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

John Russell Mercke Jr., MD

Individual provider Family Medicine Physician · NPI 1821594763

John Russell Mercke Jr., MD is a Family Practice in Leesville, Louisiana. Qualified in 2017, 9 years ago. Practices with Leatherwood Emergency Group LLC, a 14-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Louisiana.

Years since qualifying
9
Licensed in
LA
In the registry since
2018
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1020 W Fertitta Blvd
Leesville, LA 71446-4645
Phone: (337) 392-6203
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 301 4th St, Alexandria, LA 71301-8411 — (318) 441-1030

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 328002 (LA)

Record details

NPI number1821594763
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 31, 2018
Last updated in NPPESOctober 8, 2021
Certification dateJuly 29, 2021

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Leatherwood Emergency Group Llc — 14 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Other providers in Leesville