Ellen Diefenderfer, PA-C
Physician Assistant · Columbus, OH
Ellen Diefenderfer, PA-C is a physician assistant with a practice address in Columbus, Ohio, and NPI 1073909289, issued on Apr 14, 2015. Check the license with the Ohio board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ellen Diefenderfer
- Credential
- PA-C
- Primary taxonomy
- Physician Assistant 363A00000X
- Practice location
- 300 W 10TH Ave FL 2, Columbus, OH 43210
- Phone
- (614) 293-9059
- Enumerated
- Apr 14, 2015
- Entity
- Type 1 · individual
Also registered at 300 W 10TH Ave FL 2
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ellen Diefenderfer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Ohio board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
92% fewer Medicare Part D claims than the average physician assistant in 2024
63 Medicare Part D claims for 39 beneficiaries, against an average of 832 among the 95,030 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Gabapentin14 claims
- Oxycodone Hcl14 claims
- Tramadol 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.
The Medicare quality score for 2023: 95.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,961.55
13 payments, mostly travel and lodging; the largest payer was Intuitive Surgical, Inc.. The 61,144 providers of this specialty with any payment received $853.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital or facility affiliation
- Osu Surgery, LLCColumbus, OH
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
694 physician assistant records list a Columbus practice address
They are 694 of the 36,491 NPPES records with a Columbus practice address, and 5,059 physician assistant records in Ohio.
All 694 in Columbus → All 5,059 in Ohio → Every provider in Columbus →
Other physician assistant records in Ohio
- Ali Abady, PA-CWesterville, OH1790268795
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- Nadia Abdallah, PA-CElyria, OH1669839874
- Sarah Abdallah, PA-CCenterville, OH1730446162
- Tony Abdulkarim, PA-CCleveland, OH1750772711
- Krislyn Aberegg, PA-CCleveland, OH1093233082
- Jennie Abernathy, PACleveland, OH1255003398
- Molly Abourezk, PA-CCincinnati, OH1306330006
- Hadil AbourjeilyCleveland, OH1821632068
- Hala AbuenaajYoungstown, OH1174339055
Common questions
What is Ellen Diefenderfer, PA-C's NPI number?
Ellen Diefenderfer, PA-C's National Provider Identifier (NPI) is 1073909289, issued on Apr 14, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Ellen Diefenderfer, PA-C located?
The NPPES record lists a practice address at 300 W 10TH Ave FL 2, Columbus, OH, 43210. Phone: (614) 293-9059. Providers update this record themselves, so call before visiting.
How can I verify Ellen Diefenderfer, PA-C's license?
Search the Ohio board that licenses this profession; the NPPES record confirms identity only.
How much does Ellen Diefenderfer, PA-C prescribe under Medicare Part D?
In 2024, Ellen Diefenderfer, PA-C had 63 Medicare Part D claims for 39 beneficiaries; the average among physician assistant prescribers was 832. Part D covers Medicare prescriptions only.
What is Ellen Diefenderfer, PA-C's Medicare quality score?
The 2023 MIPS final score is 95.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.