2026 NPPES data Specialist NPI 1154334464 MD
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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 69,658 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
3K
Medicare Part D claims · 314 beneficiaries · Specialist avg: 1K
Generic prescribing
74%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$11.2K
131 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Carl Dukes, MD filed 3,253 Medicare Part D claims in 2023 as a Specialist in San Antonio, Texas, prescribing 74% generic.

3K
Part D claims, 2023
74%
generic prescribing
$11.2K
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.

Carl Dukes, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

3,253 Top 11% higher than 89% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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 Carl Dukes, MD?

Quality data not reported

NPI registry status

Active

Issued 08/15/2006

NPI 1154334464

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

3,253 121% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Texas

How Specialist compares to other specialties among Texas providers

Texas providers
Behavior Technician - 5.6%Behavior Technician5.6%Student in an Organized Health Care Education/Training Program - 5.1%Student in an Organized Health Care Education/Training Program5.1%Family Nurse Practitioner - 4.5%Family Nurse Practitioner4.5%Professional Counselor - 4.4%Professional Counselor4.4%Pharmacist - 4.4%Pharmacist4.4%Speech-Language Pathologist - 3.9%Speech-Language Pathologist3.9%Specialist - 0.6%Specialist0.6%
Largest specialties in Texas (% of in-state 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:

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).

Carl Dukes, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 2011 E HOUSTON ST, San Antonio, TX, 78202, with a listed phone of (210) 227-1717. NPI 1154334464 was issued on 08/15/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Dukes most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 3,253 prescription claims written by this provider, covering 314 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 24% brand-name and 74% generic by claim count, with an opioid prescribing rate of 0.4%. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

2011 E HOUSTON ST
San Antonio, TX 78202

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 · Typical

Carl Dukes, MD - brand share 24.0%
Specialist average

24% brand-name claims vs 74% generic, on 3,253 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.

3,253
Total Claims
$1.2M
Total Drug Cost
314
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,205
Total Day Supply
180,625
Brand vs Generic
24% brand / 74% generic
Brand Drug Cost
$1.1M
Generic Drug Cost
$107K
Opioid Claims
12 (0.4% rate)
Antibiotic Claims
42

Patient Demographics

Average Patient Age
70.8 years
Avg HCC Risk Score
3.74
Gender Split
62% female / 38% male
Age Distribution
<65: 68, 65-74: 134, 75-84: 81, 85+: 31

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Carl Dukes, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Farxiga
Dapagliflozin Propanediol
179
Carvedilol
173
Sevelamer Carbonate
131
Nifedipine Er
Nifedipine
123
Amlodipine Besylate
114
Losartan Potassium
104
Clinisol
Parenteral Amino Acid 15% No.5
102
Allopurinol
92
Irbesartan
79
Atorvastatin Calcium
70

* 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.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

Carl Dukes, MD's 3,253 claims are above the specialty average of 1,474.

Nearby Specialist Providers in Texas

Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Dukes.

Compare Specialist 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 Specialist 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.

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 2023, Carl Dukes, MD wrote 3,253 Medicare Part D claims totaling $1.2M in drug costs for 314 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 24% 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 12 opioid claims in 2023 with an opioid prescribing rate of 0.4%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Carl Dukes, MD prescribe most often?
Based on 2023 Medicare Part D data, Carl Dukes, MD's most frequently prescribed drugs include Farxiga, Carvedilol, Sevelamer Carbonate. 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 3,253 Part D claims and 314 Medicare beneficiaries in 2023. 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

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.