Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark S Leath, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1871573014

Mark S Leath, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Monroe, Louisiana. Qualified in 2004, 22 years ago. Practices with Smso Anesthesia, LLC, a 51-clinician group and accepts Medicare assignment. Licensed in Arkansas and Louisiana.

Years since qualifying
22
Licensed in
AR, LA
In the registry since
2006
Specialties on file
2
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

4864 Jackson St
Monroe, LA 71202-6400
Phone: (318) 330-7626
Fax: (318) 330-7648
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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 AP05050 (LA)
Certified Registered Nurse Anesthetist Taxonomy 367500000X · Licence C01511 (AR)

Record details

NPI number1871573014
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedJanuary 21, 2006
Last updated in NPPESAugust 28, 2017

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Smso Anesthesia, Llc — 51 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients223
Services billed 226 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Smso Anesthesia, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 51 clinicians in the practice; 12 are shown here.

Other providers in Monroe