Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Prof. Claudius Mahr, DO

Individual provider Cardiovascular Disease Physician · NPI 1770659526

Prof. Claudius Mahr, DO practises Advanced Heart Failure and Transplant Cardiology in Dallas, Texas. Qualified in 2004, 22 years ago. Practices with Cardiology Specialists of North Texas PLLC, a 68-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Texas and Washington.

Years since qualifying
22
Licensed in
TX, WA
In the registry since
2006
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

11970 N Central Expy Ste 340
Dallas, TX 75243-3787
Phone: (972) 940-9520
Fax: (972) 940-9535
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 11970 N Central Expy Ste 550, Dallas, TX 75243-3768 — (972) 940-9520
  • 11970 N Central Expy Ste 210, Dallas, TX 75243-3784 — (972) 940-9520

Specialties & licences

Advanced Heart Failure and Transplant Cardiology Physician (primary) Taxonomy 207RA0001X · Licence U1823 (TX)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence U1823 (TX)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence OP60447295 (WA)
Advanced Heart Failure and Transplant Cardiology Physician Taxonomy 207RA0001X · Licence OP60447295 (WA)

Record details

NPI number1770659526
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedNovember 24, 2006
Last updated in NPPESFebruary 13, 2024
Certification dateFebruary 13, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyADVANCED HEART FAILURE AND TRANSPLANT CARDIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Cardiology Specialists Of North Texas Pllc — 68 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients46
Services billed 133 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $3,341 61 payments · a meal or drink at a meeting or visit, not a fee
Travel and Lodging $1,936 6 payments · travel or lodging paid or reimbursed, such as to attend a conference

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Medical City Dallas Hospital Hospital · Dallas, TX

Colleagues at Cardiology Specialists of North Texas PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 68 clinicians in the practice; 12 are shown here.

Other providers in Dallas