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

John Walter Mack Jr., MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1962495358

John Walter Mack Jr., MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Knoxville, Tennessee. Licensed in Tennessee. Registered with an NPI since 2005.

Licensed in
TN
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

1940 Alcoa Hwy Ste E-180
Knoxville, TN 37920-2244
Phone: (865) 305-6955
Fax: (865) 637-5216
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 016544 (TN)

Record details

NPI number1962495358
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 31, 2005
Last updated in NPPESMarch 5, 2010
Mailing addressPo Box 440547, Nashville, TN 37244-0547

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