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

MS. Sarah Marie Halliday, ACNP

Individual provider Nurse Practitioner · NPI 1487113999

MS. Sarah Marie Halliday, ACNP is a Nurse Practitioner in Saint Louis, Missouri. Qualified in 2018, 8 years ago. Practices with Cep America-Illinois Hospitalists, LLP, a 196-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
8
Licensed in
MO
In the registry since
2019
What do these letters mean?
ACNP — Acute Care Nurse Practitioner
A nurse practitioner who treats acutely ill patients, usually in hospital.

See every abbreviation used in this directory →

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Practice location Address checks out

400 S Kingshighway Blvd
Saint Louis, MO 63110-1014
Phone: (314) 362-9123
Fax: (314) 747-3338
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nurse Practitioner (primary) Taxonomy 363L00000X · Licence 2018041079 (MO)

Record details

NPI number1487113999
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACNP
Sole proprietorNo
NPI enumeratedMarch 14, 2019
Last updated in NPPESMay 16, 2019

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Cep America-Illinois Hospitalists, Llp — 196 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 patients210
Services billed 382 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Cep America-Illinois Hospitalists, LLP

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 196 clinicians in the practice; 12 are shown here.

Other providers in Saint Louis