Mallory Williams, MD - Medicare General Surgery in Washington, DC

Mallory Williams, MD is a medicare enrolled "Surgery" physician in Washington, District Of Columbia. He went to University Of Maryland School Of Medicine and graduated in 1999 and has 25 years of diverse experience with area of expertise as General Surgery. He is a member of the group practice Howard University and his current practice location is 2041 Georgia Ave Nw Ste 4000, Washington, District Of Columbia. You can reach out to his office (for appointments etc.) via phone at (202) 865-3785.

Mallory Williams is licensed to practice in District Of Columbia (license number MD041969) 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 1669488003.

Contact Information

Mallory Williams, MD
2041 Georgia Ave Nw Ste 4000,
Washington, DC 20060-4228
(202) 865-3785
(202) 865-3136

Map and Direction




Physician's Profile

Full NameMallory Williams
GenderMale
SpecialityGeneral Surgery
Experience25 Years
Location2041 Georgia Ave Nw Ste 4000, Washington, District Of Columbia
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:
  • Mallory Williams attended and graduated from University Of Maryland School Of Medicine in 1999
  NPI Data:
  • NPI Number: 1669488003
  • Provider Enumeration Date: 07/31/2006
  • Last Update Date: 04/01/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 4486729472
  • Enrollment ID: I20160426001627

Medical Identifiers

Medical identifiers for Mallory Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1669488003NPI-NPPES
1184071MedicaidLA
086515600MedicaidDC

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208600000XSurgery 227496 (Massachusetts)Secondary
208600000XSurgery 35.095349 (Ohio)Secondary
208600000XSurgery MD041969 (District Of Columbia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Howard University HospitalWashington, DCHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Howard University0941109565139

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. Mallory Williams allows following entities to bill medicare on his behalf.
Entity NameHoward University
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033163597
PECOS PAC ID: 0941109565
Enrollment ID: O20040102000561

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. Mallory Williams 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
Mallory Williams, MD
2041 Georgia Ave Nw,
Washington, DC 20060-0001

Ph: (202) 865-6679
Mallory Williams, MD
2041 Georgia Ave Nw Ste 4000,
Washington, DC 20060-4228

Ph: (202) 865-3785

Reviews and Comments


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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.