NPPES file of Aug 9, 2026

James David Leonard, M.D.

Emergency Medicine Physician · Newark, OH

James David Leonard, M.D. is an emergency medicine physician with a practice address in Newark, Ohio, and NPI 1881881480, issued on Sep 27, 2007. Check the license (Ohio 35.091381, 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
1881881480
Name
James David Leonard
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
35.091381 OH
57.010347 OH
Self-reported in NPPES; status is on the state search
Practice location
1320 West Main St, Newark, OH 43055
Phone
(220) 564-4151
Enumerated
Sep 27, 2007
Record last updated
Jul 21, 2022
Fax
(220) 564-7153
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 1320 West Main St

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

  1. Dustin Alspach, CRNACertified Registered Nurse Anesthetist1598067209
  2. Linda Clark, M.D.Emergency Medicine Physician1659390029
  3. Maria Defante, M.D.Anesthesiology Physician1811106289
  4. Mark Hacker, P.A.-C.Physician Assistant1861591836
  5. Laura Higgins, M.D.Emergency Medicine Physician1861618357
  6. Brian Korn, DOEmergency Medicine Physician1912988155

Verify James David Leonard 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 35.091381    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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93% fewer Medicare Part D claims than the average emergency medicine physician in 2024

15 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.

  1. James Leonard15
  2. Specialty average226

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.

28 emergency medicine physician records list a practice address in Newark

They are 28 of the 1,642 NPPES records with a practice address in Newark, and 3,002 emergency medicine physician records in Ohio.

All 28 in Newark → All 3,002 in Ohio → Every provider in Newark →

Other emergency medicine physician records in Ohio

  1. Alexandra Abangan, MDSpringfield, OH1508121641
  2. Brian Abbott, MDColumbus, OH1841591757
  3. Abdalla Abdalla, MDLima, OH1952046682
  4. Ali Abdallah, DOCanton, OH1134749997
  5. Anthony Abdullah, M.D.Hamilton, OH1457319386
  6. Najee Abou Arraj, MDCleveland, OH1780181420
  7. Mikhael Abourjeily, D.O.Mentor, OH1982689758
  8. Michael Abrahams, M.D.Logan, OH1487098463
  9. Arun Acharekar, MDMansfield, OH1659411544
  10. Kevin Ackley, MDCincinnati, OH1952340903

Common questions

What is James David Leonard, M.D.'s NPI number?

James David Leonard, M.D.'s National Provider Identifier (NPI) is 1881881480, issued on Sep 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is James David Leonard, M.D. located?

The NPPES record lists a practice address at 1320 West Main St, Newark, OH, 43055. Phone: (220) 564-4151. Providers update this record themselves, so call before visiting.

How can I verify James David Leonard, M.D.'s license?

NPPES lists Ohio license number 35.091381, 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.

How much does James David Leonard, M.D. prescribe under Medicare Part D?

In 2024, James David Leonard, M.D. had 15 Medicare Part D claims; the average among emergency medicine physician prescribers was 226. 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.

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.