NPI age
20 years
Enumerated 2005-06-08
● Active
Type 1 · Individual
DR. Frank W Theilen, MD
Theilen is 1 of 11 otolaryngology providers in Irving and 1 of 1024 in Texas.
Primary specialty
Otolaryngology
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2008-01-14
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 1024 active otolaryngology providers in Texas.
NPI age
20 years
≈ at median (19 yr)
State licenses
1 state
11% of peers hold multiple states
Subspecialties
0
30% of peers hold subspecialties
NPI lifetime · 2005 → 2026
2005-06Enumerated in NPPES
2005
2026
Where they practice
Practice location
400 W Ih 635 Fwy, Ste 360
Irving, TX 750633764
Mailing address
400 W Ih 635 Fwy, Ste 360
Irving, TX 750633707
Specialties
-
Otolaryngology PrimaryAn otolaryngologist-head and neck surgeon provides comprehensive medical and surgical care for patients with diseases and disorders that affect the ears, nose, throat, the respiratory and upper alimentary systems and related structures...
Practice context
Part of a multi-provider practice. 13 other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
Need all 1024 Otolaryngology providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this provider
- 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.