Mahmoud Hassan Kassir, MD
Family Medicine Physician · Mattawan, MI
Mahmoud Hassan Kassir, MD is a family medicine physician with a practice address in Mattawan, Michigan, and NPI 1588154322, issued on May 17, 2018. Check the license (Michigan 4301504926, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Mahmoud Hassan Kassir
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 4301504926 MI
4351039636 MI
Self-reported in NPPES; status is on the state search - Practice location
- 24466 Red Arrow Hwy, Mattawan, MI 49071
- Phone
- (269) 668-4180
- Enumerated
- May 17, 2018
- Record last updated
- Sep 13, 2022
- Medicare enrollment
- Enrolled (PECOS I20210616001091); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →
Also registered at 24466 Red Arrow Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Karen Chandler, NPFamily Nurse Practitioner1669007944
Verify Mahmoud Hassan Kassir in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301504926Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
24% more Medicare Part D claims than the average family medicine physician in 2024
4,381 Medicare Part D claims for 328 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 399 claims were for opioids.
Most prescribed
- Atorvastatin Calcium182 claims
- Hydrocodone-Acetaminophen164 claims
- Levothyroxine Sodium140 claims
- Amlodipine Besylate126 claims
- Lisinopril118 claims
- Omeprazole110 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 4 group practices
- Detroit Medical Consultants PCDetroit, MI
- Iha Health Services CorporationLivonia, MI
- Mdslivenow PLLCDetroit, MI
- Senior Care Health Group PLLCDetroit, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mahmoud Hassan Kassir among 6,013 family medicine physician records in Michigan
Mahmoud Hassan Kassir, MD is one of 6,013 family medicine physician records with a practice address in Michigan. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 76% of them.
- NPI issued2018 · 76% of these records are older, 21% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2017 · median 2008 among the 3,493 with a school on file
- Record last updated2022 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 family medicine physician records list a practice address in Mattawan
They are 3 of the 102 NPPES records with a practice address in Mattawan, and 6,013 family medicine physician records in Michigan.
All 6,013 in Michigan → Every provider in Mattawan → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Martin Hoffmann, MDMattawan, MI 490711891794160
- Steve Reiman, DOMattawan, MI 490711205835535
- Sami Ahmed, M.D.Marshall, MI 490681013355569
- Rick AriasMarshall, MI 490681124588199
- James Dobbins, MDMarshall, MI 490681508805706
- Melissa Gates, D.O.Marshall, MI 490681417362039
- Kaitlyn Hite, MDMarshall, MI 490681366903791
- Brittany Irey Heisler, M.D.Marshall, MI 490681922323872
Common questions
What is Mahmoud Hassan Kassir, MD's NPI number?
Mahmoud Hassan Kassir, MD's National Provider Identifier (NPI) is 1588154322, issued on May 17, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Mahmoud Hassan Kassir, MD located?
The NPPES record lists a practice address at 24466 Red Arrow Hwy, Mattawan, MI, 49071. Phone: (269) 668-4180. Providers update this record themselves, so call before visiting.
How can I verify Mahmoud Hassan Kassir, MD's license?
NPPES lists Michigan license number 4301504926, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mahmoud Hassan Kassir, MD prescribe under Medicare Part D?
In 2024, Mahmoud Hassan Kassir, MD had 4,381 Medicare Part D claims for 328 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.