Dr Geoffrey Colin Williams, MD, PHD in Ann Arbor, MI

Dr Geoffrey Colin Williams, MD, PHD is a medicare enrolled "Internal Medicine" physician in Ann Arbor, Michigan. He went to Wayne State University School Of Medicine and graduated in 1983 and has 41 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Regents Of The University Of Michigan and his current practice location is 24 Frank Lloyd Wright Dr, Ann Arbor, Michigan. You can reach out to his office (for appointments etc.) via phone at (888) 287-1082.

Dr Geoffrey Colin Williams is licensed to practice in Michigan (license number 4301508919) 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 1386673622.

Contact Information

	Dr Geoffrey Colin Williams, MD, PHD
	24 Frank Lloyd Wright Dr, Ann Arbor, MI 48105-9484
	(888) 287-1082
	Not Available

Map and Direction

Physician's Profile

Full Name	Dr Geoffrey Colin Williams
Gender	Male
Speciality	Internal Medicine
Experience	41 Years
Location	24 Frank Lloyd Wright Dr, Ann Arbor, Michigan
Accepts Medicare Assignments	Yes. 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 Geoffrey Colin Williams attended and graduated from Wayne State University School Of Medicine in 1983

NPI Data:

NPI Number: 1386673622
Provider Enumeration Date: 06/30/2006
Last Update Date: 09/15/2023

Medicare PECOS Information:

PECOS PAC ID: 0143264945
Enrollment ID: I20230920001279

Medical Identifiers

Medical identifiers for Dr Geoffrey Colin Williams such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1386673622	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207R00000X	Internal Medicine	162638 (New York)	Secondary
207R00000X	Internal Medicine	4301508919 (Michigan)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
University Of Michigan Health System	Ann arbor, MI	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Regents Of The University Of Michigan	3779496856	2916

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 Geoffrey Colin Williams allows following entities to bill medicare on his behalf.

Entity Name	Regents Of The University Of Michigan
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1952331936 PECOS PAC ID: 3779496856 Enrollment ID: O20031117000265

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 Geoffrey Colin 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 Address	Practice Location Address
Dr Geoffrey Colin Williams, MD, PHD 3621 S State St, Ann Arbor, MI 48108-1633 Ph: () -	Dr Geoffrey Colin Williams, MD, PHD 24 Frank Lloyd Wright Dr, Ann Arbor, MI 48105-9484 Ph: (888) 287-1082

Reviews and Comments

Internal Medicine Doctors in Ann Arbor, MI

Nabil Alkhoury Fallouh, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 1500 East Medical Center Dr, 3rd Floor Taubman Ctr Recp B, Ann Arbor, MI 48109 Phone: 734-936-5582
Sameer Dev Saini, M.D. Internal Medicine Medicare: Medicare Enrolled Practice Location: 1500 E Medical Center Dr, Ann Arbor, MI 48109 Phone: 734-936-4000
Dr. David Alexander Stewart, M.D. Internal Medicine Medicare: Medicare Enrolled Practice Location: 1500 E Medical Center Dr, 12th Floor C.s. Mott Children's Hospital Room 525, Ann Arbor, MI 48109 Phone: 734-763-5302 Fax: 734-647-5624
Dr. Aiman M Mahmood, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 1500 E Medical Center Dr, Med Inn C728, Ann Arbor, MI 48109 Phone: 734-998-0891
Anastasia Irene Wasylyshyn, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 1500 E Medical Center Dr, Ann Arbor, MI 48109 Phone: 734-936-4000
Katherine Saber Salisbury, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 4260 Plymouth Rd, Ann Arbor, MI 48109 Phone: 734-764-6831
Anne Lewis Carlton, Internal Medicine Medicare: Not Enrolled in Medicare Practice Location: 1500 E Medical Center Dr, Ann Arbor, MI 48109 Phone: 734-647-5900

Dr Geoffrey Colin Williams, MD, PHD - Medicare Internal Medicine in Ann Arbor, MI