NPI age
9 years
Enumerated 2017-03-23
● Active
Type 1 · Individual
Karen M Muschler, D.O.
Muschler is 1 of 86 emergency medicine providers in Fort Sam Houston and 1 of 6039 in Texas.
Primary specialty
Emergency Medicine
Plus 1 subspecialty
Licensed in
CO
1 state
Status
Active
No deactivations on record
Last NPPES update
2025-10-06
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 6039 active emergency medicine providers in Texas.
NPI age
9 years
↓ 6 yr below median (15 yr)
State licenses
1 state
17% of peers hold multiple states
Subspecialties
1
In the 43% of peers with subspecialties
NPI lifetime · 2017 → 2026
2017-03Enumerated in NPPES
2017
2026
Where they practice
Practice location
3551 Roger Brooke Dr
Fort Sam Houston, TX 782344504
Mailing address
3551 Roger Brooke Dr
San Antonio, TX 782344504
Additional practice locations
1 secondary location on file with NPPES.
Location 2
1391 Speer Blvd
Denver, CO 802042508
Specialties
-
Emergency Medicine PrimaryAn emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department....
-
Emergency MedicineMedical toxicologists are physicians who specialize in the prevention, evaluation, treatment and monitoring of injury and illness from exposures to drugs and chemicals, as well as biological and radiological agents. Medical...
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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