Registry data as of Aug 27, 2026

Diane Stierwalt, CNP

Nurse Practitioner · Saint Louis, MO

Diane Stierwalt, CNP is a nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1194722645, issued on Jun 30, 2005. Check the license with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1194722645
Name
Diane Stierwalt
Credential
CNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
041321448 IL
Self-reported in NPPES; status is on the state search
Practice location
10012 Kennerly RD, Saint Louis, MO 63128
Phone
(314) 880-6676
Enumerated
Jun 30, 2005
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 10012 Kennerly RD

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

  1. Yazan Abdalla, M.D.Internal Medicine Physician1033365358
  2. Youssef Abdulnabi, M.D.Cardiovascular Disease Physician1811958689
  3. Christopher Allen, M.D.Interventional Cardiology Physician1528271434
  4. Clara Assi, FNP-BCFamily Nurse Practitioner1679945885
  5. Nizar Assi, MDCardiovascular Disease Physician1194772954
  6. Om Bahl, M.D.Cardiovascular Disease Physician1497751432

Verify Diane Stierwalt in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this professionCheck 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.

98% fewer Medicare Part D claims than the average nurse practitioner in 2024

27 Medicare Part D claims for 17 beneficiaries, against an average of 1,144 among the 50,277 providers of this specialty who prescribed in Part D.

  1. Diane Stierwalt27
  2. Specialty average1,144

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.

Industry payments in 2024: $442.95

11 payments, mostly food and beverage; the largest payer was Edwards Lifesciences Corporation. The 36,168 providers of this specialty with any payment received $802.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Diane Stierwalt$442.95
  2. Specialty average$802.80

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

2 hospital and facility affiliations

  1. Mercy Clinic Cardiovascular And Thoracic Surgery LLCSaint Louis, MO
  2. Pinckneyville Community HospitalPinckneyville, IL · Critical Access Hospitals

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

406 nurse practitioner records list a Saint Louis practice address

They are 406 of the 27,605 NPPES records with a Saint Louis practice address, and 1,618 nurse practitioner records in Missouri.

Other nurse practitioner records in Missouri

  1. Caitlin Aaron, NP-CLees Summit, MO1649934340
  2. Sarah Abaricia, FNPSaint Peters, MO1447709365
  3. Hawo AbukarBlue Springs, MO1841135084
  4. Morgan Ackerman, NPChesterfield, MO1811625676
  5. Holly Ackermann, FNPDe Soto, MO1003303389
  6. Yolanda Acklin, NPFlorissant, MO1881790996
  7. Alina Adams, NPRichmond Heights, MO1003393513
  8. Dorothy Adams, NPHolden, MO1043274210
  9. Holly Adams, MSN, FNP-BCDoniphan, MO1841899614
  10. Lindsey Adams, NP-CFenton, MO1326611757

Common questions

What is Diane Stierwalt, CNP's NPI number?

Diane Stierwalt, CNP's National Provider Identifier (NPI) is 1194722645, issued on Jun 30, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Diane Stierwalt, CNP located?

The NPPES record lists a practice address at 10012 Kennerly RD, Saint Louis, MO, 63128. Phone: (314) 880-6676. Providers update this record themselves, so call before visiting.

How can I verify Diane Stierwalt, CNP's license?

Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Diane Stierwalt, CNP prescribe under Medicare Part D?

In 2024, Diane Stierwalt, CNP had 27 Medicare Part D claims for 17 beneficiaries; the average among nurse practitioner prescribers was 1,144. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.