Brent L Williamson, MD - Medicare Internal Medicine in York, PA

Brent L Williamson, MD is a medicare enrolled "Internal Medicine" physician in York, Pennsylvania. He graduated from medical school in 2013 and has 11 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Mary Washington Medical Group Hospitalist Services, Llc and his current practice location is 1001 S George St, York, Pennsylvania. You can reach out to his office (for appointments etc.) via phone at (717) 851-4751.

Brent L Williamson is licensed to practice in Pennsylvania (license number MD458584) 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 1457792392.

Contact Information

Brent L Williamson, MD
1001 S George St,
York, PA 17403-3676
(717) 851-4751
(717) 851-2826

Map and Direction




Physician's Profile

Full NameBrent L Williamson
GenderMale
SpecialityInternal Medicine
Experience11 Years
Location1001 S George St, York, Pennsylvania
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:
  • Brent L Williamson graduated from medical school in 2013
  NPI Data:
  • NPI Number: 1457792392
  • Provider Enumeration Date: 07/08/2013
  • Last Update Date: 07/20/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 9234350539
  • Enrollment ID: I20180731001237

Medical Identifiers

Medical identifiers for Brent L Williamson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1457792392NPI-NPPES
103144670001MedicaidPA
PO1801124OtherPARAILROAD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine MD458584 (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mary Washington HospitalFredericksburg, VAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Mary Washington Medical Group Hospitalist Services, Llc145662936975

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. Brent L Williamson allows following entities to bill medicare on his behalf.
Entity NameMary Washington Medical Group Hospitalist Services, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750826277
PECOS PAC ID: 1456629369
Enrollment ID: O20170619001149

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. Brent L Williamson 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
Brent L Williamson, MD
1001 S George St,
York, PA 17403-3676

Ph: (717) 851-4751
Brent L Williamson, MD
1001 S George St,
York, PA 17403-3676

Ph: (717) 851-4751

Reviews and Comments


Internal Medicine Doctors in York, PA

Robert A Fritz, DO
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1777 5th Ave, York, PA 17403
Phone: 717-843-8051    Fax: 717-846-0721
Dr. Aruna Chelliah, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 292 Saint Charles Way, York, PA 17402
Phone: 717-851-6231    Fax: 717-741-1719
Ali Abbas, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2690 Southfield Dr Ste A, York, PA 17403
Phone: 717-741-1414    Fax: 717-741-4774
Amna Chaudary, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1001 S George St, York, PA 17403
Phone: 717-741-8003    Fax: 717-741-8016
Dr. Iain Lewis Mackenzie, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 25 Monument Road Suite 250, Apple Hill Medical Center Digestive Disease Center, York, PA 17403
Phone: 717-741-9344    Fax: 717-741-9633
Johat Aponte, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1701 Innovation Dr, York, PA 17408
Phone: 717-843-8623    Fax: 717-815-2489
Manuel Jose Rovira Gonzalez,
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 1001 S George St, York, PA 17403
Phone: 717-741-8003    Fax: 717-741-8016

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.