NPI age
18 years
Enumerated 2007-08-08
● Active
Type 1 · Individual
DR. Josef Widerhorn, M.D.
Widerhorn is 1 of 62 internal medicine providers in Fort Worth and 1 of 2301 in Texas.
Primary specialty
Internal Medicine
Plus 3 subspecialties
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2008-04-02
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 2301 active internal medicine providers in Texas.
NPI age
18 years
≈ at median (19 yr)
State licenses
1 state
11% of peers hold multiple states
Subspecialties
3
In the 37% of peers with subspecialties
NPI lifetime · 2007 → 2026
2007-08Enumerated in NPPES
2007
2026
Where they practice
Practice location
1307 8th Ave Ste 501
Fort Worth, TX 761044143
Mailing address
Po Box 12229
Fort Worth, TX 761108229
Specialties
-
Internal Medicine PrimaryAn 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.
-
Internal MedicineA physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer,...
-
Internal MedicineA field of special interest within the subspecialty of cardiovascular disease, specialty of Internal Medicine, which involves intricate technical procedures to evaluate heart rhythms and determine appropriate treatment for them.
-
Internal MedicineAn area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 85K247 | BLUE CROSS (HARRIS HOSP) |
| 01 (TX) | 2837065-007 | CIGNA PPO |
| 01 (TX) | 2837065-012 | CIGNA HMO |
| 01 (TX) | E51105 | TRICARE (HARRIS HOSP) |
| 01 (TX) | 2500101 | UNITED HEALTHCARE |
| 01 (TX) | 4236959 | AETNA PPO |
| 01 (TX) | 80420Y | BLUE CROSS BLUE SHIELD |
| 01 (TX) | 85K247 | MEDICARE PIN (HARRIS HOSP |
| 01 (TX) | 60055861 | RAILROAD MEDICARE |
| 01 (TX) | 2171076 | ATNA HMO |
Practice context
Solo or small practice. No other active providers share 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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