Ishmael A. Jaiyesimi, D.O.
Hematology & Oncology Physician · Royal Oak, MI
Ishmael A. Jaiyesimi, D.O. is a hematology & oncology physician with a practice address in Royal Oak, Michigan, and NPI 1538128178, issued on Mar 22, 2006. Check the license (Michigan 5101009654, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Ishmael A. Jaiyesimi
- Credential
- D.O.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 5101009654 MI
Self-reported in NPPES; status is on the state search - Practice location
- 3577 W 13 Mile RD, Royal Oak, MI 48073
- Phone
- (248) 551-6991
- Enumerated
- Mar 22, 2006
- Record last updated
- Aug 27, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (248) 551-6910
- Medicare enrollment
- Enrolled (PECOS I20100222000155); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 340 in Michigan → Look up another NPI →
Also registered at 3577 W 13 Mile RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nasser AldhaibaniRadiation Oncology Physician1952615932
- Joseph Anderson, M.D.Medical Oncology Physician1629146154
- Carol Appel, N.P.Nurse Practitioner1053370551
- Samer Ballouz, M.D.Hematology & Oncology Physician1528068020
- Pamela Benitez, MDSurgery Physician1992878722
- Donald BrabbinsRadiation Oncology Physician1639148018
Verify Ishmael A. Jaiyesimi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 5101009654Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,340 Medicare Part D claims for 249 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 172 claims were for opioids.
Most prescribed
- Revlimid111 claims
- Calquence87 claims
- Anastrozole67 claims
- Letrozole66 claims
- Acyclovir60 claims
- Eliquis59 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: $2,097.49
46 payments; by number, the most common kind was food and beverage; the largest payer was Novartis Pharmaceuticals Corporation. The 8,560 providers of this specialty with any payment received $7,481.41 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 2 group practices
- Beaumont Medical Group- Specialty ServicesFarmington Hills, MI
- Michigan Healthcare Professionals PCRoyal Oak, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ishmael A. Jaiyesimi among 340 hematology & oncology physician records in Michigan
Ishmael A. Jaiyesimi, D.O. is one of 340 hematology & oncology physician records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1986 · median 2004 among the 206 with a school on file
- Record last updated2010 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Michigan
There are 340 hematology & oncology physician records in Michigan.
All 340 in Michigan → Every provider in Royal Oak → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Samer Ballouz, M.D.Royal Oak, MI 480731528068020
- Janet Chapman, M.D.Royal Oak, MI 480731972723385
- Matthew Cotant, M.D.Royal Oak, MI 480731003930215
- Marianne Huben, D.O.Royal Oak, MI 480731871552414
- Mohammed Ibrahim, MDRoyal Oak, MI 480731891701082
- Deepa Jagtap, M.D.Royal Oak, MI 480731629190095
- Manolo Magno, M.D.Royal Oak, MI 480731659371151
- Laura Nadeau, M.D.Royal Oak, MI 480731457340390
Common questions
What is Ishmael A. Jaiyesimi, D.O.'s NPI number?
Ishmael A. Jaiyesimi, D.O.'s National Provider Identifier (NPI) is 1538128178, issued on Mar 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ishmael A. Jaiyesimi, D.O. located?
The NPPES record lists a practice address at 3577 W 13 Mile RD, Royal Oak, MI, 48073. Phone: (248) 551-6991. Providers update this record themselves, so call before visiting.
How can I verify Ishmael A. Jaiyesimi, D.O.'s license?
NPPES lists Michigan license number 5101009654, 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 Ishmael A. Jaiyesimi, D.O. prescribe under Medicare Part D?
In 2024, Ishmael A. Jaiyesimi, D.O. had 1,340 Medicare Part D claims for 249 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.