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ALI AHMED KARRAR M.D.
NPI 1871520239
Internal Medicine - Rheumatology in Grand Blanc, MI

Active since June 28, 2006PECOS EnrolledAccepts Medicare Assignment
8200 S SAGINAW ST STE 500, GRAND BLANC, MI 48439(810) 953-8700(810) 953-8704 Get Directions Write a Review

NPPES record last updated: April 8, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 8, 2021, Mar 15, 2018 (2 updates tracked since 2018).

About Ali Ahmed Karrar M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALI AHMED KARRAR M.D. (NPI 1871520239) is an individual rheumatology provider in Grand Blanc, Michigan, licensed in Michigan (AK067638) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Mclaren Bay Region, and maintains a secondary practice location in Saginaw.

NPPES Registry Identity

NPI1871520239
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameALI AHMED KARRARCredential: M.D.
Location Address8200 S SAGINAW ST STE 500Grand Blanc, MI 48439-2451
Mailing Address8200 S Saginaw St Ste 500Grand Blanc, MI 48439-2451 · (810) 953-8700 · Fax (810) 953-8704
Phone(810) 953-8700
Fax(810) 953-8704
Sole ProprietorNo
Medical School CMSOtherGraduated 1980
Enumeration DateJune 28, 2006
Last NPPES UpdateApril 8, 20212 updates tracked since enumeration
NPPES CertifiedApril 8, 2021
✔ NPI 1871520239 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
Licenses✔ Licensed in MI · AK067638✔ Licensed in MI · 4301067638
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
8200 S SAGINAW ST STE 500, Grand Blanc, MI 48439
Open in Google Maps ↗

Secondary Practice Location 1

Location 11522 Janes AveSaginaw, MI 48601-1819 · Phone (989) 755-0316 · Fax (989) 755-0956

Other Identifiers 2

Medicaid104648444MI
OtherAK067638MI · License

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ali Ahmed Karrar M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1456314509
PECOS Enrollment IDI20041109000935
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

5

Medicare enrollment records show Ali Karrar reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Michigan Rheumatology Group PC
Same address
Rheumatology
8200 S SAGINAW ST STE 500
Grand Blanc, MI 48439
  • Reassigned Medicare billing, Michigan enrollment
  • 5 clinicians in this Medicare group
NPI 1689746901 (810) 953-8700
Ascension Genesys Hospital
2.0 mi
Hospice and Palliative Medicine
1 GENESYS PKWY
Grand Blanc, MI 48439
  • Reassigned Medicare billing, Michigan enrollment
  • Medicare enrollment name: Henry Ford Health Genesys Hospital
  • 103 clinicians in this Medicare group
NPI 1104236249 (810) 606-5000
Hurley Medical Center
3.2 mi
Radiology
5494 S DORT HWY
Flint, MI 48507
  • Reassigned Medicare billing, Michigan enrollment
  • 467 clinicians in this Medicare group
NPI 1194143982 (810) 262-7740
Great Lakes Bay Health Centers
40 mi
Federally Qualified Health Center (FQHC)
501 LAPEER
Saginaw, MI 48607
  • Reassigned Medicare billing, Michigan enrollment
  • 229 clinicians in this Medicare group
NPI 1629171707 (989) 759-6464
Saginaw Cooperative Hospitals, Inc
40 mi
Advanced Practice Midwife
1000 HOUGHTON AVE
Saginaw, MI 48602
  • Reassigned Medicare billing, Michigan enrollment
  • 194 clinicians in this Medicare group
NPI 1184711038 (989) 746-7500

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
541 services228 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
60 services33 patients
Dxa bone density measurement of hip, pelvis, spine 77080
A DXA bone density measurement is a simple, quick, and non-invasive procedure that assesses the strength of your bones. This test uses X-rays to measure the amount of minerals, mainly calcium, in the hip, pelvis, and spine. It helps in early detection of osteoporosis or other bone diseases.
48 services48 patients
Complete ultrasound scan of joint 76881
A complete ultrasound scan of a joint is a non-invasive procedure using sound waves to create images of your joint. It helps identify problems like inflammation, injury, or disease. It's painless, safe, and doesn't involve radiation.
44 services24 patients
Aspiration and/or injection of fluid from large joint 20610
This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.
43 services22 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
41 services17 patients

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Mclaren Bay Region

Acute Care Hospitals · Bay City, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230041
Location1900 Columbus AveBay City, MI 48708 · Bay County
Emergency services Birthing friendly

Covenant Medical Center

Acute Care Hospitals · Saginaw, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230070
Location1447 N HarrisonSaginaw, MI 48602 · Saginaw County
Emergency services Birthing friendly

Mclaren Lapeer Region

Acute Care Hospitals · Lapeer, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230193
Location1375 N Main StLapeer, MI 48446 · Lapeer County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48439 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.15 typical visit price
range $54.34 – $166.68
Typical copayment $31.53 (range $13.58 – $41.67)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ELIZABETH BLANZY
Nurse Practitioner (Family)
8200 S SAGINAW ST STE 500
GRAND BLANC, MI 48439
Genesee County (810) 953-8700
THERESA IRENE JENSEN
Nurse Practitioner (Gerontology)
8200 S SAGINAW ST STE 500
GRAND BLANC, MI 48439
Genesee County (810) 953-8700
MICHIGAN RHEUMATOLOGY GROUP PC
Internal Medicine (Rheumatology)
8200 S SAGINAW ST STE 500
GRAND BLANC, MI 48439
Genesee County (810) 953-8700
BARBARA A MCINTOSH-MOORE MD
Internal Medicine (Rheumatology)
8200 S SAGINAW ST STE 500
GRAND BLANC, MI 48439
Genesee County (810) 953-8700

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ali Karrar's NPI number?

The NPI number for Ali Karrar is 1871520239. It was assigned to this individual provider in the NPPES registry on June 28, 2006.

Where is Ali Karrar located?

Ali Karrar practices at 8200 S Saginaw St Ste 500, Grand Blanc, MI 48439. The listed phone number is (810) 953-8700.

What is Ali Karrar's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Ali Karrar enrolled in Medicare?

Yes. Ali Karrar is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Ali Karrar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ali Karrar reassigns Medicare benefits to 5 organizations: Michigan Rheumatology Group PC (Grand Blanc, MI), Ascension Genesys Hospital (Grand Blanc, MI), Hurley Medical Center (Flint, MI), Great Lakes Bay Health Centers (Saginaw, MI) and Saginaw Cooperative Hospitals, Inc (Saginaw, MI). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ali Karrar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ali Karrar accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Ali Karrar as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Ali Karrar affiliated with any hospitals?

According to CMS data, Ali Karrar is affiliated with Mclaren Bay Region, Covenant Medical Center and Mclaren Lapeer Region.

When was this NPI record last updated?

The NPPES record for Ali Karrar was last updated on April 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.