Stephen J Antonik, MD - Medicare Gastroenterology in Leesburg, VA

Stephen J Antonik, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Leesburg, Virginia. He went to Loyola University Of Chicago, Stritch School Of Medicine and graduated in 2002 and has 22 years of diverse experience with area of expertise as Gastroenterology. His current practice location is 19500 Sandridge Way Ste 470, Leesburg, Virginia. You can reach out to his office (for appointments etc.) via phone at (703) 771-9001.

Stephen J Antonik is licensed to practice in Virginia (license number 0101245281) 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 1770567257.

Contact Information

Stephen J Antonik, MD
19500 Sandridge Way Ste 470,
Leesburg, VA 20176-3694
(703) 771-9001
(703) 771-9076



Physician's Profile

Full NameStephen J Antonik
GenderMale
SpecialityGastroenterology
Experience22 Years
Location19500 Sandridge Way Ste 470, Leesburg, 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:
  • Stephen J Antonik attended and graduated from Loyola University Of Chicago, Stritch School Of Medicine in 2002
  NPI Data:
  • NPI Number: 1770567257
  • Provider Enumeration Date: 11/30/2005
  • Last Update Date: 10/06/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 4486670288
  • Enrollment ID: I20090729000494

Medical Identifiers

Medical identifiers for Stephen J Antonik such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1770567257NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 0101245281 (Virginia)Primary
207R00000XInternal Medicine 036113018 (Illinois)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Inova Loudoun HospitalLeesburg, VAHospital

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. Stephen J Antonik allows following entities to bill medicare on his behalf.
Entity NameGastroenterology Associates Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497853303
PECOS PAC ID: 3779514971
Enrollment ID: O20050827000053

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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. Stephen J Antonik 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
Stephen J Antonik, MD
19500 Sandridge Way Ste 470,
Leesburg, VA 20176-3694

Ph: (703) 771-9001
Stephen J Antonik, MD
19500 Sandridge Way Ste 470,
Leesburg, VA 20176-3694

Ph: (703) 771-9001

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Internal Medicine Doctors in Leesburg, VA

Munira Dabhiya, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 44045 Riverside Pkwy, Leesburg, VA 20176
Phone: 703-858-6000    Fax: 703-858-6900
Mr. Warren Joseph Marion, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 38483 Forest Mills Rd, Leesburg, VA 20175
Phone: 540-338-3447    Fax: 540-338-3447
Dr. Sandhya Chanda, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 19450 Deerfield Ave, Suite 400, Leesburg, VA 20176
Phone: 571-223-5723    Fax: 571-209-1848
Ann I Ma, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 224d Cornwall St Nw, Suite 207, Leesburg, VA 20176
Phone: 703-771-9001    Fax: 703-771-9076
Dr. Jae In Lee, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 19450 Deerfield Ave Ste 100, Leesburg, VA 20176
Phone: 571-350-3668    Fax: 703-729-2689
Yaser Cheema, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 19450 Deerfield Avenue, Suite 325, Leesburg, VA 20176
Phone: 571-252-8119    Fax: 800-735-1643
Shruti Rakesh Tiwari, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 44035 Riverside Pkwy Ste 300, Leesburg, VA 20176
Phone: 703-208-3155    Fax: 703-724-7503

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