James D. Diethelm, MD
Family Medicine Physician · Sylvania, OH
James D. Diethelm, MD is a family medicine physician with a practice address in Sylvania, Ohio, and NPI 1093710410, issued on Jun 14, 2005. Check the license (Ohio 35041896, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- James D. Diethelm
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 35041896 OH
Self-reported in NPPES; status is on the state search - Practice location
- 7640 Sylvania Avenue, Sylvania, OH 43560
- Phone
- (419) 473-2273
- Enumerated
- Jun 14, 2005
- Record last updated
- May 1, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (419) 473-0474
- Medicaid ID
- 0411969 OH
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,606 in Ohio → Look up another NPI →
Also registered at 7640 Sylvania Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Steve Cygan, M.ED P.T.Physical Therapist1841307790
- Ryan Szenderski, P APhysician Assistant1053538512
Verify James D. Diethelm in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35041896Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
80% fewer Medicare Part D claims than the average family medicine physician in 2024
721 Medicare Part D claims for 288 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium47 claims
- Amlodipine Besylate31 claims
- Tamsulosin Hcl31 claims
- Levothyroxine Sodium30 claims
- Metformin Hcl29 claims
- Lisinopril26 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.
James D. Diethelm among 5,606 family medicine physician records in Ohio
James D. Diethelm, MD is one of 5,606 family medicine physician records with a practice address in Ohio. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 82% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2012 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
40 family medicine physician records list a practice address in Sylvania
They are 40 of the 881 NPPES records with a practice address in Sylvania, and 5,606 family medicine physician records in Ohio.
All 5,606 in Ohio → Every provider in Sylvania → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kristen Bodine-Zeller, MDSylvania, OH 435601427057314
- George Darah, DOSylvania, OH 435601215936125
- Fuad Elhusain Elnegres, M.D.Sylvania, OH 435601972502995
- Christine Ellis, M.D.Sylvania, OH 435601316947591
- Kelly Emch, MDSylvania, OH 435601649272444
- Judith Furlong, M.D.Sylvania, OH 435601902802804
- Jeanine Huttner, M.D.Sylvania, OH 435601184620015
- Sanjiv Josh, MDSylvania, OH 435601942209614
Common questions
What is James D. Diethelm, MD's NPI number?
James D. Diethelm, MD's National Provider Identifier (NPI) is 1093710410, issued on Jun 14, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James D. Diethelm, MD located?
The NPPES record lists a practice address at 7640 Sylvania Avenue, Sylvania, OH, 43560. Phone: (419) 473-2273. Providers update this record themselves, so call before visiting.
How can I verify James D. Diethelm, MD's license?
NPPES lists Ohio license number 35041896, 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 D. Diethelm, MD prescribe under Medicare Part D?
In 2024, James D. Diethelm, MD had 721 Medicare Part D claims for 288 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.