Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Shannon Lee Bierig, APRN-CNP, CNS

Individual provider Acute Care Clinical Nurse Specialist · NPI 1386947570

Shannon Lee Bierig, APRN-CNP, CNS is a Nurse Practitioner in Stillwater, Oklahoma. Qualified in 2012, 14 years ago. Practices with Williams Medical Group Practice, LLC, a 207-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
14
Licensed in
OK
In the registry since
2010
Specialties on file
2
What do these letters mean?
CNS — Clinical Nurse Specialist
An advanced practice nurse specialising in a patient population or setting.

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Practice location Address checks out

275 S Perkins Rd
Stillwater, OK 74074-3665
Phone: (405) 334-5272
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 59027 (OK)
Acute Care Clinical Nurse Specialist Taxonomy 364SA2100X · Licence 59027 (OK)

Record details

NPI number1386947570
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN-CNP , CNS
Sole proprietorNo
NPI enumeratedDecember 10, 2010
Last updated in NPPESFebruary 13, 2018

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2012 (14 years in practice)
Group practice Williams Medical Group Practice, Llc — 207 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations9 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 patients233
Services billed 606 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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.

Travel and Lodging $1,350 6 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $181 3 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 Williams Medical Group Practice, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 207 clinicians in the practice; 12 are shown here.