Sarah Marie Halliday, ACNP
Nurse Practitioner · Saint Louis, MO
Sarah Marie Halliday, ACNP is a nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1487113999, issued on Mar 14, 2019. Check the license (Missouri 2018041079, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sarah Marie Halliday
- Credential
- ACNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 2018041079 MO
Self-reported in NPPES; status is on the state search - Practice location
- 400 S Kingshighway Blvd, Saint Louis, MO 63110
- Phone
- (314) 362-9123
- Enumerated
- Mar 14, 2019
- Record last updated
- May 16, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (314) 747-3338
- Medicare enrollment
- Enrolled (PECOS I20220217001169); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,720 in Missouri → Look up another NPI →
Also registered at 400 S Kingshighway Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sarah Marie Halliday in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2018041079Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 90.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Cep America-Illinois Hospitalists, LLPAlton, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sarah Marie Halliday among 1,720 nurse practitioner records in Missouri
Sarah Marie Halliday, ACNP is one of 1,720 nurse practitioner records with a practice address in Missouri. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 64% of them.
- NPI issued2019 · 64% of these records are older, 29% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2018 · median 2017 among the 1,080 with a school on file
- Record last updated2019 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
437 nurse practitioner records list a practice address in Saint Louis
They are 437 of the 27,605 NPPES records with a practice address in Saint Louis, and 1,720 nurse practitioner records in Missouri.
All 1,720 in Missouri → Every provider in Saint Louis → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Natalie Bryant, ACNPSaint Louis, MO 631101396744207
- Christine Debold, ANPSaint Louis, MO 631101154363513
- Debra Gase, FNPSaint Louis, MO 631101972529105
- Monica Hente, PNPSaint Louis, MO 631101013996313
- Patricia Knutsen, AHCNSSaint Louis, MO 631101184651184
- Frank Krajczar, ANPSaint Louis, MO 631101922002484
- Carol Massmann, PNPSaint Louis, MO 631101598782013
- Brenda Patterson, FNPSaint Louis, MO 631101497732986
Common questions
What is Sarah Marie Halliday, ACNP's NPI number?
Sarah Marie Halliday, ACNP's National Provider Identifier (NPI) is 1487113999, issued on Mar 14, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Sarah Marie Halliday, ACNP located?
The NPPES record lists a practice address at 400 S Kingshighway Blvd, Saint Louis, MO, 63110. Phone: (314) 362-9123. Providers update this record themselves, so call before visiting.
How can I verify Sarah Marie Halliday, ACNP's license?
NPPES lists Missouri license number 2018041079, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
What is Sarah Marie Halliday, ACNP's MIPS final score?
The 2023 MIPS final score is 90.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.