Dr Alison Williams, MD - Medicare Diagnostic Radiology in Annapolis, MD

Dr Alison Williams, MD is a medicare enrolled "Radiology - Diagnostic Radiology" physician in Annapolis, Maryland. She graduated from medical school in 1986 and has 38 years of diverse experience with area of expertise as Diagnostic Radiology. She is a member of the group practice Chesapeake Open Mri Llc, Chesapeake Open Mri Llc and her current practice location is 122 Defense Hwy, Chesapeake Medical Imaging, Annapolis, Maryland. You can reach out to her office (for appointments etc.) via phone at (410) 571-0350.

Dr Alison Williams is licensed to practice in Maryland (license number D45815) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1891705539.

Contact Information

Dr Alison Williams, MD
122 Defense Hwy, Chesapeake Medical Imaging,
Annapolis, MD 21401-7069
(410) 571-0350
(410) 571-9348

Map and Direction




Physician's Profile

Full NameDr Alison Williams
GenderFemale
SpecialityDiagnostic Radiology
Experience38 Years
Location122 Defense Hwy, Annapolis, Maryland
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Alison Williams graduated from medical school in 1986
  NPI Data:
  • NPI Number: 1891705539
  • Provider Enumeration Date: 08/08/2006
  • Last Update Date: 11/02/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 5698783389
  • Enrollment ID: I20060322000110

Medical Identifiers

Medical identifiers for Dr Alison Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1891705539NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0202XRadiology - Diagnostic Radiology D45815 (Maryland)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Chesapeake Open Mri Llc993117837319
Chesapeake Open Mri Llc993117837319

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 Alison Williams allows following entities to bill medicare on her behalf.
Entity NameChesapeake Open Mri Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1396076642
PECOS PAC ID: 9931178373
Enrollment ID: O20120716000091

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 Alison 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
Dr Alison Williams, MD
122 Defense Hwy, Chesapeake Medical Imaging,
Annapolis, MD 21401-7069

Ph: (410) 571-0350
Dr Alison Williams, MD
122 Defense Hwy, Chesapeake Medical Imaging,
Annapolis, MD 21401-7069

Ph: (410) 571-0350

Reviews and Comments


Radiology Doctors in Annapolis, MD

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Dr. Kerry J. Thompson, M.D.
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Practice Location: 2002 Medical Pkwy, Suite #235, Annapolis, MD 21401
Phone: 410-266-2770    Fax: 410-841-6251

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.