Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Chelsea Deffenbaugh, CNP

Individual provider Acute Care Nurse Practitioner · NPI 1033788799

Chelsea Deffenbaugh, CNP is a Nurse Practitioner in Columbus, Ohio. Qualified in 2019, 7 years ago. Practices with Osu Internal Medicine LLC, a 1,145-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
7
Licensed in
OH
In the registry since
2021
What do these letters mean?
CNP — Certified Nurse Practitioner
A certified nurse practitioner.

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Practice location Address checks out

410 W 10th Ave
Columbus, OH 43210-1240
Phone: (614) 293-4925
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence APRN.CNP.0029343 (OH)

Record details

NPI number1033788799
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNP
Sole proprietorNo
NPI enumeratedJune 17, 2021
Last updated in NPPESDecember 2, 2025
Certification dateDecember 2, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Osu Internal Medicine Llc — 1145 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients24
Services billed 37 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at Osu Internal Medicine LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1145 clinicians in the practice; 12 are shown here.

Other providers in Columbus