Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Lesa Lorrayne Rathjen, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1598746208

Lesa Lorrayne Rathjen, CRNA is a Certified Registered Nurse Anesthetist (CRNA) in Fort Sam Houston, Texas. Qualified in 1999, 27 years ago. Practices with Osama Haikal MD Ltd, a 10-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
27
Licensed in
TX
In the registry since
2005
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

3851 Roger Brooke Dr
Fort Sam Houston, TX 78234-4501
Phone: (210) 916-1222
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 673777 (TX)

Record details

NPI number1598746208
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorYes
NPI enumeratedNovember 9, 2005
Last updated in NPPESSeptember 26, 2014

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Osama Haikal Md Ltd — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Fort Sam Houston