Dr Ammar Nasir, MD - Medicare Cardiovascular Disease (cardiology) in Lake St Louis, MO

Dr Ammar Nasir, MD is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Lake St Louis, Missouri. He graduated from medical school in 2005 and has 19 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice Ssm Medical Group Inc and his current practice location is 300 Medical Plz Ste 150, Lake St Louis, Missouri. You can reach out to his office (for appointments etc.) via phone at (636) 625-2662.

Dr Ammar Nasir is licensed to practice in Missouri (license number 2012009724) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1427212299.

Contact Information

Dr Ammar Nasir, MD
300 Medical Plz Ste 150,
Lake St Louis, MO 63367-1483
(636) 625-2662
Not Available

Map and Direction




Physician's Profile

Full NameDr Ammar Nasir
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience19 Years
Location300 Medical Plz Ste 150, Lake St Louis, Missouri
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Ammar Nasir graduated from medical school in 2005
  NPI Data:
  • NPI Number: 1427212299
  • Provider Enumeration Date: 07/10/2008
  • Last Update Date: 11/01/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4385806272
  • Enrollment ID: I20120511000078

Medical Identifiers

Medical identifiers for Dr Ammar Nasir such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1427212299NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 2012009724 (Missouri)Secondary
207RI0011XInternal Medicine - Interventional Cardiology 2012009724 (Missouri)Secondary
207RC0000XInternal Medicine - Cardiovascular Disease 2012009724 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ssm St Joseph Hospital WestLake saint louis, MOHospital
Ssm St Joseph Health CenterSaint charles, MOHospital
Ssm Depaul Health CenterBridgeton, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ssm Medical Group Inc6608776299491

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 Ammar Nasir allows following entities to bill medicare on his behalf.
Entity NameSsm Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700966207
PECOS PAC ID: 6608776299
Enrollment ID: O20040729001034
Entity NameChristian Hospital Physician Billing Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689828501
PECOS PAC ID: 4284796913
Enrollment ID: O20081215000305

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 Ammar Nasir 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 Ammar Nasir, MD
1402 S Grand Blvd, 14th Floor Fdt,
Saint Louis, MO 63104-1004

Ph: (314) 577-8762
Dr Ammar Nasir, MD
300 Medical Plz Ste 150,
Lake St Louis, MO 63367-1483

Ph: (636) 625-2662

Reviews and Comments


Internal Medicine Doctors in Lake St Louis, MO

John David Wilkes, MD
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 400 Medical Plz, Suite 100, Lake St Louis, MO 63367
Phone: 636-639-8600    Fax: 636-639-8676
Michael J Zerega, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 200 Brevco Plz, Suite 208, Lake St Louis, MO 63367
Phone: 636-561-9020    Fax: 636-561-6208
Dr. Piotr T Dyk, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 2 Harbor Bend Ct Ste 227, Lake St Louis, MO 63367
Phone: 636-443-2440    Fax: 636-443-2486
Melissa Amy Grizzle, FNP-BC
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 107 Brevco Plz, Lake St Louis, MO 63367
Phone: 636-561-8100    Fax: 636-561-3396
Priyanka Tiwari, MD
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 200 Brevco Plz Ste 208, Lake St Louis, MO 63367
Phone: 636-561-9020    
Dr. Paul Barto Vatterott, M.D.
Cardiovascular Disease
Medicare: Medicare Enrolled
Practice Location: 107 Brevco Plz, Lake St Louis, MO 63367
Phone: 636-561-8100    Fax: 636-561-3396
Umesh C. Inampudi, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 100 Medical Plz, Lake St Louis, MO 63367
Phone: 314-317-0600    Fax: 314-317-0606

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.