Frederick Karoub, MD
Internal Medicine Physician · Royal Oak, MI
Frederick Karoub, MD is an internal medicine physician with a practice address in Royal Oak, Michigan, and NPI 1679554562, issued on Nov 8, 2005. Check the license (Michigan 4301059587, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Frederick Karoub
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 4301059587 MI
Self-reported in NPPES; status is on the state search - Practice location
- 4045 W 13 Mile RD, Royal Oak, MI 48073
- Phone
- (248) 288-2160
- Enumerated
- Nov 8, 2005
- Record last updated
- Mar 8, 2022
- Fax
- (248) 288-0783
- Medicaid ID
- 1679554562 MI
- Medicare enrollment
- Enrolled (PECOS I20090826000517); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 5,735 in Michigan → Look up another NPI →
Also registered at 4045 W 13 Mile RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Mina AssoPharmacist1932974003
- Carl Karoub, MDInternal Medicine Physician1063494706
- Yahya Mossa-Basha, M.D.Diagnostic Radiology Physician1386790004
Verify Frederick Karoub in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301059587Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.2 times the Medicare Part D claims of the average internal medicine physician in 2024
13,188 Medicare Part D claims for 570 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 458 claims were for opioids.
Most prescribed
- Atorvastatin Calcium917 claims
- Levothyroxine Sodium417 claims
- Amlodipine Besylate391 claims
- Alprazolam382 claims
- Omeprazole309 claims
- Lisinopril278 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 89.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Frederick Karoub among 5,735 internal medicine physician records in Michigan
Frederick Karoub, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1992 · median 2006 among the 3,564 with a school on file
- Record last updated2022 · 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
- Carl Karoub, MDRoyal Oak, MI 480731063494706
- Lynda MisraRoyal Oak, MI 480731942225206
Common questions
What is Frederick Karoub, MD's NPI number?
Frederick Karoub, MD's National Provider Identifier (NPI) is 1679554562, issued on Nov 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Frederick Karoub, MD located?
The NPPES record lists a practice address at 4045 W 13 Mile RD, Royal Oak, MI, 48073. Phone: (248) 288-2160. Providers update this record themselves, so call before visiting.
How can I verify Frederick Karoub, MD's license?
NPPES lists Michigan license number 4301059587, 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 Frederick Karoub, MD prescribe under Medicare Part D?
In 2024, Frederick Karoub, MD had 13,188 Medicare Part D claims for 570 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Frederick Karoub, MD's MIPS final score?
The 2023 MIPS final score is 89.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.