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

Dr. Robert Edwin Exten Jr., MD

Individual provider Hematology & Oncology Physician · NPI 1205832375

Dr. Robert Edwin Exten Jr., MD is a Hematology/Oncology in Lima, Ohio. Graduated from Ohio State University College of Medicine in 1975, 51 years ago. Works from 2 locations and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
51
Trained at
Ohio State University College of Medicine
Licensed in
OH
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

803 W Market St Ste 200
Lima, OH 45805-2796
Phone: (419) 222-3737
Fax: (419) 229-3234
Show map & directions

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

Additional practice locations (1)

  • 1510 Columbus Ave Ste 130, Washington Court House, OH 43160-1986 — (740) 333-2878

Specialties & licences

Hematology (Internal Medicine) Physician (primary) Taxonomy 207RH0000X · Licence 35.038459 (OH)
Hematology & Oncology Physician Taxonomy 207RH0003X · Licence 35038459E (OH)

Record details

NPI number1205832375
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2005
Last updated in NPPESAugust 21, 2023
Certification dateAugust 21, 2023
Mailing address475 Lexington Ave, Mansfield, OH 44907-1501

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 1975 (51 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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