OrganizationActive
Ob-Gyn Associates, S.c.
NPI 1538298518 · Specialist · Brookfield, WI
Ob-Gyn Associates, S.c. is a Specialist organization in Brookfield, WI (NPI 1538298518).
Provider details
- NPI number
- 1538298518
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- William Martens, Owner(262) 780-4000
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(89/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
19475 W North Ave
Suite 400
Brookfield, WI 53045-4199
Phone: (262) 780-4000
Fax: (262) 780-4090
Street-level locationGet directions
Mailing address
19475 W North Ave
Brookfield, WI 53045-4199
Registry dates
- Enumerated
- 2007-03-05
- Last updated
- 2020-08-22
Frequently asked questions
- What is Ob-Gyn Associates, S.c.'s NPI number?
- Ob-Gyn Associates, S.c.'s National Provider Identifier (NPI) is 1538298518, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Ob-Gyn Associates, S.c.?
- Ob-Gyn Associates, S.c. is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Ob-Gyn Associates, S.c. located?
- Ob-Gyn Associates, S.c.'s practice location on file with NPPES is 19475 W North Ave, Brookfield, WI 53045-4199.
- What is Ob-Gyn Associates, S.c.'s phone number?
- The practice phone number listed in the NPPES registry for Ob-Gyn Associates, S.c. is (262) 780-4000.
- Who is the authorized official for Ob-Gyn Associates, S.c.?
- The authorized official listed on Ob-Gyn Associates, S.c.'s NPPES record is William Martens, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Ob-Gyn Associates, S.c.'s NPI active?
- Yes — Ob-Gyn Associates, S.c.'s NPI (1538298518) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.