NPPES file of Aug 9, 2026

Halil Omer Ikizler, MD

Radiation Oncology Physician · Grants Pass, OR

Halil Omer Ikizler, MD is a radiation oncology physician with a practice address in Grants Pass, Oregon, and NPI 1689102261, issued on May 26, 2017. Check the license (Oregon MD209562, as entered in NPPES) on the Oregon Medical Board; 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
1689102261
Name
Halil Omer Ikizler
Credential
MD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
MD209562 OR
Self-reported in NPPES; status is on the state search
Practice location
500 SW Ramsey Ave, Grants Pass, OR 97527
Phone
(541) 472-7040
Enumerated
May 26, 2017
Record last updated
Aug 3, 2026
Medicare enrollment
Enrolled (PECOS I20220523000405); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 2017
Telehealth
Offers telehealth (CMS)
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 500 SW Ramsey Ave

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

  1. Rachel AlexanianPhysician Assistant1346993326
  2. Keith Anderson, CRNACertified Registered Nurse Anesthetist1073590733
  3. Whitney Baker, MDEmergency Medicine Physician1659582161
  4. Kelsey Balcita, PHARMDPharmacist1720636574
  5. Matthew Beeson, MDEmergency Medicine Physician1942643077
  6. Cody Biller, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1821375833

Verify Halil Omer Ikizler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD209562
    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 Oregon 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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2.2 times the Medicare Part D claims of the average radiation oncology physician in 2024

289 Medicare Part D claims for 111 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 37 claims were for opioids.

  1. Halil Ikizler289
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl64 claims
  2. Lidocaine Hcl Viscous33 claims
  3. Triamcinolone Acetonide29 claims
  4. Oxycodone Hcl16 claims
  5. Oxybutynin Chloride12 claims
  6. Hydrocodone-Acetaminophen11 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 3 group practices

  1. AsanteMedford, OR
  2. Asante Three Rivers Medical Center LLCGrants Pass, OR
  3. Radiation Oncology Group Consultants P CMedford, OR

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

Halil Omer Ikizler among 115 radiation oncology physician records in Oregon

Halil Omer Ikizler, MD is one of 115 radiation oncology physician records with a practice address in Oregon. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 84% of them.

  • NPI issued2017 · 84% of these records are older, 10% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2017 · median 2006 among the 85 with a school on file
  • Record last updated2026 · 50% 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 Oregon 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 Oregon

There are 115 radiation oncology physician records in Oregon.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Theodore Robnett, M.D.Grants Pass, OR 975271952307522
  2. Kenneth Haugen, M.D.Medford, OR 975041710946959
  3. Craig Haveman, M.D.Medford, OR 975041942269170
  4. Gordon Metz, M.D.Medford, OR 975041649239435
  5. Eric Mullen, M.D.Medford, OR 975041164481321
  6. Jere Sandefur, M.D.Medford, OR 975041790744928
  7. Michael Brown, M.D.Roseburg, OR 974711124079140
  8. David Gallardo, MDRoseburg, OR 974711114913282

Common questions

What is Halil Omer Ikizler, MD's NPI number?

Halil Omer Ikizler, MD's National Provider Identifier (NPI) is 1689102261, issued on May 26, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Halil Omer Ikizler, MD located?

The NPPES record lists a practice address at 500 SW Ramsey Ave, Grants Pass, OR, 97527. Phone: (541) 472-7040. Providers update this record themselves, so call before visiting.

How can I verify Halil Omer Ikizler, MD's license?

NPPES lists Oregon license number MD209562, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Halil Omer Ikizler, MD prescribe under Medicare Part D?

In 2024, Halil Omer Ikizler, MD had 289 Medicare Part D claims for 111 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.