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

Dr. John Michael Hartnett, MD

Individual provider Infectious Disease Physician · NPI 1366452146

Dr. John Michael Hartnett, MD is an Infectious Disease Physician in Bloomington, Indiana. Practices as a sole proprietor. Licensed in California and Indiana.

Licensed in
CA, IN
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

5365 W Cobblestone St
Bloomington, IN 47403-8204
Phone: (415) 548-1885
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence G72166 (CA)
Infectious Disease Physician Taxonomy 207RI0200X · Licence 01088532A (IN)

Record details

NPI number1366452146
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 8, 2006
Last updated in NPPESApril 2, 2025
Certification dateApril 2, 2025

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