Damian Mercier, MD
Internal Medicine Physician · Oxford, MS
Damian Mercier, MD is an internal medicine physician with a practice address in Oxford, Mississippi, and NPI 1396364519, issued on Apr 9, 2020. Check the license (Mississippi 31111, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Damian Mercier
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 31111 MS
Self-reported in NPPES; status is on the state search - Practice location
- 81 ED Perry Blvd Ste 107, Oxford, MS 38655
- Phone
- (662) 636-5290
- Enumerated
- Apr 9, 2020
- Record last updated
- Aug 10, 2023
- Fax
- (662) 636-1706
- Medicare enrollment
- Enrolled (PECOS I20230828003939); accepts Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 972 in Mississippi → Look up another NPI →
Also registered at 81 ED Perry Blvd Ste 107
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Damian 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 31111Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average internal medicine physician in 2024
412 Medicare Part D claims for 157 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Atorvastatin Calcium24 claims
- Prednisone21 claims
- Levofloxacin14 claims
- Spironolactone14 claims
- Albuterol Sulfate Hfa12 claims
- Hydrocodone-Acetaminophen11 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): 87.1 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).
Industry payments in 2024: $50.34
3 payments; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. 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 2 group practices
- Baptist Memorial Medical Group, Inc.Columbus, MS
- 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).
Damian Mercier among 972 internal medicine physician records in Mississippi
Damian Mercier, MD 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 2020, is newer than 72% of them.
- NPI issued2020 · 72% of these records are older, 25% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2020 · median 2008 among the 585 with a school on file
- Record last updated2023 · 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).
22 internal medicine physician records list a practice address in Oxford
They are 22 of the 1,418 NPPES records with a practice address in Oxford, and 972 internal medicine physician records in Mississippi.
All 972 in Mississippi → Every provider in Oxford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Ala Alkofahi, MDOxford, MS 386551487148987
- Jeffrey Dennis, MDOxford, MS 386551386750909
- Samuel Harris, M.D.Oxford, MS 386551558719625
- Charles Hill, MDOxford, MS 386551871600189
- Milton Hobbs, MDOxford, MS 386551801902309
- Brett Lampton, MDOxford, MS 386551295828614
- Odalys Lara Garcia, MDOxford, MS 386551669958799
- Jonathan Massey, MDOxford, MS 386551699745133
Common questions
What is Damian Mercier, MD's NPI number?
Damian Mercier, MD's National Provider Identifier (NPI) is 1396364519, issued on Apr 9, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Damian Mercier, MD located?
The NPPES record lists a practice address at 81 ED Perry Blvd Ste 107, Oxford, MS, 38655. Phone: (662) 636-5290. Providers update this record themselves, so call before visiting.
How can I verify Damian Mercier, MD's license?
NPPES lists Mississippi license number 31111, 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 Damian Mercier, MD prescribe under Medicare Part D?
In 2024, Damian Mercier, MD had 412 Medicare Part D claims for 157 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Damian Mercier, MD's MIPS final score?
The 2023 MIPS final score is 87.1 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.