NPI registry status
Active
2026 NPPES data Medical Physician Assistant NPI 1922026046 P.A.
Verify on CMS → Thomas Stewart, P.A.
Medical Physician Assistant in Marion, 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 40,694 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
13K
Medicare Part D claims · 723 beneficiaries · Medical Physician Assistant avg: 1K
Generic prescribing
90%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Thomas Stewart, P.A. filed 13,411 Medicare Part D claims in 2024 as a Medical Physician Assistant in Marion, South Carolina, prescribing 90% generic.
- 13K
- Part D claims, 2024
- 90%
- generic prescribing
- ≥98th
- 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 Thomas Stewart, P.A.
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 1922026046), first enumerated 07/17/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 13,411 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1922026046 · Medical Physician Assistant
NPI-10 · ENUM-LEGACY · TAX-MID · RX-HEAVY · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1922026046
- ENUM-LEGACY 2006
- TAX-MID 41K Medical Physician
- RX-HEAVY 13K claims
- BOOK-LIGHT 521 in South Carolina
- PHOTO-ENUM Howard Carver, PA-C · 2006
Thomas Stewart, P.A.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
13,411 ≥ 98th percentile 98% 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
What does the federal data show about Thomas Stewart, P.A.?
Quality data not reportedPrimary specialty
Medical Physician Assistant
Medicare Part D claims
13,411 12× vs specialty avg
Specialty distribution in South Carolina
How Medical Physician Assistant 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 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).
Practice Address
Provider Details
| NPI | 1922026046 |
|---|---|
| Specialty | Medical Physician Assistant |
| Credentials | P.A. |
| Gender | Male |
| NPI Issued | 07/17/2006 |
Hospital and facility affiliations
Facilities where Thomas Stewart, P.A. 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.
Medical University Hospital Authority
Marion, 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).
Brand vs generic prescribing mix · Generic-heavy
Thomas Stewart, P.A. - brand share 9.0%
Medical Physician Assistant average
9% brand-name claims vs 90% generic, on 13,411 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.
13,411
Total Claims
$826K
Total Drug Cost
723
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 26,181.667
- Total Day Supply
- 766,133
- Brand vs Generic
- 9% brand / 90% generic
- Brand Drug Cost
- $658K
- Generic Drug Cost
- $163K
- Opioid Claims
- 311 (2.3% rate)
- Antibiotic Claims
- 211
Patient Demographics
- Average Patient Age
- 72.6 years
- Avg HCC Risk Score
- 1.18
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 85, 65-74: 334, 75-84: 229, 85+: 75
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Thomas Stewart, P.A. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Atorvastatin Calcium
Atorvastatin Calcium
759 claims
- Amlodipine Besylate
Amlodipine Besylate
685 claims
- Gabapentin
Gabapentin
462 claims
- Hydrochlorothiazide
Hydrochlorothiazide
429 claims
- Metformin Hcl
Metformin Hcl
397 claims
- Lisinopril
Lisinopril
382 claims
- Metoprolol Tartrate
Metoprolol Tartrate
347 claims
- Omeprazole
Omeprazole
316 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 759 |
| Amlodipine Besylate | 685 |
| Gabapentin | 462 |
| Hydrochlorothiazide | 429 |
| Metformin Hcl | 397 |
| Lisinopril | 382 |
| Metoprolol Tartrate | 347 |
| Omeprazole | 316 |
| Levothyroxine Sodium | 274 |
| Furosemide | 273 |
* 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 Thomas Stewart, P.A. fits within the Medical Physician Assistant landscape nationally.
40,694
Medical Physician Assistant Providers in US
55
States with Medical Physician Assistant
1,139
Avg Claims per Provider
Thomas Stewart, P.A.'s 13,411 claims are above the specialty average of 1,139.
Nationwide Medical Physician Assistant peers with similar MIPS or enrollment year
Two federal-record peer sets for Stewart, both outside South Carolina so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Medical Physician Assistant Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Stewart.
One of 521 Medical Physician Assistant providers enrolled in South Carolina, 5 are shown here.
Rana Abedini
PA-C
Greenville, SC
Omotola Adebayo
NP
Seneca, SC
Amy Alexander
PA-C
Columbia, SC
Dyllan Alfaro
Myrtle Beach, SC
Diana Alford
P.A.
Summerville, SC
Compare Medical Physician Assistant nationally: see state-by-state distribution →
Frequently Asked Questions
What is Thomas Stewart, P.A.'s specialty? ▼
Thomas Stewart, P.A. specializes in Medical Physician Assistant and practices in Marion, South Carolina. Credentials: P.A..
How much does Thomas Stewart, P.A. prescribe under Medicare Part D? ▼
In 2024, Thomas Stewart, P.A. wrote 13,411 Medicare Part D claims totaling $826K in drug costs for 723 beneficiaries.
Where is Thomas Stewart, P.A. located? ▼
Thomas Stewart, P.A. is located at 1205 N MAIN ST, Marion, SC, 29571. Phone: (843) 423-0760.
What is Thomas Stewart, P.A.'s NPI number? ▼
Thomas Stewart, P.A.'s National Provider Identifier (NPI) is 1922026046, issued on 07/17/2006.
Does Thomas Stewart, P.A. prescribe more brand-name or generic drugs? ▼
Thomas Stewart, P.A.'s prescribing is 9% brand-name and 90% generic drugs by claim count, with $658K in brand drug costs.
Does Thomas Stewart, P.A. prescribe opioids? ▼
Yes, Thomas Stewart, P.A. had 311 opioid claims in 2024 with an opioid prescribing rate of 2.3%.
How many Medical Physician Assistant providers are there in the US? ▼
There are 40,694 Medical Physician Assistant providers across 55 states in the US. The average Medical Physician Assistant provider writes 1,139 Medicare Part D claims per year.
What drugs does Thomas Stewart, P.A. prescribe most often? ▼
Based on 2024 Medicare Part D data, Thomas Stewart, P.A.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Thomas Stewart, P.A. accept Medicare? ▼
Thomas Stewart, P.A. appears in CMS Medicare data with 13,411 Part D claims and 723 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Thomas Stewart, P.A.'s credentials? ▼
Thomas Stewart, P.A.'s NPI is 1922026046 with credentials P.A.. 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.