Zachary T Hollis, MD - Medicare Cardiac Electrophysiology in Fairfax, VA

  1. Home
  2. Internal Medicine
  3. VA
  4. Fairfax
Zachary T Hollis, MD is a medicare enrolled "Internal Medicine - Clinical Cardiac Electrophysiology" physician in Fairfax, Virginia. He went to University Of Illinois College Of Med (chi/peor/rock/chm-urb) and graduated in 2010 and has 14 years of diverse experience with area of expertise as Cardiac Electrophysiology. He is a member of the group practice Inova Health Care Services, Inova Health Care Services and his current practice location is 8081 Innovation Park Dr Ste 602, Fairfax, Virginia. You can reach out to his office (for appointments etc.) via phone at (571) 472-3270.

Zachary T Hollis is licensed to practice in Virginia (license number 0101265236) 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 1104142744.

Contact Information

Zachary T Hollis, MD
8081 Innovation Park Dr Ste 602,
Fairfax, VA 22031-4867
(571) 472-3270
(571) 472-3271

Map and Direction




Physician's Profile

Full NameZachary T Hollis
GenderMale
SpecialityCardiac Electrophysiology
Experience14 Years
Location8081 Innovation Park Dr Ste 602, Fairfax, 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:
  • Zachary T Hollis attended and graduated from University Of Illinois College Of Med (chi/peor/rock/chm-urb) in 2010
  NPI Data:
  • NPI Number: 1104142744
  • Provider Enumeration Date: 04/07/2010
  • Last Update Date: 11/23/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 1951535848
  • Enrollment ID: I20181001000904

Medical Identifiers

Medical identifiers for Zachary T Hollis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1104142744NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 0101265236 (Virginia)Secondary
207RC0000XInternal Medicine - Cardiovascular Disease 0101265236 (Virginia)Secondary
207RC0001XInternal Medicine - Clinical Cardiac Electrophysiology 0101265236 (Virginia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Inova Fairfax HospitalFalls church, VAHospital
Inova Loudoun HospitalLeesburg, VAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Inova Health Care Services24663510931778
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. Zachary T Hollis allows following entities to bill medicare on his behalf.
Entity NameWinchester Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679711261
PECOS PAC ID: 0244134021
Enrollment ID: O20031124000061
Entity NameShenandoah Memorial Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952417735
PECOS PAC ID: 2466360375
Enrollment ID: O20040115001156
Entity NamePage Memorial Hospital Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326040684
PECOS PAC ID: 8426951203
Enrollment ID: O20040129000420
Entity NameWarren Memorial Hospital, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1164442281
PECOS PAC ID: 2365330347
Enrollment ID: O20040310000516
Entity NameInova Health Care Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1952320061
PECOS PAC ID: 2466351093
Enrollment ID: O20080806000696
Entity NameValley Physician Enterprise Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538316203
PECOS PAC ID: 9931268091
Enrollment ID: O20081104000278

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. Zachary T Hollis 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
Zachary T Hollis, MD
Po Box 37174,
Baltimore, MD 21297-3174

Ph: (571) 423-5699		Zachary T Hollis, MD
8081 Innovation Park Dr Ste 602,
Fairfax, VA 22031-4867

Ph: (571) 472-3270

Reviews and Comments


Internal Medicine Doctors in Fairfax, VA

Shivangi Vachhani, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 3700 Joseph Siewick Dr Ste 408a, Fairfax, VA 22033
Phone: 877-511-4625    Fax: 703-204-9006
Dr. Raymund S Cuevo, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8081 Innovation Park Dr, Fairfax, VA 22031
Phone: 571-472-4724    Fax: 571-472-0241
Dr. Michael Maitland, M.D., PH.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 8081 Innovation Park Dr, Fairfax, VA 22031
Phone: 571-472-4724    Fax: 571-472-1601
Aswani Kumar Suthrave, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3600 Joseph Siewick Dr, Fairfax, VA 22033
Phone: 703-391-3600    
Nader H Balba, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3028 Javier Rd Ste 500, Fairfax, VA 22031
Phone: 703-698-8960    Fax: 571-494-5794
Rona Harthill Earle,
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3020 Hamaker Ct Ste B102, Fairfax, VA 22031
Phone: 703-573-4072    Fax: 703-572-2153
Renee Elizabeth Funches, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 12255 Fair Lakes Pkwy, Kaiser Permanente Fair Oaks Medical Center, Fairfax, VA 22033
Phone: 703-934-5700    

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.