Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Timothy D. O'Brien, MD

Individual provider Surgery Physician · NPI 1639136823

Timothy D. O'Brien, MD is a General Surgery in Logan, Ohio. Graduated from Ohio State University College of Medicine in 1988, 38 years ago. Practices with Hocking Valley Medical Group, Inc, a 21-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
38
Trained at
Ohio State University College of Medicine
Licensed in
OH
In the registry since
2006
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

819 State Route 664 N Ste B
Logan, OH 43138-8540
Phone: (740) 380-8140
Fax: (740) 380-8150
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 35076169 (OH)

Record details

NPI number1639136823
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 1, 2006
Last updated in NPPESNovember 23, 2020
Certification dateNovember 23, 2020
Mailing addressPo Box 228, Logan, OH 43138-0228

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Hocking Valley Medical Group, Inc. — 21 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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