Dr Janssen Jacob Williams, MD - Medicare Internal Medicine in Mcdonough, GA

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Dr Janssen Jacob Williams, MD is a medicare enrolled "Internal Medicine" physician in Mcdonough, Georgia. He went to University Of Nebraska College Of Medicine and graduated in 1990 and has 34 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Southeast Medical Group, P.c. and his current practice location is 4303 Jodeco Rd, Mcdonough, Georgia. You can reach out to his office (for appointments etc.) via phone at (618) 546-5464.

Dr Janssen Jacob Williams is licensed to practice in Indiana (license number 01076261A) 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 1568548790.

Contact Information

Dr Janssen Jacob Williams, MD
4303 Jodeco Rd,
Mcdonough, GA 30253-8297
(618) 546-5464
(618) 546-2648

Map and Direction




Physician's Profile

Full NameDr Janssen Jacob Williams
GenderMale
SpecialityInternal Medicine
Experience34 Years
Location4303 Jodeco Rd, Mcdonough, Georgia
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 Janssen Jacob Williams attended and graduated from University Of Nebraska College Of Medicine in 1990
  NPI Data:
  • NPI Number: 1568548790
  • Provider Enumeration Date: 10/31/2006
  • Last Update Date: 05/10/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 9133279698
  • Enrollment ID: I20160408001038

Medical Identifiers

Medical identifiers for Dr Janssen Jacob Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1568548790NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 19536 (Nebraska)Secondary
207R00000XInternal Medicine 01076261A (Indiana)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Piedmont Henry HospitalStockbridge, GAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Southeast Medical Group, P.c.357755967396

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 Janssen Jacob Williams allows following entities to bill medicare on his behalf.
Entity NameSoutheast Medical Group, P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235296054
PECOS PAC ID: 3577559673
Enrollment ID: O20040423000347
Entity NamePhoebe Physician Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487899464
PECOS PAC ID: 8426112350
Enrollment ID: O20090121000583
Entity NameMagna Care Medical Specialists Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487002382
PECOS PAC ID: 9638463003
Enrollment ID: O20160808001242
Entity NameMuscogee Hospitalist Services, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1639681851
PECOS PAC ID: 8921368564
Enrollment ID: O20180130003094
Entity NameBenning Hospitalist Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1215442173
PECOS PAC ID: 5698038479
Enrollment ID: O20180409000613
Entity NameJdmf Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1427759802
PECOS PAC ID: 7416312251
Enrollment ID: O20230428002481

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 Janssen Jacob 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 Janssen Jacob Williams, MD
1000 N Allen St,
Robinson, IL 62454-1167

Ph: (618) 546-5464		Dr Janssen Jacob Williams, MD
4303 Jodeco Rd,
Mcdonough, GA 30253-8297

Ph: (618) 546-5464

Reviews and Comments


Internal Medicine Doctors in Mcdonough, GA

Christian Aidoo, M.D
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Practice Location: 2303 Flowers Creek Dr, Mcdonough, GA 30253
Phone: 770-686-6511    
John Darrell Smith, MD
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Practice Location: 3333 Jodeco Road, Suite A, Mcdonough, GA 30253
Phone: 770-692-4000    Fax: 770-474-8510
Gopal C Rao, MD
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Willie F Rainey, MD
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Practice Location: 1125 Town Center Village Dr, Henry Towne Centre Medical Center, Mcdonough, GA 30253
Phone: 678-583-6600    
Dr. Gregory Paul Petro, MD
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Practice Location: 3333 Jodeco Road, Suite A, Mcdonough, GA 30253
Phone: 770-692-4000    Fax: 770-474-8510
Meryl L Braunstein, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3333 Jodeco Road, Suite A, Mcdonough, GA 30253
Phone: 770-692-4000    Fax: 770-474-8510
Dagmawit Assefa Mekuria, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 50 Kelly Rd, Mcdonough, GA 30253
Phone: 770-914-0116    

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).

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