NPI age
19 years
Enumerated 2007-01-31
● Active
Type 1 · Individual
DR. Ewell Maydell Hollis III, M.D.
Hollis is 1 of 7 preventive medicine providers in Fort Sam Houston and 1 of 154 in Texas.
Primary specialty
Preventive Medicine
Plus 1 subspecialty
Licensed in
VA
1 state
Status
Active
No deactivations on record
Last NPPES update
2022-06-30
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 154 active preventive medicine providers in Texas.
NPI age
19 years
↑ 3 yr above median (16 yr)
State licenses
1 state
8% of peers hold multiple states
Subspecialties
1
In the 33% of peers with subspecialties
NPI lifetime · 2007 → 2026
2007-01Enumerated in NPPES
2007
2026
Where they practice
Practice location
3551 Roger Brooke Dr
Fort Sam Houston, TX 782344504
Mailing address
Po Box 9086
Camp Lejeune, NC 285479086
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...
-
General PracticeA physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
Practice context
Part of a multi-provider practice. 1394 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.
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