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

Dr. Billy Back, MD

Individual provider Internal Medicine Physician · NPI 1831191444

Dr. Billy Back, MD is an Internal Medicine in Greenwich, Ohio. Graduated from Medical College of Ohio in 1999, 27 years ago. Practices with Mercy Health Physicians-North LLC, a 132-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
27
Trained at
Medical College of Ohio
Licensed in
OH
In the registry since
2005
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

65 W Main St
Greenwich, OH 44837-1030
Phone: (419) 752-1811
Fax: (419) 752-2145
Show map & directions

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 35078984 (OH)

Record details

NPI number1831191444
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 12, 2005
Last updated in NPPESSeptember 1, 2016
Mailing address65 W Main St, Greenwich, OH 44837-1030

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMEDICAL COLLEGE OF OHIO
Graduated 1999 (27 years in practice)
Group practice Mercy Health Physicians-North Llc — 132 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare