Dr Michael Sean Antonis, DO - Medicare Emergency Medicine in Ashburn, VA

Dr Michael Sean Antonis, DO is a medicare enrolled "Emergency Medicine - Sports Medicine" physician in Ashburn, Virginia. He went to Chicago College Of Osteopathy and graduated in 2003 and has 21 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Orthovirginia Inc, Orthovirginia Inc, Inova Health Care Services and his current practice location is 20041 Riverside Commons Plaza, Ashburn, Virginia. You can reach out to his office (for appointments etc.) via phone at (703) 466-0447.

Dr Michael Sean Antonis is licensed to practice in Virginia (license number 0102204828) 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 1760429476.

Contact Information

Dr Michael Sean Antonis, DO
20041 Riverside Commons Plaza,
Ashburn, VA 20147
(703) 466-0447
(703) 810-5313

Map and Direction




Physician's Profile

Full NameDr Michael Sean Antonis
GenderMale
SpecialityEmergency Medicine
Experience21 Years
Location20041 Riverside Commons Plaza, Ashburn, Virginia
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 Michael Sean Antonis attended and graduated from Chicago College Of Osteopathy in 2003
  NPI Data:
  • NPI Number: 1760429476
  • Provider Enumeration Date: 06/01/2006
  • Last Update Date: 04/13/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4789612094
  • Enrollment ID: I20060726000265

Medical Identifiers

Medical identifiers for Dr Michael Sean Antonis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1760429476NPI-NPPES
P00858308OtherDCRAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine DO034203 (District Of Columbia)Secondary
207PS0010XEmergency Medicine - Sports Medicine 0102204828 (Virginia)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Orthovirginia Inc0547157224491
Orthovirginia Inc0547157224491
Inova Health Care Services24663510931778

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 Michael Sean Antonis allows following entities to bill medicare on his behalf.
Entity NameEmergency Medicine Associates Pa Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134117393
PECOS PAC ID: 8022914522
Enrollment ID: O20070919000389
Entity NameWhc Physician Group Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700154226
PECOS PAC ID: 6103093513
Enrollment ID: O20120125000252
Entity NameMedstar Urgent Care Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871843409
PECOS PAC ID: 9335303155
Enrollment ID: O20130513000540
Entity NameOrthovirginia Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588066740
PECOS PAC ID: 0547157224
Enrollment ID: O20150102000273

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 Michael Sean Antonis 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 Michael Sean Antonis, DO
P. O. Box 715868,
Philadelphia, PA 19171-5868

Ph: (804) 215-3063
Dr Michael Sean Antonis, DO
20041 Riverside Commons Plaza,
Ashburn, VA 20147

Ph: (703) 466-0447

Reviews and Comments


Emergency Medicine Doctors in Ashburn, VA


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.