Margaret Wynn, FNP-C
NPI 1306306865 · Family Nurse Practitioner · Chesterfield, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Wynn, FNP-C is a Family Nurse Practitioner provider in Chesterfield, MO (NPI 1306306865).
Provider details
- NPI number
- 1306306865
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 2018027826 (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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 45 | 25 |
| Spironolactone | 38 | 17 |
| Empagliflozinbrand: Jardiance | 29 | — |
| Bumetanide | 22 | — |
| Losartan Potassium | 17 | 11 |
| Lisinopril | 14 | — |
| Rosuvastatin Calcium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-03-21
- Last updated
- 2019-05-14
Frequently asked questions
- What is Margaret Wynn's NPI number?
- Margaret Wynn's National Provider Identifier (NPI) is 1306306865, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Wynn's specialty?
- Margaret Wynn is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Wynn located?
- Margaret Wynn's practice location on file with NPPES is 15740 South Outer Road, Chesterfield, MO 63017.
- What is Margaret Wynn's phone number?
- The practice phone number listed in the NPPES registry for Margaret Wynn is (636) 237-4200.
- Does Margaret Wynn accept Medicare?
- Margaret Wynn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Wynn's NPI active?
- Yes — Margaret Wynn's NPI (1306306865) 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.