Rita Kassab, DO
Internal Medicine Physician · Royal Oak, MI
Rita Kassab, DO is an internal medicine physician with a practice address in Royal Oak, Michigan, and NPI 1497384622, issued on Apr 8, 2020. Check the license (Michigan 5101027522, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Rita Kassab
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 5101027522 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3601 W 13 Mile RD, Royal Oak, MI 48073
- Phone
- (248) 898-5000
- Enumerated
- Apr 8, 2020
- Record last updated
- Oct 8, 2023
- Medicare enrollment
- Enrolled (PECOS I20230522003391); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2020
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 3601 W 13 Mile RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Rita Kassab in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101027522Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average internal medicine physician in 2024
589 Medicare Part D claims for 165 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 30 claims were for opioids.
Most prescribed
- Losartan Potassium25 claims
- Omeprazole25 claims
- Eliquis22 claims
- Atorvastatin Calcium20 claims
- Famotidine18 claims
- Furosemide15 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: $121.36
1 payment: food and beverage; the largest payer was Amgen 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
- St Michaels Internal Medicine Physicians PLLCWest Bloomfield, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rita Kassab among 5,735 internal medicine physician records in Michigan
Rita Kassab, DO 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 2020, is newer than 79% of them.
- NPI issued2020 · 79% of these records are older, 17% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2020 · median 2006 among the 3,564 with a school on file
- Record last updated2023 · 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).
218 internal medicine physician records list a practice address in Royal Oak
They are 218 of the 3,887 NPPES records with a practice address in Royal Oak, and 5,735 internal medicine physician records in Michigan.
All 5,735 in Michigan → Every provider in Royal Oak → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Shanu Agarwal, MDRoyal Oak, MI 480731992759302
- Michael BarnesRoyal Oak, MI 480731588633176
- Robin Ehrmann, MDRoyal Oak, MI 480731992788541
- Ali Farhat, MDRoyal Oak, MI 480731467411363
- Brent FullerRoyal Oak, MI 480731871552646
- Joseph James, MDRoyal Oak, MI 480731154398196
- Frederick Karoub, MDRoyal Oak, MI 480731679554562
- Carl Karoub, MDRoyal Oak, MI 480731063494706
Common questions
What is Rita Kassab, DO's NPI number?
Rita Kassab, DO's National Provider Identifier (NPI) is 1497384622, issued on Apr 8, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Rita Kassab, DO located?
The NPPES record lists a practice address at 3601 W 13 Mile RD, Royal Oak, MI, 48073. Phone: (248) 898-5000. Providers update this record themselves, so call before visiting.
How can I verify Rita Kassab, DO's license?
NPPES lists Michigan license number 5101027522, 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 Rita Kassab, DO prescribe under Medicare Part D?
In 2024, Rita Kassab, DO had 589 Medicare Part D claims for 165 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.