Mary Malen, N.P.
NPI 1386784676 · Adult Health Nurse Practitioner · Ballwin, MO
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Malen, N.P. is a Adult Health Nurse Practitioner provider in Ballwin, MO (NPI 1386784676).
Provider details
- NPI number
- 1386784676
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 2002016341 (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
19 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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Clozapine | 22 |
| Potassium Chloride | 18 |
| Amlodipine Besylate | 16 |
| Fludrocortisone Acetate | 12 |
| Naltrexone Hcl | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-02-07
- Last updated
- 2020-02-17
- Certified
- 2020-02-17
Frequently asked questions
- What is Mary Malen's NPI number?
- Mary Malen's National Provider Identifier (NPI) is 1386784676, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Malen's specialty?
- Mary Malen is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Malen located?
- Mary Malen's practice location on file with NPPES is 1227 De Noailles Dr, Ballwin, MO 63011-3605.
- What is Mary Malen's phone number?
- The practice phone number listed in the NPPES registry for Mary Malen is (314) 607-6897.
- Does Mary Malen accept Medicare?
- Mary Malen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Malen's NPI active?
- Yes — Mary Malen's NPI (1386784676) is active in the NPPES registry as of the last update on 2020-02-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.