Melanie Janssen, MSN
NPI 1336614775 · Adult Health Nurse Practitioner · Chesterfield, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Melanie Janssen, MSN is a Adult Health Nurse Practitioner provider in Chesterfield, MO (NPI 1336614775).
Provider details
- NPI number
- 1336614775
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN
- Sex
- Female
- Sole proprietor
- No
- License
- 2018029052 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 86 | 41 |
| Amlodipine Besylate | 63 | 37 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 42 | 42 |
| Cephalexin | 30 | 28 |
| Nitrofurantoin Monohyd/M-Crystbrand: Nitrofurantoin Mono-Macro | 28 | 27 |
| Atorvastatin Calcium | 24 | 12 |
| Semaglutide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-10-12
- Last updated
- 2019-05-14
Frequently asked questions
- What is Melanie Janssen's NPI number?
- Melanie Janssen's National Provider Identifier (NPI) is 1336614775, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Melanie Janssen's specialty?
- Melanie Janssen is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Melanie Janssen located?
- Melanie Janssen's practice location on file with NPPES is 15740 S Outer 40 Rd, Chesterfield, MO 63017-2004.
- What is Melanie Janssen's phone number?
- The practice phone number listed in the NPPES registry for Melanie Janssen is (636) 735-4268.
- Does Melanie Janssen accept Medicare?
- Melanie Janssen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Melanie Janssen's NPI active?
- Yes — Melanie Janssen's NPI (1336614775) is active in the NPPES registry as of the last update on 2019-05-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.