John Russell Mercke, MD
Family Medicine Physician · Leesville, LA
John Russell Mercke, MD is a family medicine physician with a practice address in Leesville, Louisiana, and NPI 1821594763, issued on Mar 31, 2018. Check the license (Louisiana 328002, as entered in NPPES) on the Louisiana State Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John Russell Mercke
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 328002 LA
Self-reported in NPPES; status is on the state search - Practice location
- 1020 W Fertitta Blvd, Leesville, LA 71446
- Phone
- (337) 392-6203
- Enumerated
- Mar 31, 2018
- Record last updated
- Oct 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210729001894); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,728 in Louisiana → Look up another NPI →
Also registered at 1020 W Fertitta Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jashua Bower, NPNurse Practitioner1972034155
- Charles Caldwell, M.D.Diagnostic Radiology Physician1528008695
- Sydni CallahanFamily Nurse Practitioner1265367544
- Rachael Garrison, PA-CPhysician Assistant1528511615
- Jo Ann Gibbs, PHARM.D.Pharmacist1679806814
- Sylwia Hatley, MDUrology Physician1730055310
Verify John Russell Mercke in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersLouisiana State Board of Medical Examiners
Search for license 328002Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average family medicine physician in 2024
910 Medicare Part D claims for 307 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 57 claims were for opioids.
Most prescribed
- Ondansetron Odt85 claims
- Cefdinir64 claims
- Hydrocodone-Acetaminophen33 claims
- Pantoprazole Sodium31 claims
- Clopidogrel26 claims
- Levofloxacin25 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 59.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 4 group practices
- Calcasieu Cameron Hospital Medicine Group LLCAlexandria, LA
- Central Louisiana Physicians, LLCAlexandria, LA
- Clhg-Oakdale LLCOakdale, LA
- Leatherwood Emergency Group LLCOakdale, LA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Russell Mercke among 1,728 family medicine physician records in Louisiana
John Russell Mercke, MD is one of 1,728 family medicine physician records with a practice address in Louisiana. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 82% of them.
- NPI issued2018 · 82% of these records are older, 14% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2017 · median 2006 among the 1,201 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Louisiana practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 family medicine physician records list a practice address in Leesville
They are 7 of the 346 NPPES records with a practice address in Leesville, and 1,728 family medicine physician records in Louisiana.
All 1,728 in Louisiana → Every provider in Leesville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Nichole Churchman, M.D.Leesville, LA 714461700916095
- Timothy Donovan, MDLeesville, LA 714461497917280
- Robert Lamme, M.D.Leesville, LA 714461548422181
- Kimberly Landrum, M.D.Leesville, LA 714461336401157
- Melissa Montoya, DOLeesville, LA 714461588197594
- Melissa Moss, MDLeesville, LA 714461609869353
- Patvin Adams, MDMany, LA 714491932302205
- Gregory Founds, MDMany, LA 714491477579027
Common questions
What is John Russell Mercke, MD's NPI number?
John Russell Mercke, MD's National Provider Identifier (NPI) is 1821594763, issued on Mar 31, 2018. An NPI identifies a provider in billing; it is not a license.
Where is John Russell Mercke, MD located?
The NPPES record lists a practice address at 1020 W Fertitta Blvd, Leesville, LA, 71446. Phone: (337) 392-6203. Providers update this record themselves, so call before visiting.
How can I verify John Russell Mercke, MD's license?
NPPES lists Louisiana license number 328002, as entered by the provider. Search the Louisiana State Board of Medical Examiners at https://www.lsbme.la.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Russell Mercke, MD prescribe under Medicare Part D?
In 2024, John Russell Mercke, MD had 910 Medicare Part D claims for 307 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is John Russell Mercke, MD's MIPS final score?
The 2023 MIPS final score is 59.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.