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

Mohamad Hassouni Sadeq Muhailan, MD

Individual provider Internal Medicine Physician · NPI 1588186951

Mohamad Hassouni Sadeq Muhailan, MD practises Internal Medicine in Mansfield, Ohio. Practices with Ohiohealth Corporation, a 2,289-clinician group and accepts Medicare assignment. Licensed in Ohio.

Licensed in
OH
In the registry since
2017
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

335 Glessner Ave
Mansfield, OH 44903-2269
Phone: (740) 383-8473
Fax: (740) 383-8695
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 35.138166 (OH)
Internal Medicine Physician Taxonomy 207R00000X · Licence 35.138166 (OH)

Record details

NPI number1588186951
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 7, 2017
Last updated in NPPESOctober 1, 2021
Certification dateOctober 1, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Group practice Ohiohealth Corporation — 2289 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients319
Services billed 803 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

  • Bucyrus Community Hospital Hospital · Bucyrus, OH · listed as Bucyrus Community Hospital LLC
  • Grant Medical Center Hospital · Columbus, OH
  • Ohiohealth Mansfield Hospital Hospital · Mansfield, OH
  • Ohiohealth Shelby Hospital Hospital · Shelby, OH

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Ohiohealth Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2289 clinicians in the practice; 12 are shown here.

Other providers in Mansfield