NPPES file of Aug 9, 2026

Mark S. Leath, CRNA

Certified Registered Nurse Anesthetist · Monroe, LA

Mark S. Leath, CRNA is a certified registered nurse anesthetist with a practice address in Monroe, Louisiana, and NPI 1871573014, issued on Jan 21, 2006. Check the license (Louisiana AP05050, as entered in NPPES) with the Louisiana board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871573014
Name
Mark S. Leath
Credential
CRNA
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License numbers
AP05050 LA
C01511 AR
Self-reported in NPPES; status is on the state search
Practice location
4864 Jackson St, Monroe, LA 71202
Phone
(318) 330-7626
Enumerated
Jan 21, 2006
Record last updated
Aug 28, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(318) 330-7648
Medicaid IDs
1454222 LA
157491001 AR
Medicare enrollment
Enrolled (PECOS I20070202000334); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4864 Jackson St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Julia Allen, DNAPCertified Registered Nurse Anesthetist1457966525
  2. Joann Alley, M.D.Surgery Physician1093829392
  3. Ijeoma AmanzeFamily Medicine Physician1982339099
  4. Vernon Baldwin, CRNACertified Registered Nurse Anesthetist1245303957
  5. Curtis Balius, M.D.Emergency Medicine Physician1497765523
  6. Lauren Baum, MDEmergency Medicine Physician1356923742

Verify Mark S. Leath in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Louisiana board licenses this profession
    Search for license AP05050
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Louisiana license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Smso Anesthesia, LLCMonroe, LA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark S. Leath among 1,819 certified registered nurse anesthetist records in Louisiana

Mark S. Leath, CRNA is one of 1,819 certified registered nurse anesthetist records with a practice address in Louisiana. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 66% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated2004 · median 2011 among the 1,412 with a school on file
  • Record last updated2017 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

46 certified registered nurse anesthetist records list a practice address in Monroe

They are 46 of the 3,365 NPPES records with a practice address in Monroe, and 1,819 certified registered nurse anesthetist records in Louisiana.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Julia Allen, DNAPMonroe, LA 712021457966525
  2. Vernon Baldwin, CRNAMonroe, LA 712021245303957
  3. Larrie Butler, CRNAMonroe, LA 712021932113784
  4. Cherie Donias, CRNAMonroe, LA 712021194775049
  5. Elizabeth Gentry - Breen, CRNAMonroe, LA 712021992850929
  6. Alexis James, CRNAMonroe, LA 712021891154761
  7. Angela Jimes, CRNAMonroe, LA 712021437339579
  8. Chelsea McKittrickMonroe, LA 712021760118616

Common questions

What is Mark S. Leath, CRNA's NPI number?

Mark S. Leath, CRNA's National Provider Identifier (NPI) is 1871573014, issued on Jan 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark S. Leath, CRNA located?

The NPPES record lists a practice address at 4864 Jackson St, Monroe, LA, 71202. Phone: (318) 330-7626. Providers update this record themselves, so call before visiting.

How can I verify Mark S. Leath, CRNA's license?

NPPES lists Louisiana license number AP05050, as entered by the provider. Search the Louisiana board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.