Michael J. Cox, MD
Critical Care Medicine (Internal Medicine) Physician · Saint Louis, MO
Michael J. Cox, MD is a critical care medicine (internal medicine) physician with a practice address in Saint Louis, Missouri, and NPI 1154334860, issued on Aug 14, 2006. Check the license (Missouri R8J98, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Michael J. Cox
- Credential
- MD
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- R8J98 MO
Self-reported in NPPES; status is on the state search - Practice location
- 621 S New Ballas RD, Saint Louis, MO 63141
- Phone
- (314) 251-6486
- Enumerated
- Aug 14, 2006
- Record last updated
- Aug 5, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (314) 251-6486
- Medicaid ID
- 206914202 MO
- Medicare enrollment
- Enrolled (PECOS I20130606000699); accepts Medicare assignment
- Medical or professional school
- Southern Illinois University School Of Medicine, 1988
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 178 in Missouri → Look up another NPI →
Also registered at 621 S New Ballas RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Tara Albert, CPNPPediatric Nurse Practitioner1124294764
- Muhammad Ali, M.D.Geriatric Medicine (Internal Medicine) Physician1790986024
- Henry Altepeter, M.D.Specialist1992792295
Verify Michael J. Cox 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 R8J98Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Mercy Clinic Fort Smith CommunitiesFort Smith, AR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael J. Cox among 178 critical care medicine (internal medicine) physician records in Missouri
Michael J. Cox, MD is one of 178 critical care medicine (internal medicine) physician records with a practice address in Missouri. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 63% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated1988 · median 2005 among the 144 with a school on file
- Record last updated2021 · 37% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine (Internal Medicine) Physician providers in Missouri
There are 178 critical care medicine (internal medicine) physician records in Missouri.
All 178 in Missouri → Every provider in Saint Louis → Critical Care Medicine (Internal Medicine) Physician nationwide →
The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes
- Ronald Haake, D.O.St Louis, MO 631411386739548
- Muhammad Ali Javed, M.D. FCCPSaint Louis, MO 631411275741340
- Isabelle Kopec, M.D.St Louis, MO 631411427021211
- Adekunle Obisesan, MDSaint Louis, MO 631411164604138
- Ashok Palagiri, M.D.Saint Louis, MO 631411790899151
- Michael Plisco, MD, FCCPSaint Louis, MO 631411861432049
- Daniel Rey, M.D.Saint Louis, MO 631411336288356
- Farid Sadaka, M.D.Saint Louis, MO 631411144337411
Common questions
What is Michael J. Cox, MD's NPI number?
Michael J. Cox, MD's National Provider Identifier (NPI) is 1154334860, issued on Aug 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael J. Cox, MD located?
The NPPES record lists a practice address at 621 S New Ballas RD, Saint Louis, MO, 63141. Phone: (314) 251-6486. Providers update this record themselves, so call before visiting.
How can I verify Michael J. Cox, MD's license?
NPPES lists Missouri license number R8J98, 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.