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

Charles Robert Williams, DO

Individual provider Family Medicine Physician · NPI 1154326205

Charles Robert Williams, DO is registered under Family Practice in Marietta, Ohio. Graduated from West Virginia University School of Medicine in 1995, 31 years ago. Practices with Marietta Memorial Hospital, a 386-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
31
Trained at
West Virginia University School of Medicine
Licensed in
OH
In the registry since
2005
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

1106 Colegate Dr Emergency Dept
Marietta, OH 45750-1232
Phone: (740) 568-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 206 Columbus Rd, Athens, OH 45701-1316 — (740) 885-4064
  • 799 Farson St, Belpre, OH 45714-1044 — (740) 401-1150
  • 401 Matthew St, Marietta, OH 45750-1635 — (740) 376-1939

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 34006534 (OH)

Record details

NPI number1154326205
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 16, 2005
Last updated in NPPESSeptember 28, 2026
Certification dateSeptember 28, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesEMERGENCY MEDICINE
Medical schoolWEST VIRGINIA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Marietta Memorial Hospital — 386 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 patients260
Services billed 396 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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.

Colleagues at Marietta Memorial Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 386 clinicians in the practice; 12 are shown here.

Other providers in Marietta