NPPES file of Aug 9, 2026

Robert Rowan Summers, D.O.

Obstetrics & Gynecology Physician · Defiance, OH

Robert Rowan Summers, D.O. is an obstetrics & gynecology physician with a practice address in Defiance, Ohio, and NPI 1326020298, issued on Nov 16, 2005. Check the license (Ohio 34006606S, as entered in NPPES) on the State Medical Board of Ohio; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326020298
Name
Robert Rowan Summers
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
34006606S OH
Self-reported in NPPES; status is on the state search
Practice location
1400 E 2ND St, Defiance, OH 43512
Phone
(419) 784-1414
Enumerated
Nov 16, 2005
Record last updated
Jul 13, 2026
Medicaid ID
2138207 OH
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest obstetrics & gynecology physician records → All 1,572 in Ohio → Look up another NPI →

Also registered at 1400 E 2ND St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Souheil Al-JaddaSurgery Physician1174564090
  2. Ehab Ali, M.D.Internal Medicine Physician1346680907
  3. Christine Alt, SPSpeech-Language Pathologist1952530545
  4. Kholoud Amrou, CNPVascular Surgery Physician1831724897
  5. Megan Ashbacher, CNPFamily Nurse Practitioner1124544614
  6. James Atwell, MSN-CRNACertified Registered Nurse Anesthetist1750536397

Verify Robert Rowan Summers in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 34006606S    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Ohio license search

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Robert Rowan Summers among 1,572 obstetrics & gynecology physician records in Ohio

Robert Rowan Summers, D.O. is one of 1,572 obstetrics & gynecology physician records with a practice address in Ohio. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 83% newer
  • In a Medicare fileNo · 79% of these records are
  • In the CMS Doctors and Clinicians fileNo · 66% of these records are
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Ohio

There are 1,572 obstetrics & gynecology physician records in Ohio. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 1,572 in Ohio → Every provider in Defiance → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Kermit Erwin, MDDefiance, OH 435121821081464
  2. Bruce Kinney, MDDefiance, OH 435121235199696
  3. David Podboy, M.D.Defiance, OH 435121790075414
  4. Adnan Al-Khaleefa, MDBryan, OH 435061578696795
  5. Robert Arrom, M.D.Bryan, OH 435061487664256
  6. Hanan Bazzi, M.D.Bryan, OH 435061396189718
  7. Mohamed El Nemr, MDBryan, OH 435061619160553
  8. Ioanna Kanellitsas, MDBryan, OH 435061932282738

Common questions

What is Robert Rowan Summers, D.O.'s NPI number?

Robert Rowan Summers, D.O.'s National Provider Identifier (NPI) is 1326020298, issued on Nov 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Robert Rowan Summers, D.O. located?

The NPPES record lists a practice address at 1400 E 2ND St, Defiance, OH, 43512. Phone: (419) 784-1414. Providers update this record themselves, so call before visiting.

How can I verify Robert Rowan Summers, D.O.'s license?

NPPES lists Ohio license number 34006606S, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.