Ramya Chinnasamy, MD
Hospitalist Physician · Saint Louis, MO
Ramya Chinnasamy, MD is a hospitalist physician with a practice address in Saint Louis, Missouri, and NPI 1063708238, issued on Jun 25, 2011. Check the license (Missouri 2018008443, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- Ramya Chinnasamy
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 2018008443 MO
277043 NY
Self-reported in NPPES; status is on the state search - Practice location
- 621 S New Ballas RD Ste 112A, Saint Louis, MO 63141
- Phone
- (314) 251-6339
- Enumerated
- Jun 25, 2011
- Record last updated
- Dec 2, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (314) 251-4564
- Medicare enrollment
- Enrolled (PECOS I20180724003131); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 930 in Missouri → Look up another NPI →
Also registered at 621 S New Ballas RD Ste 112A
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lindsey Bushmann, D.O.Internal Medicine Physician1417498601
- Jason Dausman, M.D.Hospitalist Physician1235187899
- Shady HawatmehInternal Medicine Physician1922498617
- Alexandra McDonaldAcute Care Nurse Practitioner1518501600
- Nathan Robertson, MDInternal Medicine Physician1124439252
- Ashlynn RoyPhysician Assistant1760345474
Verify Ramya Chinnasamy 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 2018008443Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average hospitalist physician in 2024
373 Medicare Part D claims for 161 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 38 claims were for opioids.
Most prescribed
- Prednisone20 claims
- Cefdinir19 claims
- Pantoprazole Sodium17 claims
- Hydrocodone-Acetaminophen13 claims
- Amoxicillin-Clavulanate Potass12 claims
- Doxycycline Hyclate11 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.
Bills Medicare through one group practice
- Mercy Clinic Adult Hospitalists - St. Louis, LLCSaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ramya Chinnasamy among 930 hospitalist physician records in Missouri
Ramya Chinnasamy, MD is one of 930 hospitalist physician records with a practice address in Missouri. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 33% of them.
- NPI issued2011 · 33% of these records are older, 63% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2006 · median 2014 among the 715 with a school on file
- Record last updated2019 · 25% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
419 hospitalist physician records list a practice address in Saint Louis
They are 419 of the 27,605 NPPES records with a practice address in Saint Louis, and 930 hospitalist physician records in Missouri.
All 930 in Missouri → Every provider in Saint Louis → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Yaseen Adam, MDSaint Louis, MO 631411932278587
- Kamran Baig, MDSaint Louis, MO 631411285711747
- Jason Dausman, M.D.Saint Louis, MO 631411235187899
- Rupinderjit Dhillon, MDCreve Coeur, MO 631411619167483
- Jordan Freie, MDSaint Louis, MO 631411366592925
- Sean Gravely, DOSaint Louis, MO 631411134295009
- Rachel Keech, DOSaint Louis, MO 631411558589572
- Vijaya Reddy, MDSaint Louis, MO 631411205800851
Common questions
What is Ramya Chinnasamy, MD's NPI number?
Ramya Chinnasamy, MD's National Provider Identifier (NPI) is 1063708238, issued on Jun 25, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Ramya Chinnasamy, MD located?
The NPPES record lists a practice address at 621 S New Ballas RD Ste 112A, Saint Louis, MO, 63141. Phone: (314) 251-6339. Providers update this record themselves, so call before visiting.
How can I verify Ramya Chinnasamy, MD's license?
NPPES lists Missouri license number 2018008443, 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 Ramya Chinnasamy, MD prescribe under Medicare Part D?
In 2024, Ramya Chinnasamy, MD had 373 Medicare Part D claims for 161 beneficiaries; the average among hospitalist physician prescribers was 521. 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.