Carl Dukes, MD
NPI 1154334464 · Nephrology Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carl Dukes, MD is a Nephrology Physician provider in San Antonio, TX (NPI 1154334464).
Provider details
- NPI number
- 1154334464
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- F8471 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
983 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 572 | $107 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 299 | $16 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 84 | $335 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 28 | $152 |
Typical Medicare-allowed amounts for these services range $16–$335 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 76 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dapagliflozin Propanediolbrand: Farxiga | 203 | 45 |
| Carvedilol | 190 | 63 |
| Amlodipine Besylate | 153 | 40 |
| Allopurinol | 138 | 38 |
| Losartan Potassium | 110 | 32 |
| Nifedipinebrand: Nifedipine Er | 106 | 35 |
| Irbesartan | 103 | 35 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$11,182 across 131 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-15
- Last updated
- 2020-06-03
- Certified
- 2020-06-03
Frequently asked questions
- What is Carl Dukes's NPI number?
- Carl Dukes's National Provider Identifier (NPI) is 1154334464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carl Dukes's specialty?
- Carl Dukes is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Carl Dukes located?
- Carl Dukes's practice location on file with NPPES is 2011 E Houston St, San Antonio, TX 78202-2916.
- What is Carl Dukes's phone number?
- The practice phone number listed in the NPPES registry for Carl Dukes is (210) 227-1717.
- Does Carl Dukes accept Medicare?
- Carl Dukes is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carl Dukes's NPI active?
- Yes — Carl Dukes's NPI (1154334464) is active in the NPPES registry as of the last update on 2020-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.