NPI age
19 years
Enumerated 2006-11-24
● Active
Type 1 · Individual
PROF. Claudius Mahr, D.O.
Mahr is 1 of 22 internal medicine providers in Dallas and 1 of 81 in Texas.
Primary specialty
Internal Medicine
Plus 3 subspecialties
Licensed in
TX, WA
2 states
Status
Active
No deactivations on record
Last NPPES update
2024-02-13
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 81 active internal medicine providers in Texas.
NPI age
19 years
↑ 3 yr above median (16 yr)
State licenses
2 states
Top 67% — 32% of peers are multi-state
Subspecialties
1
In the 77% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-11Enumerated in NPPES
2006
2026
Where they practice
Practice location
11970 N Central Expy Ste 340
Dallas, TX 752433787
Mailing address
11970 N Central Expy Ste 340
Dallas, TX 752433787
Additional practice locations
2 secondary locations on file with NPPES.
Location 2
11970 N Central Expy Ste 210
Dallas, TX 752433784
Location 3
11970 N Central Expy Ste 550
Dallas, TX 752433768
Specialties
-
Internal Medicine PrimarySpecialists in Advanced Heart Failure and Transplant Cardiology would participate in the inpatient and outpatient management of patients with advanced heart failure across the spectrum from consideration for high-risk cardiac surgery,...
-
Internal MedicineAn internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (WA) | 1770659526 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 1 other active provider shares this practice address in NPPES.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
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