NPI registry status
Active
2026 NPPES data Specialist NPI 1154334464 MD
Verify on CMS → Carl Dukes, MD
Specialist 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 69,567 in Specialist, 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
4K
Medicare Part D claims · 339 beneficiaries · Specialist avg: 2K
Generic prescribing
74%
generic claims · 25% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$11.2K
131 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Carl Dukes, MD filed 3,670 Medicare Part D claims in 2024 as a Specialist in San Antonio, Texas, prescribing 74% generic.
- 4K
- Part D claims, 2024
- 74%
- generic prescribing
- $11.2K
- industry payments (Sunshine Act)
- ≥90th
- 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 Carl Dukes, MD
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 1154334464), first enumerated 08/15/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 3,670 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
- Reported
Industry payment transparency
$11.2K in reported industry payments (131 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- State context
State board disciplinary context
Texas statewide board action statistics are published annually — these figures describe aggregate state activity, not Carl Dukes, MD's individual license status. Verify directly with the state medical board.
Source: TMB annual report 2023
- 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 1154334464 · Specialist
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1154334464
- ENUM-LEGACY 2006
- TAX-MEGA 70K Specialist
- RX-MID 3,670
- BOOK-LIGHT 2,380 in Texas
- PHOTO-ENUM Carl Heise · 2006
Carl Dukes, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
3,670 ≥ 90th percentile 90% 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 Carl Dukes, MD?
Quality data not reportedPrimary specialty
Specialist
Medicare Part D claims
3,670 141% vs specialty avg
Specialty distribution in Texas
How Specialist 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 Specialist. 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 | 1154334464 |
|---|---|
| Specialty | Specialist |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 08/15/2006 |
Hospital and facility affiliations
Facilities where Carl Dukes, 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.
M Reza Mizani MD PA
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 Carl Dukes, MD. Source: openpaymentsdata.cms.gov.
Total received
$11.2K
Largest payer
AstraZeneca Pharmaceuticals LP
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 Carl Dukes, MD. To verify Carl Dukes, 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
Carl Dukes, MD - brand share 25.0%
Specialist average
25% brand-name claims vs 74% generic, on 3,670 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.
3,670
Total Claims
$1.2M
Total Drug Cost
339
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,247.633
- Total Day Supply
- 213,226
- Brand vs Generic
- 25% brand / 74% generic
- Brand Drug Cost
- $1.1M
- Generic Drug Cost
- $87K
- Opioid Claims
- 17 (0.5% rate)
- Antibiotic Claims
- 38
Patient Demographics
- Average Patient Age
- 71.6 years
- Avg HCC Risk Score
- 3.40
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 64, 65-74: 130, 75-84: 114, 85+: 31
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Carl Dukes, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Farxiga
Farxiga
203 claims
- Carvedilol
Carvedilol
190 claims
- Amlodipine Besylate
Amlodipine Besylate
153 claims
- Allopurinol
Allopurinol
138 claims
- Losartan Potassium
Losartan Potassium
110 claims
- Nifedipine Er
Nifedipine Er
106 claims
- Irbesartan
Irbesartan
103 claims
- Rayaldee
Rayaldee
95 claims
| Drug | Claims |
|---|---|
| Farxiga Dapagliflozin Propanediol | 203 |
| Carvedilol | 190 |
| Amlodipine Besylate | 153 |
| Allopurinol | 138 |
| Losartan Potassium | 110 |
| Nifedipine Er Nifedipine | 106 |
| Irbesartan | 103 |
| Rayaldee Calcifediol | 95 |
| Kerendia Finerenone | 82 |
| Atorvastatin Calcium | 80 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Carl Dukes, MD fits within the Specialist landscape nationally.
69,567
Specialist Providers in US
55
States with Specialist
1,524
Avg Claims per Provider
Carl Dukes, MD's 3,670 claims are above the specialty average of 1,524.
Nationwide Specialist peers with similar MIPS or enrollment year
Two federal-record peer sets for Dukes, both outside Texas 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 Specialist Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Dukes.
One of 2,380 Specialist providers enrolled in Texas, 5 are shown here.
Beverly Abbott
Longview, TX
Dr. Magdy Abdelsayed
M.D.
Baytown, TX
Robin Abels
OTR
Carrollton, TX
Dr. Amr Abouleish
M.D.
Galveston, TX
Paul Abrell
ATC, L
El Paso, TX
Compare Specialist nationally: see state-by-state distribution →
Frequently Asked Questions
What is Carl Dukes, MD's specialty? ▼
Carl Dukes, MD specializes in Specialist and practices in San Antonio, Texas. Credentials: MD.
How much does Carl Dukes, MD prescribe under Medicare Part D? ▼
In 2024, Carl Dukes, MD wrote 3,670 Medicare Part D claims totaling $1.2M in drug costs for 339 beneficiaries.
Where is Carl Dukes, MD located? ▼
Carl Dukes, MD is located at 2011 E HOUSTON ST, San Antonio, TX, 78202. Phone: (210) 227-1717.
What is Carl Dukes, MD's NPI number? ▼
Carl Dukes, MD's National Provider Identifier (NPI) is 1154334464, issued on 08/15/2006.
Does Carl Dukes, MD prescribe more brand-name or generic drugs? ▼
Carl Dukes, MD's prescribing is 25% brand-name and 74% generic drugs by claim count, with $1.1M in brand drug costs.
Does Carl Dukes, MD prescribe opioids? ▼
Yes, Carl Dukes, MD had 17 opioid claims in 2024 with an opioid prescribing rate of 0.5%.
How many Specialist providers are there in the US? ▼
There are 69,567 Specialist providers across 55 states in the US. The average Specialist provider writes 1,524 Medicare Part D claims per year.
What drugs does Carl Dukes, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Carl Dukes, MD's most frequently prescribed drugs include Farxiga, Carvedilol, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Carl Dukes, MD accept Medicare? ▼
Carl Dukes, MD appears in CMS Medicare data with 3,670 Part D claims and 339 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Carl Dukes, MD's credentials? ▼
Carl Dukes, MD's NPI is 1154334464 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 (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.