NPI registry status
Active
2026 NPPES data Neurological Surgery Physician NPI 1891424438 PA-C
Verify on CMS → Emily Mason, PA-C
Neurological Surgery Physician in Charleston, South Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,317 in Neurological 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
148
Medicare Part D claims · 81 beneficiaries · Neurological Surgery Physician avg: 189
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$26.22
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Emily Mason, PA-C filed 148 Medicare Part D claims in 2024 as a Neurological Surgery Physician in Charleston, South Carolina, prescribing 91% generic.
- 148
- Part D claims, 2024
- 91%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥34th
- 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 Emily Mason, PA-C
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 1891424438), first enumerated 06/08/2022.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 148 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
$26.22 in reported industry payments (1 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 1891424438 · Neurological Surgery Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1891424438
- ENUM-RECENT 2022
- TAX-MID 8K Neurological Surgery
- RX-LIGHT 148
- BOOK-THIN 125 in South Carolina
- PHOTO-ENUM Samantha Nunez · 2022
Emily Mason, PA-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
148 ≥ 34th percentile 34% of 1,416,883 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 · 2024
✓
Board certification likely (heuristic, not verified)
Emily Mason, PA-C 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 Emily Mason, PA-C?
Quality data not reportedPrimary specialty
Neurological Surgery Physician
Medicare Part D claims
148 22% vs specialty avg
Specialty distribution in South Carolina
How Neurological Surgery Physician compares to other specialties among South Carolina 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 Neurological 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 | 1891424438 |
|---|---|
| Specialty | Neurological Surgery Physician |
| Credentials | PA-C |
| Gender | Female |
| NPI Issued | 06/08/2022 |
Hospital and facility affiliations
Facilities where Emily Mason, 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.
University Medical Associates OF The Medical University OF South Carol
Charleston, SC
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 Emily Mason, PA-C. Source: openpaymentsdata.cms.gov.
Total received
$26
Largest payer
Route 92 Medical, 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 · Generic-heavy
Emily Mason, PA-C - brand share 9.0%
Neurological Surgery Physician average
9% brand-name claims vs 91% generic, on 148 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.
148
Total Claims
$12K
Total Drug Cost
81
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 200.9
- Total Day Supply
- 4,760
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $10K
- Generic Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 67.9 years
- Avg HCC Risk Score
- 1.72
- Gender Split
- 75% female / 25% male
- Age Distribution
- <65: 16, 65-74: 43, 75-84: 22, 85+: 0
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Emily Mason, PA-C prescribes most
Top Medicare Part D drugs by claim count, 2024
- Clopidogrel
Clopidogrel
30 claims
- Brilinta
Brilinta
14 claims
- Gabapentin
Gabapentin
13 claims
- Tizanidine Hcl
Tizanidine Hcl
13 claims
- Prasugrel Hcl 11
Prasugrel Hcl
11 claims
| Drug | Claims |
|---|---|
| Clopidogrel Clopidogrel Bisulfate | 30 |
| Brilinta Ticagrelor | 14 |
| Gabapentin | 13 |
| Tizanidine Hcl | 13 |
| Prasugrel Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Neurological Surgery Physician Overview
How Emily Mason, PA-C fits within the Neurological Surgery Physician landscape nationally.
8,317
Neurological Surgery Physician Providers in US
53
States with Neurological Surgery Physician
189
Avg Claims per Provider
Emily Mason, PA-C's 148 claims are below the specialty average of 189.
Nationwide Neurological Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Mason, both outside South Carolina so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2022)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Neurological Surgery Physician Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Mason.
One of 125 Neurological Surgery Physician providers enrolled in South Carolina, 5 are shown here.
Jeremy Adkins
Spartanburg, SC
Dr. Mohammed Alshareef
M.D.
Charleston, SC
Dr. Thomas Anderson
MD
Mt Pleasant, SC
Dr. Samuel Asante
M.D
Greenville, SC
Dr. Anthony Asher
MD
Columbia, SC
Compare Neurological Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Emily Mason, PA-C's specialty? ▼
Emily Mason, PA-C specializes in Neurological Surgery Physician and practices in Charleston, South Carolina. Credentials: PA-C.
How much does Emily Mason, PA-C prescribe under Medicare Part D? ▼
In 2024, Emily Mason, PA-C wrote 148 Medicare Part D claims totaling $12K in drug costs for 81 beneficiaries.
Where is Emily Mason, PA-C located? ▼
Emily Mason, PA-C is located at 171 ASHLEY AVE, Charleston, SC, 29425. Phone: (843) 792-1414.
What is Emily Mason, PA-C's NPI number? ▼
Emily Mason, PA-C's National Provider Identifier (NPI) is 1891424438, issued on 06/08/2022.
Does Emily Mason, PA-C prescribe more brand-name or generic drugs? ▼
Emily Mason, PA-C's prescribing is 9% brand-name and 91% generic drugs by claim count, with $10K in brand drug costs.
How many Neurological Surgery Physician providers are there in the US? ▼
There are 8,317 Neurological Surgery Physician providers across 53 states in the US. The average Neurological Surgery Physician provider writes 189 Medicare Part D claims per year.
What drugs does Emily Mason, PA-C prescribe most often? ▼
Based on 2024 Medicare Part D data, Emily Mason, PA-C's most frequently prescribed drugs include Clopidogrel, Brilinta, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Emily Mason, PA-C accept Medicare? ▼
Emily Mason, PA-C appears in CMS Medicare data with 148 Part D claims and 81 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Emily Mason, PA-C's credentials? ▼
Emily Mason, PA-C's NPI is 1891424438 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.
- 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.