Margaret Wallace, FNP
NPI 1689691115 · Family Nurse Practitioner · Creve Coeur, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Wallace, FNP is a Family Nurse Practitioner provider in Creve Coeur, MO (NPI 1689691115).
Provider details
- NPI number
- 1689691115
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 073145 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
653 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Removal of Impacted Ear Wax69210 | 424 | $39 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 131 | $73 |
| Exam of Ear Using a Microscope92504 | 59 | $23 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 27 | $105 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 12 | $91 |
Typical Medicare-allowed amounts for these services range $23–$105 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluticasone Propionate | 94 | 34 |
| Azelastine Hcl | 75 | 29 |
| Montelukast Sodium | 64 | 14 |
| Fluocinolone Acetonide Oil | 45 | 35 |
| Ofloxacin | 30 | 22 |
| Ipratropium Bromide | 26 | — |
| Methylprednisolone | 21 | 17 |
| Triamcinolone Acetonide | 19 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-17
- Last updated
- 2025-11-17
Frequently asked questions
- What is Margaret Wallace's NPI number?
- Margaret Wallace's National Provider Identifier (NPI) is 1689691115, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Wallace's specialty?
- Margaret Wallace is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Margaret Wallace located?
- Margaret Wallace's practice location on file with NPPES is 1044 N Mason Rd, Creve Coeur, MO 63141-6431.
- What is Margaret Wallace's phone number?
- The practice phone number listed in the NPPES registry for Margaret Wallace is (314) 362-7509.
- Does Margaret Wallace accept Medicare?
- Margaret Wallace is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Wallace's NPI active?
- Yes — Margaret Wallace's NPI (1689691115) is active in the NPPES registry as of the last update on 2025-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.