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

Mark A Stonehill, MD

Individual provider Anesthesiology Physician · NPI 1740267335

Mark A Stonehill, MD is an Anesthesiology in Marietta, Ohio. Graduated from Indiana University School of Medicine in 2001, 25 years ago. Practices with Marietta Memorial Hospital, a 386-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Indiana and Ohio.

Years since qualifying
25
Trained at
Indiana University School of Medicine
Licensed in
IN, OH
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

401 Matthew St
Marietta, OH 45750-1635
Phone: (740) 376-1994
Fax: (740) 376-1940
Show map & directions

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

Additional practice locations (1)

  • 1106 Colegate Dr, Marietta, OH 45750-1323 — (740) 568-2000

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 35099209 (OH)
Anesthesiology Physician Taxonomy 207L00000X · Licence 1060912 (IN)

Record details

NPI number1740267335
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 27, 2005
Last updated in NPPESMarch 4, 2022
Certification dateMarch 4, 2022
Mailing addressPo Box 449, Marietta, OH 45750-0449

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2001 (25 years in practice)
Group practice Marietta Memorial Hospital — 386 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Marietta