NPI age
16 years
Enumerated 2009-06-09
● Active
Type 1 · Individual
DR. Jonathan D. Claassen, D.O.
Claassen is 1 of 2 preventive medicine providers in Fort Hood and 1 of 154 in Texas.
Primary specialty
Preventive Medicine
Licensed in
NE
1 state
Status
Active
No deactivations on record
Last NPPES update
2014-08-18
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 154 active preventive medicine providers in Texas.
NPI age
16 years
≈ at median (16 yr)
State licenses
1 state
8% of peers hold multiple states
Subspecialties
0
33% of peers hold subspecialties
NPI lifetime · 2009 → 2026
2009-06Enumerated in NPPES
2009
2026
Where they practice
Practice location
36000 Darnall Loop, Carl R. Darnall Army Medical Center
Fort Hood, TX 76544
Mailing address
36000 Darnall Loop, Carl R. Darnall Army Medical Center
Fort Hood, TX 76544
Specialties
-
Preventive Medicine PrimaryPublic health and general preventive medicine focuses on promoting health, preventing disease, and managing the health of communities and defined populations. These practitioners combine population-based public health skills with...
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.