Madan M. Chilappa, M.D.
Critical Care Medicine (Internal Medicine) Physician · Saint Louis, MO
Madan M. Chilappa, M.D. is a critical care medicine (internal medicine) physician with a practice address in Saint Louis, Missouri, and NPI 1548232846, issued on Feb 2, 2006. Check the license (Missouri R6N36, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Madan M. Chilappa
- Credential
- M.D.
- Primary taxonomy
- Critical Care Medicine (Internal Medicine) Physician 207RC0200X
- License number
- R6N36 MO
Self-reported in NPPES; status is on the state search - Practice location
- 6420 Clayton RD, Saint Louis, MO 63117
- Phone
- (314) 843-1866
- Enumerated
- Feb 2, 2006
- Record last updated
- Feb 4, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicaid ID
- 207686916 MO
- Medicare enrollment
- Enrolled (PECOS I20100902000222); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine (internal medicine) physician records → All 178 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.
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Verify Madan M. Chilappa 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 R6N36Check 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
- Ssm Health Care GroupSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Madan M. Chilappa among 178 critical care medicine (internal medicine) physician records in Missouri
Madan M. Chilappa, M.D. 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
- Graduated1978 · median 2005 among the 144 with a school on file
- Record last updated2010 · 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
- Seba Hasan, M.D.Richmond Heights, MO 631171922532274
- Robert Wright, D.O.Saint Louis, MO 631171760454680
- Walter Mickey, D.O.Saint Louis, MO 631221306109384
- Rajesh Swaminathan, M.D.Kirkwood, MO 631221720051527
- Nnamdi Anunobi, MDSaint Louis, MO 631101548767775
- Rajat Dhar, MDSaint Louis, MO 631101649298191
- Michael Diringer, MDSaint Louis, MO 631101881625390
- Bria Giacomino, DOSaint Louis, MO 631101235491812
Common questions
What is Madan M. Chilappa, M.D.'s NPI number?
Madan M. Chilappa, M.D.'s National Provider Identifier (NPI) is 1548232846, issued on Feb 2, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Madan M. Chilappa, M.D. located?
The NPPES record lists a practice address at 6420 Clayton RD, Saint Louis, MO, 63117. Phone: (314) 843-1866. Providers update this record themselves, so call before visiting.
How can I verify Madan M. Chilappa, M.D.'s license?
NPPES lists Missouri license number R6N36, 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.