Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Mohammad Yassen

Works at hospitals in Chillicothe, OH · Columbus, OH · Ohio

Summary

Mohammad Yassen (Internal Medicine) is listed by Medicare at 2 hospitals in Chillicothe, OH and Columbus, OH. NPI 1881217917. 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 Mohammad Yassen, 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
7Years since medical school (graduated 2019)
Eastern Virginia Medical SchoolMedical school
MaleGender (as listed)
Hospitalist Medicine Physicians of Ohio, Professional CorporationGroup practice (+1 more)

Quick answers

Which hospitals does Mohammad Yassen work at?
Medicare's official clinician data lists Mohammad Yassen at 2 hospitals: Adena Regional Medical Center and Mount Carmel East & West. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mohammad Yassen see patients?
Medicare's clinician data lists 2 practice locations, including Chillicothe, OH and Columbus, OH. Call before your visit to confirm the address.
What is Mohammad Yassen's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Mohammad Yassen accept Medicare assignment?
Yes. Medicare's clinician data says Mohammad Yassen 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 Mohammad Yassen?
(740) 779-7500, as listed in official Medicare / NPI Registry data.
What is Mohammad Yassen's NPI number?
1881217917. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mohammad Yassen works

Medicare's Facility Affiliation Data lists Mohammad Yassen 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 Mohammad Yassen is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Mohammad Yassen as a member of these groups (CMS data updated 2026-10-02).

  • Hospitalist Medicine Physicians of Ohio, Professional Corporation158 clinicians in the group
  • Hospitalist Medicine Physicians of Ohio-Columbus II Professional Corp70 clinicians in the group

Specialties

Find other Internal Medicine doctors in Ohio →

Other internal medicine doctors in Chillicothe

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

All internal medicine doctors in Chillicothe →

Clinician information

Medical schoolEastern Virginia Medical School
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1881217917
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