John Martin Leclaire, MD
Neurology Physician · Saint Louis, MO
John Martin Leclaire, MD is a neurology physician with a practice address in Saint Louis, Missouri, and NPI 1174104970, issued on Apr 14, 2021. Check the license (Missouri 2025013232, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- John Martin Leclaire
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- 2025013232 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
- Phone
- (615) 936-0060
- Enumerated
- Apr 14, 2021
- Record last updated
- May 30, 2025
- Fax
- (615) 936-0223
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 484 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 John Martin Leclaire 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 2025013232Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average neurology physician in 2024
95 Medicare Part D claims for 29 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium13 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.
John Martin Leclaire among 484 neurology physician records in Missouri
John Martin Leclaire, MD is one of 484 neurology physician 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 2021, is newer than 80% of them.
- NPI issued2021 · 80% of these records are older, 15% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2025 · 36% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Missouri
There are 484 neurology physician records in Missouri.
All 484 in Missouri → Every provider in Saint Louis → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Muhammad Al-Lozi, MDSaint Louis, MO 631101689690992
- Beau Ances, MDSaint Louis, MO 631101972569085
- Giovanni D'Avossa, MDSaint Louis, MO 631101871519181
- Marc Diamond, MDSaint Louis, MO 631101255368288
- Paul Kotzbauer, MDSaint Louis, MO 631101568488872
- Glenn Lopate, MDSaint Louis, MO 631101790701019
- Soe Mar, MDSaint Louis, MO 631101659397966
- Timothy Miller, MDSaint Louis, MO 631101255356671
Common questions
What is John Martin Leclaire, MD's NPI number?
John Martin Leclaire, MD's National Provider Identifier (NPI) is 1174104970, issued on Apr 14, 2021. An NPI identifies a provider in billing; it is not a license.
Where is John Martin Leclaire, MD located?
The NPPES record lists a practice address at 1 Barnes Jewish Hospital Plz, Saint Louis, MO, 63110. Phone: (615) 936-0060. Providers update this record themselves, so call before visiting.
How can I verify John Martin Leclaire, MD's license?
NPPES lists Missouri license number 2025013232, 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.
How much does John Martin Leclaire, MD prescribe under Medicare Part D?
In 2024, John Martin Leclaire, MD had 95 Medicare Part D claims for 29 beneficiaries; the average among neurology physician prescribers was 1,370. 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.