Marilynn Frederiksen, M.D.
NPI 1811996796 · Maternal & Fetal Medicine Physician · Milwaukee, WI
Marilynn Frederiksen, M.D. is a Maternal & Fetal Medicine Physician provider in Milwaukee, WI (NPI 1811996796).
Provider details
- NPI number
- 1811996796
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 36058725 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-07-21
- Last updated
- 2019-09-04
Frequently asked questions
- What is Marilynn Frederiksen's NPI number?
- Marilynn Frederiksen's National Provider Identifier (NPI) is 1811996796, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marilynn Frederiksen's specialty?
- Marilynn Frederiksen is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marilynn Frederiksen located?
- Marilynn Frederiksen's practice location on file with NPPES is 945 N 12th St, Milwaukee, WI 53233-1305.
- What is Marilynn Frederiksen's phone number?
- The practice phone number listed in the NPPES registry for Marilynn Frederiksen is (414) 219-7956.
- Is Marilynn Frederiksen's NPI active?
- Yes — Marilynn Frederiksen's NPI (1811996796) is active in the NPPES registry as of the last update on 2019-09-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.