Waseem Chaker Diab, MD
Internal Medicine Physician · Saginaw, MI
Waseem Chaker Diab, MD is an internal medicine physician with a practice address in Saginaw, Michigan, and NPI 1730753328, issued on May 18, 2021. Check the license (Michigan 4301512544, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Waseem Chaker Diab
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301512544 MI
Self-reported in NPPES; status is on the state search - Practice location
- 800 S Washington Ave, Saginaw, MI 48601
- Phone
- (989) 746-7500
- Enumerated
- May 18, 2021
- Record last updated
- Aug 23, 2024
- Medicare enrollment
- Enrolled (PECOS I20240716002308); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 800 S Washington Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samer Abboud, MDInternal Medicine Physician1245804178
- Khurshid Ahmad, M.D.Radiation Oncology Physician1487631222
- Wasef Al-Khateeb, MDInternal Medicine Physician1740912138
- Abdul Aleem, M.DHospitalist Physician1922551019
- Ramadan AlgamalDiagnostic Radiology Physician1801478722
- Mohamed Ayman, MDPulmonary Disease Physician1679131957
Verify Waseem Chaker Diab in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301512544Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
122 Medicare Part D claims for 27 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Ozempic12 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.
Industry payments in 2024: $122.22
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Saginaw Cooperative Hospitals IncSaginaw, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Waseem Chaker Diab among 5,735 internal medicine physician records in Michigan
Waseem Chaker Diab, MD is one of 5,735 internal medicine physician records with a practice address in Michigan. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 83% of them.
- NPI issued2021 · 83% of these records are older, 13% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2019 · median 2006 among the 3,564 with a school on file
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
169 internal medicine physician records list a practice address in Saginaw
They are 169 of the 6,008 NPPES records with a practice address in Saginaw, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Saginaw → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Samer Abboud, MDSaginaw, MI 486011245804178
- Wasef Al-Khateeb, MDSaginaw, MI 486011740912138
- Reina Badran, MDSaginaw, MI 486011730609256
- Lakshmi Gowda Hanumaiah, MDSaginaw, MI 486011770714370
- Ayesha Khan, M.D.Saginaw, MI 486011275583882
- Sadia Khan, MDSaginaw, MI 486011881633048
- Muhammad Khan, M.D.Saginaw, MI 486011689771099
- Muhammad Khan, MDSaginaw, MI 486011881896975
Common questions
What is Waseem Chaker Diab, MD's NPI number?
Waseem Chaker Diab, MD's National Provider Identifier (NPI) is 1730753328, issued on May 18, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Waseem Chaker Diab, MD located?
The NPPES record lists a practice address at 800 S Washington Ave, Saginaw, MI, 48601. Phone: (989) 746-7500. Providers update this record themselves, so call before visiting.
How can I verify Waseem Chaker Diab, MD's license?
NPPES lists Michigan license number 4301512544, 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 Waseem Chaker Diab, MD prescribe under Medicare Part D?
In 2024, Waseem Chaker Diab, MD had 122 Medicare Part D claims for 27 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.