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

Nathan C Grunwald, MD

Individual provider Family Medicine Physician · NPI 1073549887

Nathan C Grunwald, MD is a Family Practice in Menasha, Wisconsin. Graduated from Medical College of Wisconsin in 2003, 23 years ago. Practices with Thedacare, Incorporated, a 654-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
23
Trained at
Medical College of Wisconsin
Licensed in
WI
In the registry since
2006
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

2005 Midway Rd
Menasha, WI 54952-7002
Phone: (920) 832-8500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 47609-020 (WI)

Record details

NPI number1073549887
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 23, 2006
Last updated in NPPESMarch 13, 2012
Mailing addressPo Box 8003, Appleton, WI 54912-8003

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 2003 (23 years in practice)
Group practice Thedacare, Incorporated — 654 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations10 on file with Medicare

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