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.
- 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
8 nearest emergency medicine physician records → All 3,002 in Ohio → Look up another NPI →
Also registered at 1320 West Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Dustin Alspach, CRNACertified Registered Nurse Anesthetist1598067209
- Linda Clark, M.D.Emergency Medicine Physician1659390029
- Maria Defante, M.D.Anesthesiology Physician1811106289
- Mark Hacker, P.A.-C.Physician Assistant1861591836
- Laura Higgins, M.D.Emergency Medicine Physician1861618357
- Brian Korn, DOEmergency Medicine Physician1912988155
Verify James David Leonard in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.091381Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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.
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.
James David Leonard among 3,002 emergency medicine physician records in Ohio
James David Leonard, M.D. is one of 3,002 emergency medicine physician 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 2007, is newer than 37% of them.
- NPI issued2007 · 37% of these records are older, 55% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2022 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
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 3,002 in Ohio → Every provider in Newark → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Joel Anders, DONewark, OH 430551780622563
- Jeff Bare, DONewark, OH 430551629076898
- Terrill Burnworth, DONewark, OH 430551578561676
- Kevin Finley, MDNewark, OH 430551205835394
- Scott Jolly, DONewark, OH 430551790783694
- Randy Jones, MDNewark, OH 430551104824002
- Brian Korn, DONewark, OH 430551912988155
- Ryan Longstreth, M.D.Newark, OH 430551447290580
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.
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.