NPI registry status
Active
2026 NPPES data Medical Physician Assistant NPI 1144301458 PAC
Verify on CMS → Ashley Larsen, PAC
Medical Physician Assistant in Ocean Springs, Mississippi.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 40,580 in Medical 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
861
Medicare Part D claims · 199 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
56%
generic claims · 44% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.9K
97 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
Ashley Larsen, PAC filed 861 Medicare Part D claims in 2023 as a Medical Physician Assistant in Ocean Springs, Mississippi, prescribing 56% generic.
- 861
- Part D claims, 2023
- 56%
- generic prescribing
- $1.9K
- 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.
Ashley Larsen, PAC's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
861 Top 27% higher than 73% 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 Ashley Larsen, PAC?
Quality data not reportedPrimary specialty
Medical Physician Assistant
Medicare Part D claims
861 20% vs specialty avg
Specialty distribution in Mississippi
How Medical Physician Assistant compares to other specialties among Mississippi 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 Medical 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).
Ashley Larsen, PAC appears in the CMS NPPES registry as a Medical Physician Assistant provider holding PAC credentials at 2A DOCTORS DR, Ocean Springs, MS, 39564, with a listed phone of (228) 872-1951. NPI 1144301458 was issued on 10/17/2006.
Medicare Part D records for calendar year 2023 show 861 prescription claims written by this provider, covering 199 Medicare beneficiaries and totaling roughly $223K in drug spend, split 44% brand-name and 56% generic by claim count.
Medical Physician Assistant is a mid-sized specialty nationwide, with 40,580 enrolled providers across 55 states and an average of 1,077 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 | 1144301458 |
|---|---|
| Specialty | Medical Physician Assistant |
| Credentials | PAC |
| Gender | Female |
| NPI Issued | 10/17/2006 |
Hospital and facility affiliations
Facilities where Ashley Larsen, PAC 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.
Singing River Health System
★☆☆☆☆ 1/5
Ocean Springs, MS
Acute Care Hospitals
CMS CCN: 250040
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 Ashley Larsen, PAC. Source: openpaymentsdata.cms.gov.
Total received
$1.9K
Largest payer
Boehringer Ingelheim Pharmaceuticals, 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 · Above average
Ashley Larsen, PAC - brand share 44.0%
Medical Physician Assistant average
44% brand-name claims vs 56% generic, on 861 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.
861
Total Claims
$223K
Total Drug Cost
199
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,199
- Total Day Supply
- 33,309
- Brand vs Generic
- 44% brand / 56% generic
- Brand Drug Cost
- $209K
- Generic Drug Cost
- $14K
- Antibiotic Claims
- 48
Patient Demographics
- Average Patient Age
- 69.8 years
- Avg HCC Risk Score
- 1.76
- Gender Split
- 64% female / 36% male
- Age Distribution
- <65: 39, 65-74: 98, 75-84: 50, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Ashley Larsen, PAC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Albuterol Sulfate …
Albuterol Sulfate Hfa
137 claims
- Trelegy Ellipta
Trelegy Ellipta
113 claims
- Fluticasone Propio…
Fluticasone Propionate
107 claims
- Montelukast Sodium
Montelukast Sodium
62 claims
- Breo Ellipta 45
Breo Ellipta
45 claims
- Prednisone 41
Prednisone
41 claims
- Azithromycin 31
Azithromycin
31 claims
- Spiriva Respimat 31
Spiriva Respimat
31 claims
| Drug | Claims |
|---|---|
| Albuterol Sulfate Hfa Albuterol Sulfate | 137 |
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 113 |
| Fluticasone Propionate | 107 |
| Montelukast Sodium | 62 |
| Breo Ellipta Fluticasone/Vilanterol | 45 |
| Prednisone | 41 |
| Azithromycin | 31 |
| Spiriva Respimat Tiotropium Bromide | 31 |
| Stiolto Respimat Tiotropium Br/Olodaterol Hcl | 31 |
| Symbicort Budesonide/Formoterol Fumarate | 30 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Medical Physician Assistant Overview
How Ashley Larsen, PAC fits within the Medical Physician Assistant landscape nationally.
40,580
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,077
Avg Claims per Provider
Ashley Larsen, PAC's 861 claims are below the specialty average of 1,077.
Nearby Medical Physician Assistant Providers in Mississippi
Other clinicians with the same primary specialty enrolled in Mississippi, drawn from the same CMS NPPES roster as Larsen.
Dr. Mary Adams
PA-C
Ocean Springs, MS
Dr. Dean Adkins
PA
Tupelo, MS
Dr. Jenna Ainsworth
PA-C
Flowood, MS
Dr. Cassie Allred
PA-C
Holly Springs, MS
Dr. Heather Anderson
PA-C
Vicksburg, MS
Compare Medical 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 Mississippi medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Medical 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Mississippi
Frequently Asked Questions
What is Ashley Larsen, PAC's specialty? ▼
Ashley Larsen, PAC specializes in Medical Physician Assistant and practices in Ocean Springs, Mississippi. Credentials: PAC.
How much does Ashley Larsen, PAC prescribe under Medicare Part D? ▼
In 2023, Ashley Larsen, PAC wrote 861 Medicare Part D claims totaling $223K in drug costs for 199 beneficiaries.
Where is Ashley Larsen, PAC located? ▼
Ashley Larsen, PAC is located at 2A DOCTORS DR, Ocean Springs, MS, 39564. Phone: (228) 872-1951.
What is Ashley Larsen, PAC's NPI number? ▼
Ashley Larsen, PAC's National Provider Identifier (NPI) is 1144301458, issued on 10/17/2006.
Does Ashley Larsen, PAC prescribe more brand-name or generic drugs? ▼
Ashley Larsen, PAC's prescribing is 44% brand-name and 56% generic drugs by claim count, with $209K in brand drug costs.
How many Medical Physician Assistant providers are there in the US? ▼
There are 40,580 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,077 Medicare Part D claims per year.
What drugs does Ashley Larsen, PAC prescribe most often? ▼
Based on 2023 Medicare Part D data, Ashley Larsen, PAC's most frequently prescribed drugs include Albuterol Sulfate Hfa, Trelegy Ellipta, Fluticasone Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ashley Larsen, PAC accept Medicare? ▼
Ashley Larsen, PAC appears in CMS Medicare data with 861 Part D claims and 199 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ashley Larsen, PAC's credentials? ▼
Ashley Larsen, PAC's NPI is 1144301458 with credentials PAC. 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.