Margaret Krenn, NNP
NPI 1801370424 · Neonatal Nurse Practitioner · Saint Louis, MO
Margaret Krenn, NNP is a Neonatal Nurse Practitioner provider in Saint Louis, MO (NPI 1801370424).
Provider details
- NPI number
- 1801370424
- Entity type
- Individual
- Primary specialty
- Neonatal Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NNP
- Sex
- Female
- Sole proprietor
- No
- License
- 2004007033 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2018-09-19
- Last updated
- 2018-09-19
Frequently asked questions
- What is Margaret Krenn's NPI number?
- Margaret Krenn's National Provider Identifier (NPI) is 1801370424, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Krenn's specialty?
- Margaret Krenn is listed in the NPPES registry with a primary specialty of Neonatal Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Krenn located?
- Margaret Krenn's practice location on file with NPPES is 621 S New Ballas Rd Ste 2016b, Saint Louis, MO 63141-8265.
- What is Margaret Krenn's phone number?
- The practice phone number listed in the NPPES registry for Margaret Krenn is (314) 251-6450.
- Is Margaret Krenn's NPI active?
- Yes — Margaret Krenn's NPI (1801370424) is active in the NPPES registry as of the last update on 2018-09-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.