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

Individual provider Obstetrics & Gynecology Physician · NPI 1417933490

Dr. James Frederick Guenther, DO is an Obstetrics & Gynecology Physician in Lancaster, Ohio. Practices as a sole proprietor and works from 2 locations. Licensed in Ohio.

Licensed in
OH
In the registry since
2005
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1319 E Main St
Lancaster, OH 43130-4005
Phone: (740) 653-9411
Fax: (740) 277-6131
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4660 Roberts Rd, Columbus, OH 43228-9671 — (513) 834-7063

Specialties & licences

Addiction Medicine (Internal Medicine) Physician (primary) Taxonomy 207RA0401X · Licence 34.004690 (OH)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 34.004690 (OH)

Record details

NPI number1417933490
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedDecember 21, 2005
Last updated in NPPESAugust 4, 2023
Certification dateAugust 4, 2023
Mailing address4600 Montgomery Rd Ste 400, Cincinnati, OH 45212-2600

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