Leslie Stuart Gewin, MD
Nephrology Physician · Saint Louis, MO
Leslie Stuart Gewin, MD is a nephrology physician with a practice address in Saint Louis, Missouri, and NPI 1255488110, issued on Jan 4, 2007. Check the license (Missouri 2021049335, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Leslie Stuart Gewin
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 2021049335 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
- Phone
- (314) 362-7603
- Enumerated
- Jan 4, 2007
- Record last updated
- Feb 3, 2026
- Fax
- (314) 747-5213
- Medicaid ID
- 200110104 MO
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 285 in Missouri → Look up another NPI →
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.
- Fizza Abbas, MDInternal Medicine Physician1588079230
- Catey Abbott, DOInternal Medicine Physician1699355347
- Ramzi Abboud, MDMedical Oncology Physician1649684200
- Amy Abdalla, MDRadiation Oncology Physician1932959954
- Heba Abdelal, MDAnatomic Pathology & Clinical Pathology Physician1033633383
- Ali Abdelhay, MDHospitalist Physician1619540606
Verify Leslie Stuart Gewin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license 2021049335Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $10,988.69
6 payments; by number, the most common kind was travel and lodging; the largest payer was Novo Nordisk Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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.
Leslie Stuart Gewin among 285 nephrology physician records in Missouri
Leslie Stuart Gewin, MD is one of 285 nephrology physician records with a practice address in Missouri. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 39% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 74% of these records are
- Record last updated2026 · 38% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Missouri
There are 285 nephrology physician records in Missouri.
All 285 in Missouri → Every provider in Saint Louis → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Alejandro Alvarez, MDSaint Louis, MO 631101508846304
- Steven Cheng, MDSaint Louis, MO 631101154349611
- Daniel Coyne, MDSaint Louis, MO 631101427074749
- James Delmez, MDSaint Louis, MO 631101306862537
- Decha Enkvetchakul, MDSaint Louis, MO 631101205852514
- Andreas Herrlich, MDSaint Louis, MO 631101770567414
- Benjamin Humphreys, MDSaint Louis, MO 631101497798169
- Tingting Li, MDSaint Louis, MO 631101831154053
Common questions
What is Leslie Stuart Gewin, MD's NPI number?
Leslie Stuart Gewin, MD's National Provider Identifier (NPI) is 1255488110, issued on Jan 4, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Leslie Stuart Gewin, MD located?
The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (314) 362-7603. Providers update this record themselves, so call before visiting.
How can I verify Leslie Stuart Gewin, MD's license?
NPPES lists Missouri license number 2021049335, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.