Kristen Marie Duffy, D.O.
Internal Medicine Physician · Columbus, OH
Kristen Marie Duffy, D.O. is an internal medicine physician with a practice address in Columbus, Ohio, and NPI 1598152316, issued on Apr 20, 2015. Check the license (Ohio 34.013238, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Kristen Marie Duffy
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 34.013238 OH
Self-reported in NPPES; status is on the state search - Practice location
- 793 W State St, Columbus, OH 43222
- Phone
- (513) 368-4024
- Enumerated
- Apr 20, 2015
- Record last updated
- Aug 14, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20181026000943); accepts Medicare assignment
- Medical or professional school
- Ohio University, College Of Osteopathic Medicine, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,277 in Ohio → Look up another NPI →
Also registered at 793 W State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joseph Bach, MDAnatomic Pathology & Clinical Pathology Physician1710971916
Verify Kristen Marie Duffy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 34.013238Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average internal medicine physician in 2024
281 Medicare Part D claims for 118 beneficiaries, 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. 19 claims were for opioids.
Most prescribed
- Oxycodone Hcl15 claims
- Carvedilol12 claims
- Pantoprazole Sodium12 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
- Central Ohio Hospitalists, IncColumbus, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kristen Marie Duffy among 5,277 internal medicine physician records in Ohio
Kristen Marie Duffy, 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 2015, is newer than 71% of them.
- NPI issued2015 · 71% of these records are older, 27% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2015 · median 2006 among the 3,414 with a school on file
- Record last updated2018 · 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
- Kamel Addo, MDColumbus, OH 432221700864626
- Ronald Bloomfield, MDColumbus, OH 432221578635868
- Thomas Brady, MDColumbus, OH 432221316980741
- Glenn Ciolli, M.D.Columbus, OH 432221265410708
- Maria Coccia, MDColumbus, OH 432221942316880
- Michael Cooney, M.D.Columbus, OH 432221447220876
- Briana Donaldson, D.O.Columbus, OH 432221669663829
- G. Patrick Ecklar, MDColumbus, OH 432221497702476
Common questions
What is Kristen Marie Duffy, D.O.'s NPI number?
Kristen Marie Duffy, D.O.'s National Provider Identifier (NPI) is 1598152316, issued on Apr 20, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Kristen Marie Duffy, D.O. located?
The NPPES record lists a practice address at 793 W State St, Columbus, OH, 43222. Phone: (513) 368-4024. Providers update this record themselves, so call before visiting.
How can I verify Kristen Marie Duffy, D.O.'s license?
NPPES lists Ohio license number 34.013238, 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 Kristen Marie Duffy, D.O. prescribe under Medicare Part D?
In 2024, Kristen Marie Duffy, D.O. had 281 Medicare Part D claims for 118 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.