Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Cassandra Marie Johnson, MSN, APRN, WHNP-BC

Individual provider Nurse Practitioner · NPI 1700358025

Cassandra Marie Johnson, MSN, APRN, WHNP-BC is a Nurse Practitioner in Saint Louis, Missouri. Qualified in 2017, 9 years ago. Practices with Physician Groups Lc, a 524-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
9
Licensed in
MO
In the registry since
2018
Specialties on file
2
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1110 Highlands Plaza Dr E Ste 280
Saint Louis, MO 63110-1351
Phone: (314) 286-2620
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 636 Hampshire St Ste 201, Quincy, IL 62301-3054 — (217) 224-6877

Specialties & licences

Women's Health Nurse Practitioner (primary) Taxonomy 363LW0102X · Licence 2018012101 (MO)
Nurse Practitioner Taxonomy 363L00000X · Licence 2018012101 (MO)

Record details

NPI number1700358025
Entity typeIndividual (Type 1)
GenderFemale
Credentials MSN , APRN , WHNP-BC
Sole proprietorNo
NPI enumeratedDecember 27, 2018
Last updated in NPPESMay 9, 2022
Certification dateMay 9, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Physician Groups Lc — 524 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients38
Services billed 66 a service is one billed item, such as a visit, a test or a procedure
Average patient age63

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.

Food and Beverage $274 15 payments · a meal or drink at a meeting or visit, 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.

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