Fox Valley Hematology & Oncology, S.c.
NPI 1649716358 · Hematology & Oncology Physician · De Pere, WI
Fox Valley Hematology & Oncology, S.c. is a Hematology & Oncology Physician organization in De Pere, WI (NPI 1649716358).
Provider details
- NPI number
- 1649716358
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- William Guenther, Officer/Physician(920) 749-1171
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-01-19
- Last updated
- 2017-01-19
Frequently asked questions
- What is Fox Valley Hematology & Oncology, S.c.'s NPI number?
- Fox Valley Hematology & Oncology, S.c.'s National Provider Identifier (NPI) is 1649716358, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Fox Valley Hematology & Oncology, S.c.?
- Fox Valley Hematology & Oncology, S.c. is classified in the NPPES registry as Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Fox Valley Hematology & Oncology, S.c. located?
- Fox Valley Hematology & Oncology, S.c.'s practice location on file with NPPES is 1716 Lawrence Dr, De Pere, WI 54115-9108.
- What is Fox Valley Hematology & Oncology, S.c.'s phone number?
- The practice phone number listed in the NPPES registry for Fox Valley Hematology & Oncology, S.c. is (920) 749-1171.
- Who is the authorized official for Fox Valley Hematology & Oncology, S.c.?
- The authorized official listed on Fox Valley Hematology & Oncology, S.c.'s NPPES record is William Guenther, Officer/Physician. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Fox Valley Hematology & Oncology, S.c.'s NPI active?
- Yes — Fox Valley Hematology & Oncology, S.c.'s NPI (1649716358) is active in the NPPES registry as of the last update on 2017-01-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.