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

John W Constantakis, DO

Individual provider Neurology Physician · NPI 1669051405

John W Constantakis, DO is a Neurology Physician in Madison, Wisconsin. Licensed in Wisconsin. Registered with an NPI since 2021.

Licensed in
WI
In the registry since
2021
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

800 University Bay Dr Ste 300
Madison, WI 53705-2299
Phone: (608) 264-3093
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 77601-21 (WI)
Neurology Physician Taxonomy 2084N0400X · Licence 77601-21 (WI)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X (WI)

Record details

NPI number1669051405
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 7, 2021
Last updated in NPPESSeptember 8, 2023
Certification dateSeptember 8, 2023
Mailing address800 University Bay Dr Ste 300, Madison, WI 53705-2299

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