NPI age
18 years
Enumerated 2007-12-27
● Active
Type 1 · Individual
DR. Wendy L. Mahone-Johnson, MD
Mahone-Johnson is 1 of 9 internal medicine providers in Plano and 1 of 576 in Texas.
Primary specialty
Internal Medicine
Plus 2 subspecialties
Licensed in
TX, GA
2 states
Status
Active
No deactivations on record
Last NPPES update
2021-05-24
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 576 active internal medicine providers in Texas.
NPI age
18 years
≈ at median (19 yr)
State licenses
2 states
Top 81% — 18% of peers are multi-state
Subspecialties
1
In the 46% of peers with subspecialties
NPI lifetime · 2007 → 2026
2007-12Enumerated in NPPES
2007
2026
Where they practice
Practice location
6957 W Plano Pkwy Ste 2000
Plano, TX 75093
Mailing address
Po Box 911230
Dallas, TX 753911230
Specialties
-
Internal Medicine PrimaryAn internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and...
-
Internal MedicineAn internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (TX) | 350775804 | |
| 05 (TX) | 350775803 |
Multi-state credentialing: Licensed in 2 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 7 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 →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
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