Courtney Certain, D.O.
Internal Medicine Physician · Columbus, OH
Courtney Certain, D.O. is an internal medicine physician with a practice address in Columbus, Ohio, and NPI 1144761305, issued on Mar 20, 2017. Check the license on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Courtney Certain
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 87028 MT
Self-reported in NPPES; status is on the state search - Practice location
- 3595 Olentangy River RD, Columbus, OH 43214
- Phone
- (614) 566-5456
- Enumerated
- Mar 20, 2017
- Record last updated
- Jun 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200629003227); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 3595 Olentangy River RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Courtney Certain in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of OhioCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
183 Medicare Part D claims for 92 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Atorvastatin Calcium20 claims
- Metoprolol Succinate11 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
- Cogent Healthcare OF Montana P CGreat Falls, MT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Courtney Certain among 5,277 internal medicine physician records in Ohio
Courtney Certain, D.O. 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 2017, is newer than 76% of them.
- NPI issued2017 · 76% of these records are older, 22% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2020 · median 2006 among the 3,414 with a school on file
- Record last updated2020 · 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).
580 internal medicine physician records list a practice address in Columbus
They are 580 of the 36,491 NPPES records with a practice address in Columbus, and 5,277 internal medicine physician records in Ohio.
All 5,277 in Ohio → Every provider in Columbus → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Melissa Brasco, D.O.Columbus, OH 432141841274305
- Timothy Coss, DOColumbus, OH 432141720071699
- Diana Donati, M.D.Columbus, OH 432141184628869
- Francine Giannetto, M.D.Columbus, OH 432141548243223
- William Gramann, M.D.Columbus, OH 432141093798779
- Marietta Hofmeister, M.D.Columbus, OH 432141639152317
- Joseph Jacko, MDColumbus, OH 432141730185844
- David Lahue, M.D.Columbus, OH 432141861476327
Common questions
What is Courtney Certain, D.O.'s NPI number?
Courtney Certain, D.O.'s National Provider Identifier (NPI) is 1144761305, issued on Mar 20, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Courtney Certain, D.O. located?
The NPPES record lists a practice address at 3595 Olentangy River RD, Columbus, OH, 43214. Phone: (614) 566-5456. Providers update this record themselves, so call before visiting.
How can I verify Courtney Certain, D.O.'s license?
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 Courtney Certain, D.O. prescribe under Medicare Part D?
In 2024, Courtney Certain, D.O. had 183 Medicare Part D claims for 92 beneficiaries; 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.