NPPES file of Aug 9, 2026

Yousef Ismael, MD

Radiation Oncology Physician · Ottumwa, IA

Yousef Ismael, MD is a radiation oncology physician with a practice address in Ottumwa, Iowa, and NPI 1922657337, issued on Sep 9, 2019. Check the license (Iowa SP-0237, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922657337
Name
Yousef Ismael
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
SP-0237 IA
Self-reported in NPPES; status is on the state search
Practice location
1001 Pennsylvania Ave, Ottumwa, IA 52501
Phone
(641) 684-2300
Enumerated
Sep 9, 2019
Record last updated
Nov 1, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191113001274); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1001 Pennsylvania Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shelley Bechtel, FNP-BCFamily Nurse Practitioner1245601087
  2. Maxwell Bodholdt, DPTPhysical Therapist1639904279
  3. Jonathan Cardon, RNAdult Psychiatric/Mental Health Registered Nurse1275372955
  4. Donald Conklin, M.D.Internal Medicine Physician1285613323
  5. Jennifer Cook, CRNAAnesthesiology Physician1659877066
  6. Lisa Cox, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1861733586

Verify Yousef Ismael in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license SP-0237
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Iowa license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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1% fewer Medicare Part D claims than the average radiation oncology physician in 2024

132 Medicare Part D claims for 57 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 17 claims were for opioids.

  1. Yousef Ismael132
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl56 claims
  2. Lidocaine Hcl Viscous14 claims
  3. Silver Sulfadiazine11 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 one group practice

  1. State University OF IowaIowa City, IA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Yousef Ismael among 67 radiation oncology physician records in Iowa

Yousef Ismael, MD is one of 67 radiation oncology physician records with a practice address in Iowa. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 84% of them.

  • NPI issued2019 · 84% of these records are older, 13% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2005 · median 2010 among the 45 with a school on file
  • Record last updated2019 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Iowa

There are 67 radiation oncology physician records in Iowa.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Gabriel Faria NajasOttumwa, IA 525011295668580
  2. Daniel Rothfuss, M.D.Ottumwa, IA 525011952302606
  3. Candace Correa, M.D.Cedar Rapids, IA 524031952420671
  4. Louis Keiler, M.D.Cedar Rapids, IA 524031033322219
  5. Wook Lee, MDCedar Rapids, IA 524031134135015
  6. Michael Marquardt, M.D.Cedar Rapids, IA 524031639582810
  7. Janet Merfeld, MDCedar Rapids, IA 524031639165087
  8. Gary Shultz, D.O.Cedar Rapids, IA 524031538177241

Common questions

What is Yousef Ismael, MD's NPI number?

Yousef Ismael, MD's National Provider Identifier (NPI) is 1922657337, issued on Sep 9, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Yousef Ismael, MD located?

The NPPES record lists a practice address at 1001 Pennsylvania Ave, Ottumwa, IA, 52501. Phone: (641) 684-2300. Providers update this record themselves, so call before visiting.

How can I verify Yousef Ismael, MD's license?

NPPES lists Iowa license number SP-0237, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Yousef Ismael, MD prescribe under Medicare Part D?

In 2024, Yousef Ismael, MD had 132 Medicare Part D claims for 57 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.