Katherine Hertzfeld
Family Nurse Practitioner · Toledo, OH
Katherine Hertzfeld is a family nurse practitioner with a practice address in Toledo, Ohio, and NPI 1568039485, issued on Jun 9, 2021. Check the license (Ohio 0028646, as entered in NPPES) with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Hertzfeld
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 0028646 OH
F12200922 OH
Self-reported in NPPES; status is on the state search - Practice location
- 4925 Jackman RD, Toledo, OH 43613
- Phone
- (419) 473-1715
- Enumerated
- Jun 9, 2021
- Record last updated
- Sep 14, 2022
- Medicare enrollment
- Enrolled (PECOS I20210716001954); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 9,647 in Ohio → Look up another NPI →
Also registered at 4925 Jackman RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Abraham Abdulsalam, PHARMD, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1528608841
- Patrick Amsdell, PHARMDPharmacist1700310471
- Lina BarakatFamily Nurse Practitioner1912123902
- Elaina Burton, RPHPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1366324196
- Jamie HallockFamily Nurse Practitioner1598250557
- Daniel Iott, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1972107050
Verify Katherine Hertzfeld in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this profession
Search for license 0028646Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average family nurse practitioner in 2024
133 Medicare Part D claims for 95 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin-Clavulanate Potass26 claims
- Prednisone19 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $26.58
1 payment: food and beverage; the largest payer was Pfizer Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- The Little Clinic OF Ohio LLCBowling Green, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Hertzfeld among 9,647 family nurse practitioner records in Ohio
Katherine Hertzfeld is one of 9,647 family nurse practitioner records with a practice address in Ohio. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 68% of them.
- NPI issued2021 · 68% of these records are older, 24% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2020 · median 2018 among the 6,366 with a school on file
- Record last updated2022 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
329 family nurse practitioner records list a practice address in Toledo
They are 329 of the 13,583 NPPES records with a practice address in Toledo, and 9,647 family nurse practitioner records in Ohio.
All 9,647 in Ohio → Every provider in Toledo → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Lina BarakatToledo, OH 436131912123902
- Bridget Faricy-Beredo, FNPToledo, OH 436131447705124
- Jessica Frazee, CNPToledo, OH 436131750720355
- Jamie HallockToledo, OH 436131598250557
- Lisa MarciniakToledo, OH 436131396252748
- Courtney Saffle, NPToledo, OH 436131851852800
- Amanda Tedrick, CNPToledo, OH 436131518691690
- Alexis Wooten, NP-CToledo, OH 436131295157675
Common questions
What is Katherine Hertzfeld's NPI number?
Katherine Hertzfeld's National Provider Identifier (NPI) is 1568039485, issued on Jun 9, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Hertzfeld located?
The NPPES record lists a practice address at 4925 Jackman RD, Toledo, OH, 43613. Phone: (419) 473-1715. Providers update this record themselves, so call before visiting.
How can I verify Katherine Hertzfeld's license?
NPPES lists Ohio license number 0028646, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Hertzfeld prescribe under Medicare Part D?
In 2024, Katherine Hertzfeld had 133 Medicare Part D claims for 95 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
What is Katherine Hertzfeld's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.