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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ROBERT ROWAN SUMMERS D.O.
NPI 1326020298
Obstetrics & Gynecology in Defiance, OH

Active since November 16, 2005
1400 E 2ND ST, DEFIANCE, OH 43512(419) 784-1414 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Robert Rowan Summers D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ROBERT ROWAN SUMMERS D.O. (NPI 1326020298) is an individual obstetrics & gynecology provider in Defiance, Ohio, licensed in Ohio (34006606S) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1326020298
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameDR. ROBERT ROWAN SUMMERSCredential: D.O.
Location Address1400 E 2ND STDefiance, OH 43512-2440
Mailing Address1400 E 2nd StDefiance, OH 43512-2440 · (419) 784-1414
Phone(419) 784-1414
Sole ProprietorNo
Enumeration DateNovember 16, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1326020298 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in OH · 34006606S
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1400 E 2ND ST, Defiance, OH 43512
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Other Identifiers 1

Medicaid2138207OH

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. DOUGLAS LEE CRNA
Nurse Anesthetist, Certified Registered
1400 E 2ND ST
DEFIANCE, OH 43512
Defiance County (419) 784-1414
DR. JOHN J. RACCIATO M.D.
Ophthalmology
1400 E 2ND ST
DEFIANCE, OH 43512
Defiance County (419) 784-1414
MERCY MEDICAL PARTNERS NORTHERN REGION SPECIALTY CARE LLC
Durable Medical Equipment & Medical Supplies (Customized Equipment)
1400 E 2ND ST
DEFIANCE, OH 43512
Defiance County (419) 784-1414
DR. TRICIA W VANDEHEY M.D.
Family Medicine
1400 E 2ND ST
DEFIANCE, OH 43512
Defiance County (419) 784-1414
MID AMERICAN IMAGING, INC.
Clinic/Center (Radiology, Mobile)
1400 E 2ND ST
DEFIANCE, OH 43512
Defiance County (419) 783-3239
JESSICA ROSE KRUGH PA
Physician Assistant
1400 E 2ND ST
DEFIANCE, OH 43512
Defiance County (429) 783-3261
MOLLY KNEPLEY OT
Occupational Therapist
1400 E 2ND ST
DEFIANCE, OH 43512
Defiance County (419) 784-1414
DR. GARY FOX M.D.
Family Medicine
1400 E 2ND ST
DEFIANCE, OH 43512
Defiance County (419) 783-3264

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Summers's NPI number?

The NPI number for Robert Summers is 1326020298. It was assigned to this individual provider in the NPPES registry on November 16, 2005.

Where is Robert Summers located?

Robert Summers practices at 1400 E 2nd St, Defiance, OH 43512. The listed phone number is (419) 784-1414.

What is Robert Summers's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

When was this NPI record last updated?

The NPPES record for Robert Summers was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.