Active NPI
Mary Elizabeth Malen, N.P.
- Adult Health Nurse Practitioner
- Ballwin, MO
National Provider Identifier
1386784676
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Adult Health Nurse Practitioner
- License
- 2002016341
- Practice address
- 1227 De Noailles Dr
Ballwin, MO 63011-3605 - Phone
- (877) 658-2244
- Fax
- (858) 724-6662
- NPI assigned
- Feb 7, 2007
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Adult Health Nurse Practitioner | 363LA2200X | 2002016341 | MO | Primary |
Addresses
Primary practice location
1227 De Noailles Dr
Ballwin, MO 63011-3605
Mailing address
13280 Evening Creek Dr S Ste 225
San Diego, CA 92128-4664
Phone (877) 658-2244
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MO, KY, TN, NC, TX, IL, FL, NY
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 8
Care Compare profile
Medicare Care Compare- Specialty
- Nurse Practitioner
- Education
- Other, 2006
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
Ballwin, MO 63011
Phone (877) 257-0637
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Nurse Practitioner
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 2002016341 | MO | MD | Adult Health Nurse Practitioner |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Sound Physicians of Illinois, LLC | Current | Accepting new patients | |
| Mdwatch Medical Corp. | Current | Accepting new patients | |
| Inpatient Consultants of Missouri Inc | Past | Accepting new patients | |
| Mdwatch Ca, PC | Past | Accepting new patients | |
| Cloud Health Medical Group, P.a. | Past | Accepting new patients |
Locations
13280 Evening Creek Dr S
Ste 225
San Diego, CA 92128
Phone (858) 752-9735
12303 De Paul Dr
Bridgeton, MO 63044
Phone (314) 344-6360
6420 Clayton Rd
Saint Louis, MO 63117
Phone (314) 768-8442
Interoperability endpoints
- mary.malen.1@25522.direct.athenahealth.com
Organizations & group practices 5
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Hospitalist Physician
- Bridgeton, MO
- NPI 1043598865
-
- Internal Medicine Physician
- Saint Louis, MO
- NPI 1194779579
-
- Internal Medicine Physician
- White Plains, NY
- NPI 1528744935
-
- General Practice Physician
- San Diego, CA
- NPI 1275145138
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1170806400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1782864000000",
"number": "1386784676",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "13280 EVENING CREEK DR S STE 225",
"city": "SAN DIEGO",
"state": "CA",
"postal_code": "921284664",
"telephone_number": "877-658-2244",
"fax_number": "858-724-6662"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1227 DE NOAILLES DR",
"city": "BALLWIN",
"state": "MO",
"postal_code": "630113605",
"telephone_number": "877-658-2244",
"fax_number": "858-724-6662"
}
],
"practiceLocations": [],
"basic": {
"last_name": "MALEN",
"first_name": "MARY",
"middle_name": "ELIZABETH",
"name_prefix": "Mrs.",
"credential": "N.P.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2007-02-07",
"last_updated": "2026-07-01",
"certification_date": "2026-07-01",
"status": "A"
},
"taxonomies": [
{
"code": "363LA2200X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Adult Health",
"state": "MO",
"license": "2002016341",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Ballwin, MO
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 1, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.