NPI age
19 years
Enumerated 2007-04-25
● Active
Type 1 · Individual
DR. John Hendrix Knowles, DDS
Knowles is 1 of 27 dentist providers in Desoto and 1 of 15661 in Texas.
Primary specialty
Dentist
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2007-07-08
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 15661 active dentist providers in Texas.
NPI age
19 years
↑ 5 yr above median (14 yr)
State licenses
1 state
5% of peers hold multiple states
Subspecialties
0
13% of peers hold subspecialties
NPI lifetime · 2007 → 2026
2007-04Enumerated in NPPES
2007
2026
Where they practice
Practice location
216 Dalton Dr
Desoto, TX 751154414
Mailing address
216 Dalton Dr
Desoto, TX 751154414
Specialties
-
Dentist PrimaryA general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.
Practice context
Part of a multi-provider practice. 3 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.