Mark K. Ono, MD
Radiation Oncology Physician · Scottsdale, AZ
Mark K. Ono, MD is a radiation oncology physician with a practice address in Scottsdale, Arizona, and NPI 1427022144, issued on Feb 17, 2006. Check the license (Arizona 34123, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark K. Ono
- Credential
- MD
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 34123 AZ
C1-0028619 DE
Self-reported in NPPES; status is on the state search - Practice location
- PO Box 4571, Scottsdale, AZ 85261
- Phone
- (480) 254-8613
- Enumerated
- Feb 17, 2006
- Record last updated
- Sep 11, 2025
- Medicaid ID
- 949167 AZ
- Medicare enrollment
- Enrolled (PECOS I20260201000080); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1990
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 156 in Arizona → Look up another NPI →
Verify Mark K. Ono in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 34123Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $567.72
3 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 3,275 providers of this specialty with any payment received $1,897.85 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
- Bayhealth Medical Center, IncMilford, DE
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark K. Ono among 156 radiation oncology physician records in Arizona
Mark K. Ono, MD is one of 156 radiation oncology physician records with a practice address in Arizona. 84% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 51% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1990 · median 2003 among the 115 with a school on file
- Record last updated2025 · 46% 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 Arizona 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 Arizona
There are 156 radiation oncology physician records in Arizona.
All 156 in Arizona → Every provider in Scottsdale → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Aaron Ambrad, MDScottsdale, AZ 852601265411961
- Ammoren Dohm, MDScottsdale, AZ 852601831599380
- Marianne Mildenberger, M.D.Scottsdale, AZ 852601538167945
- Diane Recine, MDScottsdale, AZ 852601295701894
- Vershalee Shukla, MDScottsdale, AZ 852601366726788
- Safia Ahmed, MDScottsdale, AZ 852591548609910
- Sarah James, M.D.Scottsdale, AZ 852591376809814
- Richard Kunath, MDScottsdale, AZ 852591912600818
Common questions
What is Mark K. Ono, MD's NPI number?
Mark K. Ono, MD's National Provider Identifier (NPI) is 1427022144, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark K. Ono, MD located?
The NPPES record lists a practice address at PO Box 4571, Scottsdale, AZ, 85261. Phone: (480) 254-8613. Providers update this record themselves, so call before visiting.
How can I verify Mark K. Ono, MD's license?
NPPES lists Arizona license number 34123, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.