NPPES file of Aug 9, 2026

Katherine J. Gerlach, MD

Pediatrics Physician · Toledo, OH

Katherine J. Gerlach, MD is a pediatrics physician with a practice address in Toledo, Ohio, and NPI 1609094473, issued on Apr 24, 2007. Check the license (Ohio 35.089023, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1609094473
Name
Katherine J. Gerlach
Credential
MD
Primary taxonomy
Pediatrics Physician 208000000X
License number
35.089023 OH
Self-reported in NPPES; status is on the state search
Practice location
3922 Woodley RD, Toledo, OH 43606
Phone
(419) 291-2121
Enumerated
Apr 24, 2007
Record last updated
Nov 3, 2023
Fax
(419) 479-6017
Medicaid ID
2751071 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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Also registered at 3922 Woodley RD

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

  1. Mohammed Abusamieh, M.DRheumatology Physician1174506109
  2. Susan Clay-Hufford, MDPediatrics Physician1407848385
  3. Gary Collins, MDPediatrics Physician1396738373
  4. Terra Zare, CNPFamily Nurse Practitioner1063834570

Verify Katherine J. Gerlach 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 35.089023
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Industry payments in 2024: $469.37

25 payments; by number, the most common kind was food and beverage; the largest payer was Corium, LLC. The 21,580 providers of this specialty with any payment received $842.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katherine Gerlach$469.37
  2. Specialty average$842.05

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Katherine J. Gerlach among 2,972 pediatrics physician records in Ohio

Katherine J. Gerlach, MD is one of 2,972 pediatrics physician records with a practice address in Ohio. 35% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 41% of them.

  • NPI issued2007 · 41% of these records are older, 50% newer
  • In a Medicare fileYes · 35% of these records are
  • In the CMS Doctors and Clinicians fileNo · 10% of these records are
  • Record last updated2023 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatrics Physician providers in Ohio

There are 2,972 pediatrics physician records in Ohio.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Samrah Al-Sayed, M.D.Toledo, OH 436061891791885
  2. Brenda Barshel, MDToledo, OH 436061417959263
  3. Alan Burlingame, MDToledo, OH 436061992797872
  4. Susan Clay-Hufford, MDToledo, OH 436061407848385
  5. Gary Collins, MDToledo, OH 436061396738373
  6. Santosh Dev, MDToledo, OH 436061689667644
  7. Adiba Hamad, MDToledo, OH 436061376545129
  8. Ziad Jaara, M.D.Toledo, OH 436061215933155

Common questions

What is Katherine J. Gerlach, MD's NPI number?

Katherine J. Gerlach, MD's National Provider Identifier (NPI) is 1609094473, issued on Apr 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Katherine J. Gerlach, MD located?

The NPPES record lists a practice address at 3922 Woodley RD, Toledo, OH, 43606. Phone: (419) 291-2121. Providers update this record themselves, so call before visiting.

How can I verify Katherine J. Gerlach, MD's license?

NPPES lists Ohio license number 35.089023, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

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.