Dr Ramya Chinnasamy, MD - Medicare Internal Medicine in Saint Louis, MO

Dr Ramya Chinnasamy, MD is a medicare enrolled "Hospitalist" physician in Saint Louis, Missouri. She graduated from medical school in 2006 and has 18 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Mercy Clinic Adult Hospitalists - St. Louis, Llc, Mercy Hospitals East Communities and her current practice location is 621 S New Ballas Rd Ste 112a, Saint Louis, Missouri. You can reach out to her office (for appointments etc.) via phone at (314) 251-6339.

Dr Ramya Chinnasamy is licensed to practice in Missouri (license number 2018008443) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1063708238.

Contact Information

Dr Ramya Chinnasamy, MD
621 S New Ballas Rd Ste 112a,
Saint Louis, MO 63141-8252
(314) 251-6339
(314) 251-4564

Map and Direction




Physician's Profile

Full NameDr Ramya Chinnasamy
GenderFemale
SpecialityInternal Medicine
Experience18 Years
Location621 S New Ballas Rd Ste 112a, Saint Louis, Missouri
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Ramya Chinnasamy graduated from medical school in 2006
  NPI Data:
  • NPI Number: 1063708238
  • Provider Enumeration Date: 06/25/2011
  • Last Update Date: 12/02/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 6709009053
  • Enrollment ID: I20180724003131

Medical Identifiers

Medical identifiers for Dr Ramya Chinnasamy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1063708238NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist 2018008443 (Missouri)Primary
208M00000XHospitalist 277043 (New York)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mercy Hospital St LouisSaint louis, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mercy Clinic Adult Hospitalists - St. Louis, Llc6002809944126
Mercy Hospitals East Communities1658276811111

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Ramya Chinnasamy allows following entities to bill medicare on her behalf.
Entity NameMercy Hospitals East Communities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851431738
PECOS PAC ID: 1658276811
Enrollment ID: O20031218000107
Entity NameMercy Clinic Adult Hospitalists - St. Louis, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841235108
PECOS PAC ID: 6002809944
Enrollment ID: O20040406001004
Entity NameMercy Clinic Adult Hospitalists - Washington, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891943429
PECOS PAC ID: 3577630540
Enrollment ID: O20080917000782
Entity NameSt Anthonys Physician Organization Hospitalist Services Lc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1407216336
PECOS PAC ID: 5092980656
Enrollment ID: O20111208000771
Entity NameMercy Clinic Adult Hospitalists Jefferson Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1083052492
PECOS PAC ID: 8628205598
Enrollment ID: O20131220001798
Entity NameMercy Hospital Lincoln
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1962808733
PECOS PAC ID: 5193040020
Enrollment ID: O20150623002541

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Ramya Chinnasamy is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Ramya Chinnasamy, MD
621 S New Ballas Rd Ste 112a,
Saint Louis, MO 63141-8252

Ph: (314) 251-6339
Dr Ramya Chinnasamy, MD
621 S New Ballas Rd Ste 112a,
Saint Louis, MO 63141-8252

Ph: (314) 251-6339

Reviews and Comments


Hospitalist Doctors in Saint Louis, MO

Dr. Robert Shi-heng Young, MD
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Phone: 314-362-1700    Fax: 314-362-9878
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Phone: 314-996-5900    
Dr. James Matthew Freer, MD
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Dr. Rachel Hannah Bardowell, MD
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Jabon L Ellis, D.O.
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Dr. Patrick Hodge White, MD
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Phone: 314-362-1700    Fax: 314-362-9878
Dr. Jeffrey B Friesen, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 1 Barnes Jewish Hospital Plz, Saint Louis, MO 63110
Phone: 314-362-1700    Fax: 314-362-9878

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.