Damian Mercier, MD
NPI 1396364519 · Internal Medicine Physician · Oxford, MS
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Damian Mercier, MD is a Internal Medicine Physician provider in Oxford, MS (NPI 1396364519).
Provider details
- NPI number
- 1396364519
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 31111 (MS)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,203 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 349 | $109 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 168 | $72 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 151 | $104 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 99 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 97 | $82 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 24 | 13 |
| Prednisone | 21 | 17 |
| Levofloxacin | 14 | 14 |
| Spironolactone | 14 | 14 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 12 | — |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 11 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$50 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-04-09
- Last updated
- 2023-08-10
- Certified
- 2023-08-10
Frequently asked questions
- What is Damian Mercier's NPI number?
- Damian Mercier's National Provider Identifier (NPI) is 1396364519, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Damian Mercier's specialty?
- Damian Mercier is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Damian Mercier located?
- Damian Mercier's practice location on file with NPPES is 81 Ed Perry Blvd Ste 107, Oxford, MS 38655-3465.
- What is Damian Mercier's phone number?
- The practice phone number listed in the NPPES registry for Damian Mercier is (662) 636-5290.
- Does Damian Mercier accept Medicare?
- Damian Mercier is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Damian Mercier's NPI active?
- Yes — Damian Mercier's NPI (1396364519) is active in the NPPES registry as of the last update on 2023-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.