Derrick Mershon, MD
Internal Medicine Physician · Ashland, KY
Derrick Mershon, MD is an internal medicine physician with a practice address in Ashland, Kentucky, and NPI 1821791567, issued on Mar 22, 2023. Check the license (Kentucky 61724, as entered in NPPES) on the Kentucky Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- Derrick Mershon
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 61724 KY
Self-reported in NPPES; status is on the state search - Practice location
- 2201 Lexington Ave, Ashland, KY 41101
- Phone
- (606) 408-4000
- Enumerated
- Mar 22, 2023
- Record last updated
- Jul 27, 2026
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,526 in Kentucky → Look up another NPI →
Also registered at 2201 Lexington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Derrick Mershon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersKentucky Board of Medical Licensure
Search for license 61724Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
104 Medicare Part D claims for 51 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Derrick Mershon among 1,526 internal medicine physician records in Kentucky
Derrick Mershon, MD is one of 1,526 internal medicine physician records with a practice address in Kentucky. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 97% of them.
- NPI issued2023 · 97% of these records are older, under 1% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2026 · 56% 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 Kentucky practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 internal medicine physician records list a practice address in Ashland
They are 17 of the 1,637 NPPES records with a practice address in Ashland, and 1,526 internal medicine physician records in Kentucky.
All 1,526 in Kentucky → Every provider in Ashland → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Kayla Bailey, M.D.Ashland, KY 411011184069734
- Kimberly Baldock, MDAshland, KY 411011144225657
- Michael BanksAshland, KY 411011083024616
- Julia Burchett, D.O.Ashland, KY 411011679008536
- Allen Cochran, M.D.Ashland, KY 411011952690711
- Maria Consuelo Domingo, M.D.Ashland, KY 411011780894279
- Brittany Gilbert, DOAshland, KY 411011477119220
- James Goetz, M.D.Ashland, KY 411011700827714
Common questions
What is Derrick Mershon, MD's NPI number?
Derrick Mershon, MD's National Provider Identifier (NPI) is 1821791567, issued on Mar 22, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Derrick Mershon, MD located?
The NPPES record lists a practice address at 2201 Lexington Ave, Ashland, KY, 41101. Phone: (606) 408-4000. Providers update this record themselves, so call before visiting.
How can I verify Derrick Mershon, MD's license?
NPPES lists Kentucky license number 61724, as entered by the provider. Search the Kentucky Board of Medical Licensure at https://web1.ky.gov/GenSearch/LicenseSearch.aspx?AGY=5. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Derrick Mershon, MD prescribe under Medicare Part D?
In 2024, Derrick Mershon, MD had 104 Medicare Part D claims for 51 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.