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

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Practice location Address checks out

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

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