John G. Alexander, MD
Anesthesiology Physician · Saint Louis, MO
John G. Alexander, MD is an anesthesiology physician with a practice address in Saint Louis, Missouri, and NPI 1477541100, issued on Oct 6, 2005. Check the license (Missouri 2000148561, 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 G. Alexander
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 2000148561 MO
Self-reported in NPPES; status is on the state search - Practice location
- 6420 Clayton RD, Saint Louis, MO 63117
- Phone
- (314) 768-8442
- Enumerated
- Oct 6, 2005
- Record last updated
- Aug 2, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicaid ID
- 204982912 MO
- Medicare enrollment
- Enrolled (PECOS I20221006003362); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 1995
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,153 in Missouri → Look up another NPI →
Also registered at 6420 Clayton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sana Afzal, MDInternal Medicine Physician1083579213
- Munir Ahmad, M.D.Nuclear Medicine Physician1356381438
- Kahee Amedi, MDHospitalist Physician1215382189
- Larisa Anokhin, CRNACertified Registered Nurse Anesthetist1023047131
- Monika Aplyn, M.D.Internal Medicine Physician1336195247
- Shirley Ariwodo, MDInternal Medicine Physician1194460006
Verify John G. Alexander 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 2000148561Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 82.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Sanford Health OF Northern MinnesotaBemidji, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John G. Alexander among 1,153 anesthesiology physician records in Missouri
John G. Alexander, MD is one of 1,153 anesthesiology physician records with a practice address in Missouri. 70% 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, 88% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1995 · median 2007 among the 718 with a school on file
- Record last updated2016 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
490 anesthesiology physician records list a practice address in Saint Louis
They are 490 of the 27,605 NPPES records with a practice address in Saint Louis, and 1,153 anesthesiology physician records in Missouri.
All 1,153 in Missouri → Every provider in Saint Louis → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Jeffrey Bray, DOSt Louis, MO 631171245219088
- Stefan Eichhorn, MDSaint Louis, MO 631171053390971
- Michael Hartmann, MDSaint Louis, MO 631171871572743
- Vitaly Levin, MDSaint Louis, MO 631171770562654
- Robin Miller, DOSaint Louis, MO 631171881662641
- Maxwell Muench, DORichmond Heights, MO 631171043878945
- Kevin Oconnor, MDSt Louis, MO 631171417936246
- Rudraiah Raja-Sekhar, MDSaint Louis, MO 631171417936253
Common questions
What is John G. Alexander, MD's NPI number?
John G. Alexander, MD's National Provider Identifier (NPI) is 1477541100, issued on Oct 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John G. Alexander, MD located?
The NPPES record lists a practice address at 6420 Clayton RD, Saint Louis, MO, 63117. Phone: (314) 768-8442. Providers update this record themselves, so call before visiting.
How can I verify John G. Alexander, MD's license?
NPPES lists Missouri license number 2000148561, 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.
What is John G. Alexander, MD's MIPS final score?
The 2023 MIPS final score is 82.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.