Stephanie Nellesen, FNP
Family Nurse Practitioner · Saint Louis, MO
Stephanie Nellesen, FNP is a family nurse practitioner with a practice address in Saint Louis, Missouri, and NPI 1003362021, issued on Aug 30, 2016. Check the license (Missouri 2016022548, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stephanie Nellesen
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 2016022548 MO
Self-reported in NPPES; status is on the state search - Practice location
- 621 S New Ballas RD Ste 189A, Saint Louis, MO 63141
- Phone
- (314) 251-6335
- Enumerated
- Aug 30, 2016
- Record last updated
- Nov 16, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (314) 251-5864
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 5,226 in Missouri → Look up another NPI →
Also registered at 621 S New Ballas RD Ste 189A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristen Knight, DNP, FNP-CFamily Nurse Practitioner1487389045
- Keya Kuhn, D.O.Internal Medicine Physician1396908513
- Madison Mik, PA-CPhysician Assistant1700547528
Verify Stephanie Nellesen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2016022548Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% fewer Medicare Part D claims than the average family nurse practitioner in 2024
613 Medicare Part D claims for 275 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Losartan Potassium30 claims
- Lisinopril26 claims
- Metoprolol Succinate23 claims
- Furosemide21 claims
- Metformin Hcl Er19 claims
- Lantus Solostar18 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.
Stephanie Nellesen among 5,226 family nurse practitioner records in Missouri
Stephanie Nellesen, FNP is one of 5,226 family nurse practitioner records with a practice address in Missouri. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 40% of them.
- NPI issued2016 · 40% of these records are older, 54% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2018 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
714 family nurse practitioner records list a practice address in Saint Louis
They are 714 of the 27,605 NPPES records with a practice address in Saint Louis, and 5,226 family nurse practitioner records in Missouri.
All 5,226 in Missouri → Every provider in Saint Louis → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Sara Beck, FNPSaint Louis, MO 631411114257607
- Lisa Burgard, F.N.P.Saint Louis, MO 631411790723120
- Brenda Bush, NP-CSaint Louis, MO 631411316192610
- Paula Haugen, NP-CSt Louis, MO 631411154654416
- Lisa Kinsey, FNPSaint Louis, MO 631411760673404
- Jeanette Montgomery, C.N.P.Saint Louis, MO 631411811972060
- Sarah OsdieckSaint Louis, MO 631411316274905
- Rachel Phillips Barnidge, NURSE PRACTRIONERSaint Louis, MO 631411285785121
Common questions
What is Stephanie Nellesen, FNP's NPI number?
Stephanie Nellesen, FNP's National Provider Identifier (NPI) is 1003362021, issued on Aug 30, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Stephanie Nellesen, FNP located?
The NPPES record lists a practice address at 621 S New Ballas RD Ste 189A, Saint Louis, MO, 63141. Phone: (314) 251-6335. Providers update this record themselves, so call before visiting.
How can I verify Stephanie Nellesen, FNP's license?
NPPES lists Missouri license number 2016022548, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Stephanie Nellesen, FNP prescribe under Medicare Part D?
In 2024, Stephanie Nellesen, FNP had 613 Medicare Part D claims for 275 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.