Dr William Randolph Mook, MD - Medicare Orthopedic Surgery in Reston, VA

Dr William Randolph Mook, MD is a medicare enrolled "Orthopaedic Surgery" physician in Reston, Virginia. He went to University Of Virginia School Of Medicine and graduated in 2009 and has 15 years of diverse experience with area of expertise as Orthopedic Surgery. He is a member of the group practice Orthovirginia Inc and his current practice location is 1850 Town Center Pkwy, Ste 400, Reston, Virginia. You can reach out to his office (for appointments etc.) via phone at (703) 810-5202.

Dr William Randolph Mook is licensed to practice in Virginia (license number 0101258773) 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 1528201134.

Contact Information

Dr William Randolph Mook, MD
1850 Town Center Pkwy, Ste 400,
Reston, VA 20190-3219
(703) 810-5202
(703) 810-5420

Map and Direction




Physician's Profile

Full NameDr William Randolph Mook
GenderMale
SpecialityOrthopedic Surgery
Experience15 Years
Location1850 Town Center Pkwy, Reston, 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 William Randolph Mook attended and graduated from University Of Virginia School Of Medicine in 2009
  NPI Data:
  • NPI Number: 1528201134
  • Provider Enumeration Date: 04/13/2009
  • Last Update Date: 10/28/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 5193030625
  • Enrollment ID: I20150813009462

Medical Identifiers

Medical identifiers for Dr William Randolph Mook such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1528201134NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207XX0005XOrthopaedic Surgery - Sports Medicine 53419 (Colorado)Secondary
207X00000XOrthopaedic Surgery 0101258773 (Virginia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Reston Hospital CenterReston, VAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Orthovirginia Inc0547157224491

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 William Randolph Mook allows following entities to bill medicare on his behalf.
Entity NameOrthovirginia Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1588066740
PECOS PAC ID: 0547157224
Enrollment ID: O20150102000273
Entity NameSynergy Surgicalists Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114334422
PECOS PAC ID: 0244553105
Enrollment ID: O20160912000088

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 William Randolph Mook 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 William Randolph Mook, MD
Po Box 75420,
Baltimore, MD 21275-5420

Ph: (703) 383-6469
Dr William Randolph Mook, MD
1850 Town Center Pkwy, Ste 400,
Reston, VA 20190-3219

Ph: (703) 810-5202

Reviews and Comments


Orthopaedic Surgery Doctors in Reston, VA

Vignesh Alamanda, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1850 Town Center Pkwy Ste 400, Reston, VA 20190
Phone: 703-810-5202    
Jeffrey Howard Berg, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1860 Town Center Dr, Suite 300, Reston, VA 20190
Phone: 703-435-6604    Fax: 703-787-6575
Dr. James Stuart Melvin Iii, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1850 Town Center Pkwy, Ste 400, Reston, VA 20190
Phone: 703-810-5202    Fax: 703-810-5420
Behrang T Mazahery, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1850 Town Center Pkwy, Suite 400, Reston, VA 20190
Phone: 703-810-5202    Fax: 703-810-5420
Dr. Michael W Hasz, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1860 Town Center Dr Ste 180, Reston, VA 20190
Phone: 703-936-9474    Fax: 703-398-1511
Mark C Hartley, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1850 Town Center Pkwy, Suite 400, Reston, VA 20190
Phone: 703-810-5202    Fax: 703-787-9664
Korey Yngstrom,
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1850 Town Center Pkwy Ste 400, Reston, VA 20190
Phone: 703-810-5202    

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.