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

William Paul Hartmann III, MD

Individual provider Psychiatry Physician · NPI 1255318408

William Paul Hartmann III, MD is a Psychiatry Physician in Mason, Ohio. Licensed in Ohio. Registered with an NPI since 2005.

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

4075 Old Western Row Rd
Mason, OH 45040-3104
Phone: (513) 536-0600
Fax: (513) 536-0609
Show map & directions

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

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 35-079023 (OH)

Record details

NPI number1255318408
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 29, 2005
Last updated in NPPESSeptember 4, 2015

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