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

John R. Karlen, MD

Individual provider Gynecologic Oncology Physician · NPI 1619972031

John R. Karlen, MD is a Gynecologic Oncology Physician in Akron, 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

224 W Exchange St Ste 420
Akron, OH 44302-1704
Phone: (330) 344-6041
Fax: (330) 344-6449
Show map & directions

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

Specialties & licences

Gynecologic Oncology Physician (primary) Taxonomy 207VX0201X · Licence 35-037937 (OH)

Record details

NPI number1619972031
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 14, 2005
Last updated in NPPESDecember 4, 2015

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