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

Dr. Ernest L Mazzaferri Jr., MD

Individual provider Interventional Cardiology Physician · NPI 1225084668

Dr. Ernest L Mazzaferri Jr., MD is an Interventional Cardiology in Columbus, Ohio. Graduated from Ohio State University College of Medicine in 1999, 27 years ago. Practices with Osu Internal Medicine LLC, a 1,145-clinician group and accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
27
Trained at
Ohio State University College of Medicine
Licensed in
OH
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

452 W 10th Ave
Columbus, OH 43210-1240
Phone: (614) 293-7677
Fax: (614) 293-5614
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Interventional Cardiology Physician (primary) Taxonomy 207RI0011X · Licence 35.079058 (OH)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 35.079058 (OH)

Record details

NPI number1225084668
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 26, 2006
Last updated in NPPESApril 20, 2026
Certification dateApril 20, 2026

Medicare enrollment

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

Medicare specialtyINTERVENTIONAL CARDIOLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Osu Internal Medicine Llc — 1145 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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