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

John W. Ratzer, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1588603112

John W. Ratzer, CRNA is a Certified Registered Nurse Anesthetist in Marietta, Ohio. Practices as a sole proprietor. Licensed in Ohio.

Licensed in
OH
In the registry since
2006
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

See every abbreviation used in this directory →

Practice location Address checks out

1106 Colegate Dr
Marietta, OH 45750-1323
Phone: (740) 568-2000
Fax: (740) 568-2089
Show map & directions

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

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence COA.03487.NA (OH)

Record details

NPI number1588603112
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorYes
NPI enumeratedJune 6, 2006
Last updated in NPPESJuly 31, 2012
Mailing addressPo Box 449, Marietta, OH 45750-0449

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