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.
- 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
- Record last updated
- Apr 7, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (314) 842-4372
- Medicare enrollment
- Enrolled (PECOS I20040312000137); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 1,720 in Missouri → Look up another NPI →
Also registered at 10012 Kennerly RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Clara Assi, FNP-BCFamily Nurse Practitioner1679945885
- Nizar Assi, MDCardiovascular Disease Physician1194772954
- Om Bahl, M.D.Cardiovascular Disease Physician1497751432
Verify Diane Stierwalt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
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; by number, the most common kind was food and beverage; the largest payer was Edwards Lifesciences Corporation. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
2 hospitals and group practices
- Mercy Clinic Cardiovascular And Thoracic Surgery LLCSaint Louis, MO
- Pinckneyville Community HospitalPinckneyville, IL · Critical Access Hospitals
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Diane Stierwalt among 1,720 nurse practitioner records in Missouri
Diane Stierwalt, CNP 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 97% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2003 · median 2017 among the 1,080 with a school on file
- Record last updated2016 · 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
- Ashley Austin, ANPSaint Louis, MO 631281962858159
- Maria Buenaventura, NPSaint Louis, MO 631281669905642
- Amanda Diercks, N.P.Saint Louis, MO 631281679946156
- Patricia Jentsch, FNPSaint Louis, MO 631281558423251
- Jessica Johnston, NP-CSaint Louis, MO 631281578944245
- Kathryn Klein, DNP, FNP-CSaint Louis, MO 631281982106571
- Robert Lorenz, RN,ANPSaint Louis, MO 631281295769693
- Nicole Nichols, ANPSaint Louis, MO 631281962836551
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 1,109. Part D covers Medicare prescriptions only.
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.