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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DERRICK MERSHON MD
NPI 1821791567
Internal Medicine in Ashland, KY

Active since March 22, 2023PECOS Enrolled
2201 LEXINGTON AVE, ASHLAND, KY 41101(606) 408-4000 Get Directions Write a Review

NPPES record last updated: July 27, 2026. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Jul 27, 2026, Jul 9, 2026, Mar 28, 2023 and 1 more (4 updates tracked since 2023).

About Derrick Mershon Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DERRICK MERSHON MD (NPI 1821791567) is an individual internal medicine provider in Ashland, Kentucky, licensed in Kentucky (61724) and active in the NPI registry since March 2023. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1821791567
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDERRICK MERSHONCredential: MD
Location Address2201 LEXINGTON AVEAshland, KY 41101-2843
Mailing Address2201 Lexington AveAshland, KY 41101-2843 · (606) 408-4000
Phone(606) 408-4000
Sole ProprietorNo
Enumeration DateMarch 22, 2023
Last NPPES UpdateJuly 27, 20264 updates tracked since enumeration
NPPES CertifiedJuly 27, 2026
✔ NPI 1821791567 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in KY · 61724
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License 61724 (KY)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
2201 LEXINGTON AVE, Ashland, KY 41101
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Derrick Mershon Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 41101 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$122.77 typical visit price
range $52.76 – $162.27
Typical copayment $30.69 (range $13.19 – $40.56)
Most-billed visit code 99204
Established Patient
$93.94 typical visit price
range $16.53 – $131.99
Typical copayment $23.48 (range $4.13 – $32.99)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DALKEITH FITZLAWSON TUCKER D.O.
Emergency Medicine
2201 LEXINGTON AVE
ASHLAND, KY 41101
Boyd County (606) 408-0605
ELIZABETH JEAN LOAN APRN
Nurse Practitioner (Family)
2201 LEXINGTON AVE
ASHLAND, KY 41101
Boyd County (606) 408-4000
DONALD A KRAFT MD
Emergency Medicine
2201 LEXINGTON AVE
ASHLAND, KY 41101
Boyd County (606) 327-4000
DOUGLAS M MOTTLEY M.D.
Specialist
2201 LEXINGTON AVE, SUITE 8B
ASHLAND, KY 41101
Boyd County (606) 327-5190
JASON G. ELLIS CRNA
Nurse Anesthetist, Certified Registered
2201 LEXINGTON AVE
ASHLAND, KY 41101
Boyd County (606) 408-4000
ASHLEY LUSTER
Pharmacist
2201 LEXINGTON AVE
ASHLAND, KY 41101
Boyd County (606) 408-1225
HASSAN R ABUL-KHOUDOUD MD
Hospitalist
2201 LEXINGTON AVE
ASHLAND, KY 41101
Boyd County (606) 408-4000
ASHLAND HOSPITAL CORPORATION
Durable Medical Equipment & Medical Supplies
2201 LEXINGTON AVE
ASHLAND, KY 41101
Boyd County (606) 408-4000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Derrick Mershon's NPI number?

The NPI number for Derrick Mershon is 1821791567. It was assigned to this individual provider in the NPPES registry on March 22, 2023.

Where is Derrick Mershon located?

Derrick Mershon practices at 2201 Lexington Ave, Ashland, KY 41101. The listed phone number is (606) 408-4000.

What is Derrick Mershon's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Derrick Mershon enrolled in Medicare?

Yes. Derrick Mershon is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Derrick Mershon was last updated on July 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 44 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.