NPPES file of Aug 9, 2026

Haley Nicole Schlattmann, ACNP

Acute Care Nurse Practitioner · Saint Louis, MO

Haley Nicole Schlattmann, ACNP is an acute care nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1194487439, issued on Oct 13, 2021. Check the license (Missouri 2021041450, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1194487439
Name
Haley Nicole Schlattmann
Credential
ACNP
Primary taxonomy
Acute Care Nurse Practitioner 363LA2100X
License number
2021041450 MO
Self-reported in NPPES; status is on the state search
Practice location
1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
Phone
(314) 362-9123
Enumerated
Oct 13, 2021
Record last updated
Apr 17, 2025
Fax
(314) 362-0478
Medicaid ID
420103435 MO
Medicare enrollment
Enrolled (PECOS I20211119000382); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1 Barnes Jewish Hospital Plz

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Fizza Abbas, MDInternal Medicine Physician1588079230
  2. Catey Abbott, DOInternal Medicine Physician1699355347
  3. Ramzi Abboud, MDMedical Oncology Physician1649684200
  4. Amy Abdalla, MDRadiation Oncology Physician1932959954
  5. Heba Abdelal, MDAnatomic Pathology & Clinical Pathology Physician1033633383
  6. Ali Abdelhay, MDHospitalist Physician1619540606

Verify Haley Nicole Schlattmann in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license 2021041450
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Missouri license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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70% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024

176 Medicare Part D claims for 131 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D.

  1. Haley Schlattmann176
  2. Specialty average594

Most prescribed

  1. Prednisone22 claims
  2. Sulfamethoxazole-Trimethoprim19 claims
  3. Cephalexin17 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 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.

  1. Qualityout of 100 · 30% of the final score71.5
  2. Costout of 100 · 30%59.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Washington UniversitySaint Louis, MO
  2. Washington University Community Specialists, LLCSaint Louis, MO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Haley Nicole Schlattmann among 441 acute care nurse practitioner records in Missouri

Haley Nicole Schlattmann, ACNP is one of 441 acute care nurse practitioner records with a practice address in Missouri. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 58% of them.

  • NPI issued2021 · 58% of these records are older, 33% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2021 · median 2019 among the 324 with a school on file
  • Record last updated2025 · 34% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Acute Care Nurse Practitioner providers in Missouri

There are 441 acute care nurse practitioner records in Missouri.

The 8 acute care nurse practitioner records with the nearest ZIP codes

  1. Michelle Adorjan, ACNPSaint Louis, MO 631101982729950
  2. Mary Beyatte, ACNPSaint Louis, MO 631101194742601
  3. Kelly Counts, ACNPSaint Louis, MO 631101750340279
  4. Lisa Daley, APRN, BCSaint Louis, MO 631101659450898
  5. Sherryl Dilallo, AGNPSaint Louis, MO 631101619993839
  6. Diane Dito, ANPSaint Louis, MO 631101720004039
  7. Theresa Frazier, APRN,BC,ACNPSaint Louis, MO 631101316076540
  8. Anne French, ACNPSaint Louis, MO 631101164434619

Common questions

What is Haley Nicole Schlattmann, ACNP's NPI number?

Haley Nicole Schlattmann, ACNP's National Provider Identifier (NPI) is 1194487439, issued on Oct 13, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Haley Nicole Schlattmann, ACNP located?

The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (314) 362-9123. Providers update this record themselves, so call before visiting.

How can I verify Haley Nicole Schlattmann, ACNP's license?

NPPES lists Missouri license number 2021041450, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Haley Nicole Schlattmann, ACNP prescribe under Medicare Part D?

In 2024, Haley Nicole Schlattmann, ACNP had 176 Medicare Part D claims for 131 beneficiaries; the average among acute care nurse practitioner prescribers was 594. Part D covers Medicare prescriptions only.

What is Haley Nicole Schlattmann, ACNP's MIPS final score?

The 2023 MIPS final score is 79.3 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.