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

Dr. John Oak, MD

Individual provider Cardiovascular Disease Physician · NPI 1124026646

Dr. John Oak, MD is a Cardiovascular Disease Physician in Evansville, Indiana. Licensed in Indiana. Registered with an NPI since 2005.

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

1400 Professional Blvd
Evansville, IN 47714-8005
Phone: (812) 473-2642
Fax: (812) 474-4458
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 01027388A (IN)

Record details

NPI number1124026646
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 8, 2005
Last updated in NPPESJuly 13, 2026
Mailing address1400 Professional Blvd, Evansville, IN 47714-8005

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