 Indiana 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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Medical Specialties Explained
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Understanding Medicare Claims Data
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How insurance networks affect your costs
Telehealth Guide
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Explore Indiana
Frequently Asked Questions
What is Courtney McMahon, PA-C's specialty? ▼
Courtney McMahon, PA-C specializes in Physician Assistant and practices in Indianapolis, Indiana. Credentials: PA-C.
How much does Courtney McMahon, PA-C prescribe under Medicare Part D? ▼
In 2023, Courtney McMahon, PA-C wrote 26 Medicare Part D claims totaling $6K in drug costs for N/A beneficiaries.
Where is Courtney McMahon, PA-C located? ▼
Courtney McMahon, PA-C is located at 705 RILEY HOSPITAL DR, Indianapolis, IN, 46202. Phone: (317) 944-9981.
What is Courtney McMahon, PA-C's NPI number? ▼
Courtney McMahon, PA-C's National Provider Identifier (NPI) is 1104523141, issued on 02/09/2023.
Does Courtney McMahon, PA-C prescribe more brand-name or generic drugs? ▼
Courtney McMahon, PA-C's prescribing is 46% brand-name and 54% generic drugs by claim count, with $6K in brand drug costs.
Does Courtney McMahon, PA-C prescribe opioids? ▼
Yes, Courtney McMahon, PA-C had 17 opioid claims in 2023 with an opioid prescribing rate of 65.4%.
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 Courtney McMahon, PA-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Courtney McMahon, PA-C's most frequently prescribed drugs include Methadone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Courtney McMahon, PA-C accept Medicare? ▼
Courtney McMahon, PA-C appears in CMS Medicare data with 26 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Courtney McMahon, PA-C's credentials? ▼
Courtney McMahon, PA-C's NPI is 1104523141 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.
- 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.