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Internal Medicine

Derek Harshaw, DO

Works at hospitals in East Liverpool, OH · Youngstown, OH · Ohio

Summary

Derek Harshaw, DO (Internal Medicine) is listed by Medicare at 2 hospitals in East Liverpool, OH and Youngstown, OH. NPI 1588010649. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Derek Harshaw, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
10Years since medical school (graduated 2016)
Lake Erie College Of Osteopathic Medicine, ErieMedical school
MaleGender (as listed)
River Valley Physicians LLCGroup practice

Quick answers

Which hospitals does Derek Harshaw work at?
Medicare's official clinician data lists Derek Harshaw at 2 hospitals: East Liverpool City Hospital and MH St Elizabeth Youngstown Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Derek Harshaw see patients?
Medicare's clinician data lists 5 practice locations, including East Liverpool, OH and Chester, WV. Call before your visit to confirm the address.
What is Derek Harshaw's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Derek Harshaw accept Medicare assignment?
Yes. Medicare's clinician data says Derek Harshaw accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Derek Harshaw?
(330) 385-7170, as listed in official Medicare / NPI Registry data.
What is Derek Harshaw's NPI number?
1588010649. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Derek Harshaw works

Medicare's Facility Affiliation Data lists Derek Harshaw at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Derek Harshaw is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Derek Harshaw as a member of this group (CMS data updated 2026-10-02).

  • River Valley Physicians LLC55 clinicians in the group

Specialties

Find other Internal Medicine doctors in Ohio →

Other internal medicine doctors in East Liverpool

Clinicians with the same Medicare primary specialty in East Liverpool, OH — not a recommendation.

All internal medicine doctors in East Liverpool →

Clinician information

CredentialDO
Medical schoolLake Erie College Of Osteopathic Medicine, Erie
Graduation year2016
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1588010649
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians