Jacob Mercier
Internal Medicine Physician · Columbus, MS
Jacob Mercier is an internal medicine physician with a practice address in Columbus, Mississippi, and NPI 1437723863, issued on May 19, 2021. Check the license (Mississippi 31389, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Jacob Mercier
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 31389 MS
Self-reported in NPPES; status is on the state search - Practice location
- Baptist Memorial Hospital, Columbus, MS 39705
- Phone
- (662) 244-2084
- Enumerated
- May 19, 2021
- Record last updated
- Oct 23, 2024
- Medicare enrollment
- Enrolled (PECOS I20241024004644); accepts Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 972 in Mississippi → Look up another NPI →
Verify Jacob Mercier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 31389Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average internal medicine physician in 2024
548 Medicare Part D claims for 120 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium41 claims
- Amlodipine Besylate32 claims
- Pantoprazole Sodium27 claims
- Spironolactone22 claims
- Losartan Potassium18 claims
- Carvedilol17 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.
Industry payments in 2024: $22.68
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Comprehensive Hospitalists OF MS, LLCOxford, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jacob Mercier among 972 internal medicine physician records in Mississippi
Jacob Mercier is one of 972 internal medicine physician records with a practice address in Mississippi. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 75% of them.
- NPI issued2021 · 75% of these records are older, 21% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2021 · median 2008 among the 585 with a school on file
- Record last updated2024 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
34 internal medicine physician records list a practice address in Columbus
They are 34 of the 843 NPPES records with a practice address in Columbus, and 972 internal medicine physician records in Mississippi.
All 972 in Mississippi → Every provider in Columbus → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Brett Brown, MDColumbus, MS 397051841221702
- Bradley Brown, M.D.Columbus, MS 397051992736870
- Christina Collins, MDColumbus, MS 397051760692917
- Michael Duckworth, M.D.Columbus, MS 397051083682934
- Mark Friloux, MDColumbus, MS 397051679562748
- Min Kim, MDColumbus, MS 397051437187333
- Slater Lowry, M.D.Columbus, MS 397051619048204
- Gregory Nunez, MDColumbus, MS 397051497869978
Common questions
What is Jacob Mercier's NPI number?
Jacob Mercier's National Provider Identifier (NPI) is 1437723863, issued on May 19, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Jacob Mercier located?
The NPPES record lists a practice address at Baptist Memorial Hospital, Columbus, MS, 39705. Phone: (662) 244-2084. Providers update this record themselves, so call before visiting.
How can I verify Jacob Mercier's license?
NPPES lists Mississippi license number 31389, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Jacob Mercier prescribe under Medicare Part D?
In 2024, Jacob Mercier had 548 Medicare Part D claims for 120 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions 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.