Oncology Alliance, S.c.
NPI 1689860132 · Hematology & Oncology Physician · Wauwatosa, WI
Oncology Alliance, S.c. is a Hematology & Oncology Physician organization in Wauwatosa, WI (NPI 1689860132).
Provider details
- NPI number
- 1689860132
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Michael Koroscik, Chief Operating Officer(414) 906-4467
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
18 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
- 2007-09-19
- Last updated
- 2007-09-19
Frequently asked questions
- What is Oncology Alliance, S.c.'s NPI number?
- Oncology Alliance, S.c.'s National Provider Identifier (NPI) is 1689860132, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Oncology Alliance, S.c.?
- Oncology Alliance, S.c. is classified in the NPPES registry as Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Oncology Alliance, S.c. located?
- Oncology Alliance, S.c.'s practice location on file with NPPES is 1055 N Mayfair Rd, Wauwatosa, WI 53226-3436.
- What is Oncology Alliance, S.c.'s phone number?
- The practice phone number listed in the NPPES registry for Oncology Alliance, S.c. is (414) 906-4467.
- Who is the authorized official for Oncology Alliance, S.c.?
- The authorized official listed on Oncology Alliance, S.c.'s NPPES record is Michael Koroscik, Chief Operating Officer. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Oncology Alliance, S.c.'s NPI active?
- Yes — Oncology Alliance, S.c.'s NPI (1689860132) is active in the NPPES registry as of the last update on 2007-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.