Elizabeth Mertens, MD
NPI 1366949216 · Pediatrics Physician · Milwaukee, WI
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elizabeth Mertens, MD is a Pediatrics Physician provider in Milwaukee, WI (NPI 1366949216).
Provider details
- NPI number
- 1366949216
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 83432-20 (WI)
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
8 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
- 2018-04-08
- Last updated
- 2024-10-09
- Certified
- 2024-10-09
Frequently asked questions
- What is Elizabeth Mertens's NPI number?
- Elizabeth Mertens's National Provider Identifier (NPI) is 1366949216, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elizabeth Mertens's specialty?
- Elizabeth Mertens is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Elizabeth Mertens located?
- Elizabeth Mertens's practice location on file with NPPES is 8915 W Connell Ave, Milwaukee, WI 53226-3067.
- What is Elizabeth Mertens's phone number?
- The practice phone number listed in the NPPES registry for Elizabeth Mertens is (414) 337-7050.
- Does Elizabeth Mertens accept Medicare?
- Elizabeth Mertens is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elizabeth Mertens's NPI active?
- Yes — Elizabeth Mertens's NPI (1366949216) is active in the NPPES registry as of the last update on 2024-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.