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

Dr. John Mirro, MD

Individual provider Gastroenterology Physician · NPI 1689678955

Dr. John Mirro, MD is a Gastroenterology in Merrillville, Indiana. Graduated from Indiana University School of Medicine in 1972, 54 years ago. Practices with The Methodist Hospitals Inc, a 131-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
54
Trained at
Indiana University School of Medicine
Licensed in
IN
In the registry since
2005
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

101 E 87th Ave Ste 420
Merrillville, IN 46410-7335
Phone: (219) 758-5008
Fax: (219) 758-5009
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 7895 Grand Blvd, Hobart, IN 46342-6665 — (219) 758-5008

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 01024382A (IN)

Record details

NPI number1689678955
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 2, 2005
Last updated in NPPESMarch 15, 2023
Certification dateMarch 15, 2023
Mailing address7895 Grand Blvd, Hobart, IN 46342-6665

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesINTERNAL MEDICINE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 1972 (54 years in practice)
Group practice The Methodist Hospitals Inc — 131 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Merrillville