Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Maria Lena Walls, ANP

Individual provider Registered Nurse · NPI 1740517515

Maria Lena Walls, ANP is a Nurse Practitioner in Saint Louis, Missouri. Qualified in 2004, 22 years ago. Practices with Physician Groups Lc, a 524-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
22
Licensed in
MO
In the registry since
2009
Specialties on file
2
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Practice location Address checks out

3009 N Ballas Rd Ste 359C
Saint Louis, MO 63131-2324
Phone: (314) 996-4545
Fax: (314) 996-4546
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 2009034346 (MO)
Registered Nurse Taxonomy 163W00000X · Licence 2004018016 (MO)

Record details

NPI number1740517515
Entity typeIndividual (Type 1)
GenderFemale
Credentials ANP
Sole proprietorYes
NPI enumeratedNovember 15, 2009
Last updated in NPPESMarch 29, 2021
Certification dateMarch 29, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Physician Groups Lc — 524 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients155
Services billed 799 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $28,310 13 payments
Travel and Lodging $1,781 12 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $1,075 13 payments · a meal or drink at a meeting or visit, not a fee
Education $39 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Physician Groups Lc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 524 clinicians in the practice; 12 are shown here.

Other providers in Saint Louis