Mark Ono, MD
NPI 1427022144 · Radiation Oncology Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Ono, MD is a Radiation Oncology Physician provider in Scottsdale, AZ (NPI 1427022144).
Provider details
- NPI number
- 1427022144
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 34123 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$568 across 3 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 640 S State StDover, DE 19901-3530Phone: (302) 744-7000
Registry dates
- Enumerated
- 2006-02-17
- Last updated
- 2025-09-11
- Certified
- 2025-09-11
Frequently asked questions
- What is Mark Ono's NPI number?
- Mark Ono's National Provider Identifier (NPI) is 1427022144, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Ono's specialty?
- Mark Ono is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Ono located?
- Mark Ono's practice location on file with NPPES is Po Box 4571, Scottsdale, AZ 85261-4571.
- What is Mark Ono's phone number?
- The practice phone number listed in the NPPES registry for Mark Ono is (480) 254-8613.
- Does Mark Ono accept Medicare?
- Mark Ono is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Ono's NPI active?
- Yes — Mark Ono's NPI (1427022144) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.