Michael J Grupka, MD - Medicare Gastroenterology in Hiram, GA

Michael J Grupka, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Hiram, Georgia. He graduated from medical school in 2002 and has 22 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Gastrointestinal Specialist Of Georgia and his current practice location is 148 Bill Carruth Pkwy Ste 200, Hiram, Georgia. You can reach out to his office (for appointments etc.) via phone at (678) 741-5000.

Michael J Grupka is licensed to practice in Georgia (license number 060588) 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 1497953467.

Contact Information

Michael J Grupka, MD
148 Bill Carruth Pkwy Ste 200,
Hiram, GA 30141
(678) 741-5000
(770) 445-9013

Map and Direction




Physician's Profile

Full NameMichael J Grupka
GenderMale
SpecialityGastroenterology
Experience22 Years
Location148 Bill Carruth Pkwy Ste 200, Hiram, 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:
  • Michael J Grupka graduated from medical school in 2002
  NPI Data:
  • NPI Number: 1497953467
  • Provider Enumeration Date: 07/10/2007
  • Last Update Date: 05/31/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 3274670583
  • Enrollment ID: I20091019000516

Medical Identifiers

Medical identifiers for Michael J Grupka such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1497953467NPI-NPPES
483829670CMedicaidGA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology 060588 (Georgia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Wellstar Paulding HospitalHiram, GAHospital
Wellstar Douglas HospitalDouglasville, GAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Gastrointestinal Specialist Of Georgia933503282032

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. Michael J Grupka allows following entities to bill medicare on his behalf.
Entity NameGastrointestinal Specialist Of Georgia
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801975339
PECOS PAC ID: 9335032820
Enrollment ID: O20040206000897

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. Michael J Grupka 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
Michael J Grupka, MD
711 Canton Rd Ne Ste 300,
Marietta, GA 30060-8949

Ph: (678) 741-5000
Michael J Grupka, MD
148 Bill Carruth Pkwy Ste 200,
Hiram, GA 30141

Ph: (678) 741-5000

Reviews and Comments


Internal Medicine Doctors in Hiram, GA

Dr. Kathleen A. Long, MD
Gastroenterology
Medicare: Medicare Enrolled
Practice Location: 144 Bill Carruth Pkwy Ste 3100, Hiram, GA 30141
Phone: 678-363-1940    Fax: 678-581-7110
David M. Finkelman, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 144 Bill Carruth Pkwy Ste 3600, Hiram, GA 30141
Phone: 678-486-5500    Fax: 678-486-5502
Judy Oh, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 148 Bill Carruth Pkwy Ste 200, Hiram, GA 30141
Phone: 678-741-5000    Fax: 770-445-9013
Alan Chung-kee Cheng, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 148 Bill Carruth Pkwy, Suite 100, Hiram, GA 30141
Phone: 678-324-4444    Fax: 770-528-9932
Dr. William L Forehand Iii, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 144 Bill Carruth Pkwy Ste 3100, Hiram, GA 30141
Phone: 678-363-1940    Fax: 678-581-7110
Dr. Jeffrey L Tharp, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 176 Charles Hardy Pkwy Unit C, Hiram, GA 30141
Phone: 678-945-8200    Fax: 678-945-8209
Dr. Ijeoma Genevieve Eccles-james, MSC, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 2518 Jimmy Lee Smith Pkwy, Hiram, GA 30141
Phone: 470-644-7000    

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.