Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Derek Christopher Harshaw, DO

Individual provider Family Medicine Physician · NPI 1588010649

Derek Christopher Harshaw, DO practises Internal Medicine in East Liverpool, Ohio. Graduated from Lake Erie College of Osteopathic Medicine, Erie in 2016, 10 years ago. Practices with River Valley Physicians LLC, a 55-clinician group, works from 5 locations and accepts Medicare assignment. Licensed in Ohio and West Virginia.

Years since qualifying
10
Trained at
Lake Erie College of Osteopathic Medicine, Erie
Licensed in
OH, WV
In the registry since
2016
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

425 W 5th St
East Liverpool, OH 43920
Phone: (330) 385-7200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (4)

  • 123 W 6th St, East Liverpool, OH 43920-2921 — (330) 385-7170
  • 16761 Saint Clair Ave # 2, East Liverpool, OH 43920-9400 — (330) 385-9670
  • 330 N Market St Ste B, Lisbon, OH 44432-1146 — (330) 870-4601
  • 218 Three Springs Dr, Weirton, WV 26062-3815 — (304) 723-3627

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 34.013770 (OH)
Family Medicine Physician Taxonomy 207Q00000X · Licence 3350 (WV)

Record details

NPI number1588010649
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedMay 9, 2016
Last updated in NPPESOctober 28, 2021
Certification dateOctober 28, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolLAKE ERIE COLLEGE OF OSTEOPATHIC MEDICINE, ERIE
Graduated 2016 (10 years in practice)
Group practice River Valley Physicians Llc — 55 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients238
Services billed 707 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at River Valley Physicians LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 55 clinicians in the practice; 12 are shown here.

Other providers in East Liverpool