Ali Ahmed Karrar, MD - Medicare Rheumatology in Grand Blanc, MI

Ali Ahmed Karrar, MD is a medicare enrolled "Internal Medicine - Rheumatology" physician in Grand Blanc, Michigan. He graduated from medical school in 1980 and has 44 years of diverse experience with area of expertise as Rheumatology. He is a member of the group practice Ascension Genesys Hospital, Great Lakes Bay Health Centers, Michigan Rheumatology Group Pc and his current practice location is 8200 S Saginaw St Ste 500, Grand Blanc, Michigan. You can reach out to his office (for appointments etc.) via phone at (810) 953-8700.

Ali Ahmed Karrar is licensed to practice in Michigan (license number AK067638) 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 1871520239.

Contact Information

Ali Ahmed Karrar, MD
8200 S Saginaw St Ste 500,
Grand Blanc, MI 48439-2451
(810) 953-8700
(810) 953-8704

Map and Direction




Physician's Profile

Full NameAli Ahmed Karrar
GenderMale
SpecialityRheumatology
Experience44 Years
Location8200 S Saginaw St Ste 500, Grand Blanc, Michigan
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:
  • Ali Ahmed Karrar graduated from medical school in 1980
  NPI Data:
  • NPI Number: 1871520239
  • Provider Enumeration Date: 06/28/2006
  • Last Update Date: 04/08/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 1456314509
  • Enrollment ID: I20041109000935

Medical Identifiers

Medical identifiers for Ali Ahmed Karrar such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871520239NPI-NPPES
104648444MedicaidMI
AK067638OtherMILICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RR0500XInternal Medicine - Rheumatology 4301067638 (Michigan)Secondary
207RR0500XInternal Medicine - Rheumatology AK067638 (Michigan)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Genesys Regional Medical Center - Health ParkGrand blanc, MIHospital
Mclaren FlintFlint, MIHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ascension Genesys Hospital206232303393
Great Lakes Bay Health Centers246636904665
Michigan Rheumatology Group Pc58907837733

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. Ali Ahmed Karrar allows following entities to bill medicare on his behalf.
Entity NameHurley Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982630844
PECOS PAC ID: 2961308481
Enrollment ID: O20031208000375
Entity NameAscension Genesys Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528283033
PECOS PAC ID: 2062323033
Enrollment ID: O20031208000842
Entity NameSaginaw Cooperative Hospitals Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346344991
PECOS PAC ID: 3971400318
Enrollment ID: O20031215000723
Entity NameGreat Lakes Bay Health Centers
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1871684761
PECOS PAC ID: 2466369046
Enrollment ID: O20040126000171
Entity NameMichigan Rheumatology Group Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689746901
PECOS PAC ID: 5890783773
Enrollment ID: O20040501000237

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. Ali Ahmed Karrar 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
Ali Ahmed Karrar, MD
8200 S Saginaw St Ste 500,
Grand Blanc, MI 48439-2451

Ph: (810) 953-8700
Ali Ahmed Karrar, MD
8200 S Saginaw St Ste 500,
Grand Blanc, MI 48439-2451

Ph: (810) 953-8700

Reviews and Comments


Internal Medicine Doctors in Grand Blanc, MI

Dr. Indira Alluru, MD
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Phone: 810-695-1849    Fax: 810-695-1736
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Ziauddin Syed,
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Phone: 810-606-5981    Fax: 810-606-5990
Dr. Daniel Ramirez, DO
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Medicare: Medicare Enrolled
Practice Location: 1 Genesys Parkway, Medical Education Suite 4626, Grand Blanc, MI 48439
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Sherehan Ibrahim, MD
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Practice Location: 1 Genesys Pkwy, Grand Blanc, MI 48439
Phone: 810-606-5000    
Paul Lafia, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 3399 Pollock Rd, Grand Blanc, MI 48439
Phone: 810-603-0170    Fax: 810-579-1705

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.