Katherine E. Johnson, M.D.
Internal Medicine Physician · Kenton, OH
Katherine E. Johnson, M.D. is an internal medicine physician with a practice address in Kenton, Ohio, and NPI 1508912361, issued on Jan 26, 2007. Check the license (Ohio 35-067998, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Katherine E. Johnson
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 35-067998 OH
Self-reported in NPPES; status is on the state search - Practice location
- 60 Washington Blvd, Kenton, OH 43326
- Phone
- (419) 673-8689
- Enumerated
- Jan 26, 2007
- Record last updated
- Dec 8, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (419) 673-9492
- Medicaid IDs
- 2326754 OH
0145122 OH - Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 60 Washington Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christina Crum, MDInternal Medicine Physician1215270236
- Judith Hruschka, M.D.Internal Medicine Physician1053467803
- Danita Podach, PACPhysician Assistant1255387841
Verify Katherine E. Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35-067998Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
151 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims.
Most prescribed
- Tradjenta21 claims
- Donepezil Hcl14 claims
- Memantine Hcl Er13 claims
- Levothyroxine Sodium11 claims
- Ropinirole Hcl11 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.
Katherine E. Johnson among 5,277 internal medicine physician records in Ohio
Katherine E. Johnson, M.D. is one of 5,277 internal medicine physician records with a practice address in Ohio. 81% 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 45% of them.
- NPI issued2007 · 45% of these records are older, 48% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2014 · 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 207R00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 internal medicine physician records list a practice address in Kenton
They are 6 of the 198 NPPES records with a practice address in Kenton, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Kenton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Christina Crum, MDKenton, OH 433261215270236
- Kalyan Das, MDKenton, OH 433261124042916
- Murlidhar Deshmukh, MDKenton, OH 433261073697454
- Hatem Elhady, M.D.Kenton, OH 433261669442695
- Judith Hruschka, M.D.Kenton, OH 433261053467803
- William Addington, DOMarengo, OH 433341003807033
- Greg Hilbert, DOMarengo, OH 433341992408660
- Keri Harris, MDCarey, OH 433161265487714
Common questions
What is Katherine E. Johnson, M.D.'s NPI number?
Katherine E. Johnson, M.D.'s National Provider Identifier (NPI) is 1508912361, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Katherine E. Johnson, M.D. located?
The NPPES record lists a practice address at 60 Washington Blvd, Kenton, OH, 43326. Phone: (419) 673-8689. Providers update this record themselves, so call before visiting.
How can I verify Katherine E. Johnson, M.D.'s license?
NPPES lists Ohio license number 35-067998, 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 Katherine E. Johnson, M.D. prescribe under Medicare Part D?
In 2024, Katherine E. Johnson, M.D. had 151 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.