NPI age
20 years
Enumerated 2006-05-10
● Active
Type 1 · Individual
DR. Clifford David Friesen, M. D.
Friesen is 1 of 1 allergy & immunology providers in Fort Hood and 1 of 506 in Texas.
Primary specialty
Allergy & Immunology
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2007-07-08
Source: monthly bulk 2026-05
Sole proprietor
Not specified
May be part of a larger org
How this provider compares
Across 506 active allergy & immunology providers in Texas.
NPI age
20 years
≈ at median (19 yr)
State licenses
1 state
9% of peers hold multiple states
Subspecialties
0
28% of peers hold subspecialties
NPI lifetime · 2006 → 2026
2006-05Enumerated in NPPES
2006
2026
Where they practice
Practice location
36000 Darnall Loop, Allergy Clinic, Carl R. Darnall Army Medical Center
Fort Hood, TX 765445095
Mailing address
1427 River Ridge Ranch Rd
Killeen, TX 765493241
Specialties
-
Allergy & Immunology PrimaryAn allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and...
Practice context
Part of a multi-provider practice. 335 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.