NPPES file of Aug 9, 2026

Robert William Jonath, NP-C

Family Nurse Practitioner · Willoughby, OH

Robert William Jonath, NP-C is a family nurse practitioner with a practice address in Willoughby, Ohio, and NPI 1003282328, issued on Aug 20, 2015. Check the license (Ohio COA.17934-NP, as entered in NPPES) with the Ohio board that licenses this profession; 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
1003282328
Name
Robert William Jonath
Credential
NP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
COA.17934-NP OH
Self-reported in NPPES; status is on the state search
Practice location
36000 Euclid Avenue, Willoughby, OH 44094
Phone
(440) 953-9600
Enumerated
Aug 20, 2015
Record last updated
Jan 16, 2017 (not updated in 9 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20151211001245); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Robert William Jonath in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Ohio board licenses this profession
    Search for license COA.17934-NP
    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
Find the Ohio license search

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72% fewer Medicare Part D claims than the average family nurse practitioner in 2024

364 Medicare Part D claims for 275 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims. 42 claims were for opioids.

  1. Robert Jonath364
  2. Specialty average1,305

Most prescribed

  1. Prednisone59 claims
  2. Cephalexin38 claims
  3. Doxycycline Monohydrate26 claims
  4. Methocarbamol20 claims
  5. Oxycodone-Acetaminophen18 claims
  6. Clindamycin Hcl17 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.

Bills Medicare through one group practice

  1. Emergency Medicine Physicians OF Lake County LtdWilloughby, OH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Robert William Jonath among 9,647 family nurse practitioner records in Ohio

Robert William Jonath, NP-C 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 2015, is newer than 26% of them.

  • NPI issued2015 · 26% of these records are older, 68% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2015 · median 2018 among the 6,366 with a school on file
  • Record last updated2017 · 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).

36 family nurse practitioner records list a practice address in Willoughby

They are 36 of the 1,110 NPPES records with a practice address in Willoughby, and 9,647 family nurse practitioner records in Ohio.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Shannon Bailey, APRNWilloughby, OH 440941356709265
  2. Sherry Clemente, CNPWilloughby, OH 440941528494531
  3. Tawana CunninghamWilloughby, OH 440941841674009
  4. Malissa Delgrosso, FNPWilloughby, OH 440941326395211
  5. Carolyn Dixon, CNPWilloughby, OH 440941003153644
  6. Enoch Farmer, CNPWilloughby, OH 440941316273378
  7. Barbara Hartley, FNP-CWilloughby Hills, OH 440941952709297
  8. Jeffrey Jordan, NP-CWilloughby, OH 440941770890055

Common questions

What is Robert William Jonath, NP-C's NPI number?

Robert William Jonath, NP-C's National Provider Identifier (NPI) is 1003282328, issued on Aug 20, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Robert William Jonath, NP-C located?

The NPPES record lists a practice address at 36000 Euclid Avenue, Willoughby, OH, 44094. Phone: (440) 953-9600. Providers update this record themselves, so call before visiting.

How can I verify Robert William Jonath, NP-C's license?

NPPES lists Ohio license number COA.17934-NP, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.

How much does Robert William Jonath, NP-C prescribe under Medicare Part D?

In 2024, Robert William Jonath, NP-C had 364 Medicare Part D claims for 275 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

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.