Dr Michael D Williams, MD - Medicare Gastroenterology in Columbia, MO

Dr Michael D Williams, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Columbia, Missouri. He went to University Of Missouri, Columbia School Of Medicine and graduated in 2003 and has 21 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Gastrointestinal Associates, Llp and his current practice location is 210 Portland St Ste 100, Columbia, Missouri. You can reach out to his office (for appointments etc.) via phone at (573) 777-8818.

Dr Michael D Williams is licensed to practice in Missouri (license number 2017008968) 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 1750334470.

Contact Information

Dr Michael D Williams, MD
210 Portland St Ste 100,
Columbia, MO 65201-6677
(573) 777-8818
(573) 777-8819



Physician's Profile

Full NameDr Michael D Williams
GenderMale
SpecialityGastroenterology
Experience21 Years
Location210 Portland St Ste 100, Columbia, Missouri
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 D Williams attended and graduated from University Of Missouri, Columbia School Of Medicine in 2003
  NPI Data:
  • NPI Number: 1750334470
  • Provider Enumeration Date: 05/17/2006
  • Last Update Date: 10/06/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 2769495514
  • Enrollment ID: I20170815000742

Medical Identifiers

Medical identifiers for Dr Michael D Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1750334470NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 2017008968 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Boone Hospital CenterColumbia, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gastrointestinal Associates, Llp953716623625

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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 D Williams allows following entities to bill medicare on his behalf.
Entity NameGastrointestinal Associates, Llp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912950585
PECOS PAC ID: 9537166236
Enrollment ID: O20070103000068

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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 D 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 D Williams, MD
210 Portland St Ste 100,
Columbia, MO 65201-6677

Ph: (573) 777-8818
Dr Michael D Williams, MD
210 Portland St Ste 100,
Columbia, MO 65201-6677

Ph: (573) 777-8818

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Internal Medicine Doctors in Columbia, MO

Dr. Rahul Jain, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1 Hospital Dr, Columbia, MO 65212
Phone: 573-884-2296    Fax: 573-884-7743
Gregory Gaskey, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 1 Hospital Dr, Columbia, MO 65212
Phone: 573-884-9066    Fax: 573-884-3037
Christos N Papageorgiou, M.D., PHD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: One Hospital Drive, Columbia, MO 65212
Phone: 573-882-2100    Fax: 573-884-7822
Jack Bragg, DO
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 101 S Fairview Road, Columbia, MO 65201
Phone: 573-884-7600    Fax: 573-884-8200
Michelle Middleton Woodson, M.D.
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 800 Hospital Dr, Columbia, MO 65201
Phone: 573-814-6000    Fax: 573-814-6584
Dr. Sameer Bellapravalu, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1 Hospital Drive Room 313, Psychiatry Dept Dc067.00, Columbia, MO 65212
Phone: 573-884-6136    Fax: 573-884-1070
Trenton Bickel,
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 1 Hospital Dr # Dc043.00, Columbia, MO 65212
Phone: 573-882-7272    

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