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

Mary Joann Spiller, NP

Individual provider Nurse Practitioner · NPI 1639153877

Mary Joann Spiller, NP is a Nurse Practitioner in New London, Wisconsin. Qualified in 2002, 24 years ago. Practices with Thedacare, Incorporated, a 654-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois and Wisconsin.

Years since qualifying
24
Licensed in
IL, WI
In the registry since
2005
Specialties on file
3
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

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Practice location Address checks out

1405 Mill St
New London, WI 54961-2155
Phone: (920) 531-2400
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 4405 Weaver Pkwy, Warrenville, IL 60555-3269 — (630) 933-4950

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 2144 (WI)
Nurse Practitioner Taxonomy 363L00000X · Licence 209004508 (IL)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 2144 (WI)

Record details

NPI number1639153877
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorYes
NPI enumeratedDecember 1, 2005
Last updated in NPPESApril 25, 2023
Certification dateApril 25, 2023

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Thedacare, Incorporated — 654 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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