Dr Jennifer Anne Williams, MD - Medicare Obstetrics/gynecology in Ypsilanti, MI

Dr Jennifer Anne Williams, MD is a medicare enrolled "Obstetrics & Gynecology - Maternal & Fetal Medicine" physician in Ypsilanti, Michigan. She went to University Of Michigan Medical School and graduated in 1999 and has 25 years of diverse experience with area of expertise as Obstetrics/gynecology. She is a member of the group practice Iha Health Services Corporation and her current practice location is 4918 W Clark Rd Ste 104, Ypsilanti, Michigan. You can reach out to her office (for appointments etc.) via phone at (734) 528-9125.

Dr Jennifer Anne Williams is licensed to practice in Michigan (license number 4301074621) 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 1245359165.

Contact Information

Dr Jennifer Anne Williams, MD
4918 W Clark Rd Ste 104,
Ypsilanti, MI 48197-1142
(734) 528-9125
(734) 528-9263

Map and Direction




Physician's Profile

Full NameDr Jennifer Anne Williams
GenderFemale
SpecialityObstetrics/gynecology
Experience25 Years
Location4918 W Clark Rd Ste 104, Ypsilanti, Michigan
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 Jennifer Anne Williams attended and graduated from University Of Michigan Medical School in 1999
  NPI Data:
  • NPI Number: 1245359165
  • Provider Enumeration Date: 03/29/2007
  • Last Update Date: 08/05/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 1658304555
  • Enrollment ID: I20090717000288

Medical Identifiers

Medical identifiers for Dr Jennifer Anne Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1245359165NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 4301074621 (Michigan)Secondary
207VM0101XObstetrics & Gynecology - Maternal & Fetal Medicine 4301074621 (Michigan)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Iha Health Services Corporation2466351440945

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 Jennifer Anne Williams allows following entities to bill medicare on her behalf.
Entity NameIha Health Services Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1457408965
PECOS PAC ID: 2466351440
Enrollment ID: O20040108000355

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 Jennifer Anne 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 Jennifer Anne Williams, MD
24 Frank Lloyd Wright Dr, Po Box 0446 Lobby J,
Ann Arbor, MI 48105-9484

Ph: (734) 747-6766
Dr Jennifer Anne Williams, MD
4918 W Clark Rd Ste 104,
Ypsilanti, MI 48197-1142

Ph: (734) 528-9125

Reviews and Comments


Obstetrics & Gynecology Doctors in Ypsilanti, MI

Katharine Micallef, D.O.
Obstetrics & Gynecology
Medicare: Medicare Enrolled
Practice Location: 5333 Mcauley Dr Rm 2110, Ypsilanti, MI 48197
Phone: 734-712-3967    Fax: 734-712-2341
Sharon O'leary, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 4936 W Clark Rd, Building D, Suite 100, Ypsilanti, MI 48197
Phone: 734-434-6200    Fax: 734-434-7373
Dr. Tamara Pelish, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 4940 W Clark Rd, Suite 100, Ypsilanti, MI 48197
Phone: 734-434-0477    Fax: 734-434-6240
Dr. Lisa Rene Jeffries, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 5333 Mcauley Dr, Suite 2110, Ypsilanti, MI 48197
Phone: 734-712-3967    
Dr. Allison Kreske, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 4940 W Clark Rd, Suite 100, Ypsilanti, MI 48197
Phone: 734-434-0477    Fax: 734-434-6240
Dr. Mikel Llanes, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 200 Arnet St, Suite 200, Ypsilanti, MI 48198
Phone: 734-482-6221    
Dr. Gina Long, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 4940 W Clark Rd, Suite 100, Ypsilanti, MI 48197
Phone: 734-434-0477    Fax: 734-434-6240

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.