NPI registry status
Active
2026 NPPES data Epilepsy Physician NPI 1548277866 MD
Verify on CMS → Charles Szabo, MD
Epilepsy Physician in San Antonio, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 352 in Epilepsy 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
2K
Medicare Part D claims · 209 beneficiaries · Epilepsy Physician avg: 878
Generic prescribing
72%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$541.01
14 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
Charles Szabo, MD filed 2,282 Medicare Part D claims in 2023 as a Epilepsy Physician in San Antonio, Texas, prescribing 72% generic.
- 2K
- Part D claims, 2023
- 72%
- generic prescribing
- Likely
- board-certified (heuristic)
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.
Charles Szabo, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
2,282 Top 15% higher than 85% 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
✓
Board certification likely (heuristic, not verified)
Charles Szabo, MD 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 Charles Szabo, MD?
Quality data not reportedPrimary specialty
Epilepsy Physician
Medicare Part D claims
2,282 160% vs specialty avg
Specialty distribution in Texas
How Epilepsy Physician compares to other specialties among Texas 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 Epilepsy 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).
Charles Szabo, MD appears in the CMS NPPES registry as an Epilepsy Physician provider holding MD credentials at 8300 FLOYD CURL DR, San Antonio, TX, 78229, with a listed phone of (210) 450-9700. NPI 1548277866 was issued on 08/01/2006.
Medicare Part D records for calendar year 2023 show 2,282 prescription claims written by this provider, covering 209 Medicare beneficiaries and totaling roughly $1.5 million in drug spend, split 26% brand-name and 72% generic by claim count, with an opioid prescribing rate of 0.5%.
Epilepsy Physician is a narrow specialty nationwide, with 352 enrolled providers across 43 states and an average of 878 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 | 1548277866 |
|---|---|
| Specialty | Epilepsy Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/01/2006 |
Hospital and facility affiliations
Facilities where Charles Szabo, MD 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 OF Texas Health Science Center AT San Antonio
San Antonio, TX
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 Charles Szabo, MD. Source: openpaymentsdata.cms.gov.
Total received
$541
Largest payer
Neurelis, 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.
License & disciplinary context - Texas TMB 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~77K Texas medical licensees in 2023 - they are NOT specific to Charles Szabo, MD. To verify Charles Szabo, MD's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Charles Szabo, MD - brand share 26.0%
Epilepsy Physician average
26% brand-name claims vs 72% generic, on 2,282 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.
2,282
Total Claims
$1.5M
Total Drug Cost
209
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,287
- Total Day Supply
- 95,412
- Brand vs Generic
- 26% brand / 72% generic
- Brand Drug Cost
- $1.2M
- Generic Drug Cost
- $299K
- Opioid Claims
- 12 (0.5% rate)
Patient Demographics
- Average Patient Age
- 50.8 years
- Avg HCC Risk Score
- 1.40
- Gender Split
- 50% female / 50% male
- Age Distribution
- <65: 157, 65-74: 40, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Charles Szabo, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lacosamide
Lacosamide
262 claims
- Clobazam
Clobazam
218 claims
- Lamotrigine
Lamotrigine
173 claims
- Levetiracetam
Levetiracetam
160 claims
- Clonazepam
Clonazepam
124 claims
- Briviact 100
Briviact
100 claims
- Zonisamide 90
Zonisamide
90 claims
- Xcopri 85
Xcopri
85 claims
| Drug | Claims |
|---|---|
| Lacosamide | 262 |
| Clobazam | 218 |
| Lamotrigine | 173 |
| Levetiracetam | 160 |
| Clonazepam | 124 |
| Briviact Brivaracetam | 100 |
| Zonisamide | 90 |
| Xcopri Cenobamate | 85 |
| Vimpat Lacosamide | 54 |
| Lorazepam | 53 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Epilepsy Physician Overview
How Charles Szabo, MD fits within the Epilepsy Physician landscape nationally.
352
Epilepsy Physician Providers in US
43
States with Epilepsy Physician
878
Avg Claims per Provider
Charles Szabo, MD's 2,282 claims are above the specialty average of 878.
Nearby Epilepsy Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Szabo.
Dr. Irfan Ali
M.D.
Houston, TX
Dr. Ajlan Alshehri
MD
Houston, TX
Dr. Diep Bui
M.D.
San Antonio, TX
John De Toledo
Lubbock, TX
Dr. Kan Ding
M.D.
Dallas, TX
Compare Epilepsy Physician 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 Texas medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Epilepsy Physician 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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Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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Frequently Asked Questions
What is Charles Szabo, MD's specialty? ▼
Charles Szabo, MD specializes in Epilepsy Physician and practices in San Antonio, Texas. Credentials: MD.
How much does Charles Szabo, MD prescribe under Medicare Part D? ▼
In 2023, Charles Szabo, MD wrote 2,282 Medicare Part D claims totaling $1.5M in drug costs for 209 beneficiaries.
Where is Charles Szabo, MD located? ▼
Charles Szabo, MD is located at 8300 FLOYD CURL DR, San Antonio, TX, 78229. Phone: (210) 450-9700.
What is Charles Szabo, MD's NPI number? ▼
Charles Szabo, MD's National Provider Identifier (NPI) is 1548277866, issued on 08/01/2006.
Does Charles Szabo, MD prescribe more brand-name or generic drugs? ▼
Charles Szabo, MD's prescribing is 26% brand-name and 72% generic drugs by claim count, with $1.2M in brand drug costs.
Does Charles Szabo, MD prescribe opioids? ▼
Yes, Charles Szabo, MD had 12 opioid claims in 2023 with an opioid prescribing rate of 0.5%.
How many Epilepsy Physician providers are there in the US? ▼
There are 352 Epilepsy Physician providers across 43 states in the US. The average Epilepsy Physician provider writes 878 Medicare Part D claims per year.
What drugs does Charles Szabo, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Charles Szabo, MD's most frequently prescribed drugs include Lacosamide, Clobazam, Lamotrigine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Charles Szabo, MD accept Medicare? ▼
Charles Szabo, MD appears in CMS Medicare data with 2,282 Part D claims and 209 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Charles Szabo, MD's credentials? ▼
Charles Szabo, MD's NPI is 1548277866 with credentials MD. 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.