NPPES file of Aug 9, 2026

Carl E. Dukes, MD

Nephrology Physician · San Antonio, TX

Carl E. Dukes, MD is a nephrology physician with a practice address in San Antonio, Texas, and NPI 1154334464, issued on Aug 15, 2006. Check the license (Texas F8471, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154334464
Name
Carl E. Dukes
Credential
MD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
F8471 TX
Self-reported in NPPES; status is on the state search
Practice location
2011 E Houston St, San Antonio, TX 78202
Phone
(210) 227-1717
Enumerated
Aug 15, 2006
Record last updated
Jun 3, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(210) 226-2132
Medicaid ID
00CU242 TX
Medicare enrollment
Enrolled (PECOS I20050413001200); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 1976
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2011 E Houston St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Leo Edwards, M.D.Internal Medicine Physician1750313441
  2. Christine Mitchell, DNP, APRN, FNP-CFamily Nurse Practitioner1295219145

Verify Carl E. Dukes in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license F8471
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

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2.5 times the Medicare Part D claims of the average nephrology physician in 2024

3,670 Medicare Part D claims for 339 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims. 17 claims were for opioids.

  1. Carl Dukes3,670
  2. Specialty average1,465

Most prescribed

  1. Farxiga203 claims
  2. Carvedilol190 claims
  3. Amlodipine Besylate153 claims
  4. Allopurinol138 claims
  5. Losartan Potassium110 claims
  6. Nifedipine Er106 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $11,182.29

131 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Carl Dukes$11,182
  2. Specialty average$3,091

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. M Reza Mizani MD PASan Antonio, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Carl E. Dukes among 1,159 nephrology physician records in Texas

Carl E. Dukes, MD is one of 1,159 nephrology physician records with a practice address in Texas. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 53% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1976 · median 2001 among the 954 with a school on file
  • Record last updated2020 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Texas

There are 1,159 nephrology physician records in Texas.

The 8 nephrology physician records with the nearest ZIP codes

  1. Robert Szewc, MDSan Antonio, TX 782041992759476
  2. Denise Hart, M.D.San Antonio, TX 782051558319517
  3. Alan Merin, MDSan Antonio, TX 782051366440547
  4. Varshasb Broumand, M.D.San Antonio, TX 782071154329720
  5. Timoteo Cabrera, MDSan Antonio, TX 782071144295064
  6. Claudia Hura, M.D.San Antonio, TX 782071023092657
  7. Deandra Martin, MDSan Antonio, TX 782071730155516
  8. Mohammad Mizani, M.D.San Antonio, TX 782071497757660

Common questions

What is Carl E. Dukes, MD's NPI number?

Carl E. Dukes, MD's National Provider Identifier (NPI) is 1154334464, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Carl E. Dukes, MD located?

The NPPES record lists a practice address at 2011 E Houston St, San Antonio, TX, 78202. Phone: (210) 227-1717. Providers update this record themselves, so call before visiting.

How can I verify Carl E. Dukes, MD's license?

NPPES lists Texas license number F8471, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Carl E. Dukes, MD prescribe under Medicare Part D?

In 2024, Carl E. Dukes, MD had 3,670 Medicare Part D claims for 339 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.