NPI age
11 years
Enumerated 2014-10-02
● Active
Type 1 · Individual
MRS. Diana Mahannah-John
Mahannah-John is 1 of 12 clinic/center providers in Houston and 1 of 80 in Texas.
Primary specialty
Clinic/Center
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2014-10-02
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 80 active clinic/center providers in Texas.
NPI age
11 years
≈ at median (12 yr)
State licenses
1 state
0% of peers hold multiple states
Subspecialties
0
56% of peers hold subspecialties
NPI lifetime · 2014 → 2026
2014-10Enumerated in NPPES
2014
2026
Where they practice
Practice location
7428 Park Place Blvd
Houston, TX 770874442
Mailing address
7428 Park Place Blvd
Houston, TX 770874442
Specialties
-
Clinic/Center PrimaryAn entity, facility, or distinct part of a facility providing diagnostic, and replacement maintenance treatment services related to individuals with drug addiction.
Practice context
Part of a multi-provider practice. 4 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.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.