Dr Michael B Williams, DO - Medicare Emergency Medicine in Olney, MD

Dr Michael B Williams, DO is a medicare enrolled "Emergency Medicine" physician in Olney, Maryland. He went to Nova Southeastern Univ College Of Dental Medicine and graduated in 2000 and has 24 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc and his current practice location is 18101 Prince Philip Dr, Montgomery General Hospital, Olney, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 774-8900.

Dr Michael B Williams is licensed to practice in Maryland (license number H0061316) 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 1871577783.

Contact Information

Dr Michael B Williams, DO
18101 Prince Philip Dr, Montgomery General Hospital,
Olney, MD 20832-1514
(301) 774-8900
(301) 570-8574

Map and Direction




Physician's Profile

Full NameDr Michael B Williams
GenderMale
SpecialityEmergency Medicine
Experience24 Years
Location18101 Prince Philip Dr, Olney, Maryland
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 Michael B Williams attended and graduated from Nova Southeastern Univ College Of Dental Medicine in 2000
  NPI Data:
  • NPI Number: 1871577783
  • Provider Enumeration Date: 12/05/2005
  • Last Update Date: 02/04/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 3971565383
  • Enrollment ID: I20041028000570

Medical Identifiers

Medical identifiers for Dr Michael B Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871577783NPI-NPPES
405143200MedicaidMD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine H0061316 (Maryland)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Kaiser Foundation Health Plan Of The Mid-atlantic States, Inc37794958581628

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 Michael B Williams allows following entities to bill medicare on his behalf.
Entity NameEmergency Medicine Associates Pa Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1134117393
PECOS PAC ID: 8022914522
Enrollment ID: O20040126000955
Entity NameKaiser Foundation Health Plan Of The Mid-atlantic States, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043378656
PECOS PAC ID: 3779495858
Enrollment ID: O20080519000558

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 Michael B 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 Michael B Williams, DO
1300 Piccard Dr, Ste 202,
Rockville, MD 20850-4303

Ph: (301) 921-7900
Dr Michael B Williams, DO
18101 Prince Philip Dr, Montgomery General Hospital,
Olney, MD 20832-1514

Ph: (301) 774-8900

Reviews and Comments


Emergency Medicine Doctors in Olney, MD

Jeremy H Graf, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 18101 Prince Philip Dr, Olney, MD 20832
Phone: 301-774-8900    Fax: 301-570-8574
Keith Della Grotta, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 18101 Prince Philip Drive, Emergency Department, Olney, MD 20832
Phone: 301-774-8882    
Kerri H Suissa, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 18101 Prince Philip Dr, Olney, MD 20832
Phone: 301-774-8900    Fax: 301-570-8574
Michael K Kerr, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 18101 Prince Philip Dr, Montgomery General Hospital, Olney, MD 20832
Phone: 301-774-8900    Fax: 301-570-8574
Ellen L Smith, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 18101 Prince Philip Dr, Olney, MD 20832
Phone: 301-774-8900    Fax: 301-570-8574
Dr. Jeffrey Uribe, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 18101 Prince Philip Dr, Olney, MD 20832
Phone: 301-774-8882    
Robert F Larkin, MD
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 18101 Prince Philip Drive, Montgomery General Hospital, Olney, MD 20832
Phone: 301-774-8900    Fax: 301-570-8574

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.