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

Mark E Tiritilli

Individual provider Internal Medicine Physician · NPI 1538119953

Mark E Tiritilli is an Internal Medicine in Indianapolis, Indiana. Graduated from Loyola University of Chicago, Stritch School of Medicine in 1991, 35 years ago. Practices with The Health and Hospital Corporation of Marion County, a 241-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
35
Trained at
Loyola University of Chicago, Stritch School of Medicine
Licensed in
IN
In the registry since
2006
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Practice location Address checks out

9443 E 38th St
Indianapolis, IN 46235-2132
Phone: (317) 890-2100
Fax: (317) 890-2171
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 01043935A (IN)

Record details

NPI number1538119953
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedMay 10, 2006
Last updated in NPPESOctober 2, 2025
Certification dateOctober 2, 2025
Mailing addressPo Box 637764, Cincinnati, OH 45263-7764

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolLOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Graduated 1991 (35 years in practice)
Group practice The Health And Hospital Corporation Of Marion County — 241 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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