Provider Profile
No biography has been added yet. Is this you? Claim this profile to add one.
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1818 N MEADE ST STE 330
Appleton, WI 54911
9200 W Wisconsin Ave
Milwaukee, WI 53226
Spencer R. Gantz is an OB-GYN in Appleton, WI. That is the designation recorded for this NPI in the federal registry, where it is listed as “Obstetrics & Gynecology”.
NPI registry
Spencer R. Gantz is listed at 1818 N Meade St Ste 330, Appleton, WI 54911. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (920) 749-4000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Spencer R. Gantz's National Provider Identifier is 1639600547. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Spencer R. Gantz attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
Spencer R. Gantz has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
Not yet. This profile is built from public federal data and has not been confirmed by Spencer R. Gantz. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.