Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Diana Aldona Roth O'Brien, MD, MPH, BA

Individual provider Radiation Oncology Physician · NPI 1043606957

Diana Aldona Roth O'Brien, MD, MPH, BA practises Radiation Oncology in Montvale, New Jersey. Qualified in 2015, 11 years ago. Practices with Memorial Radiation Oncology Group, a 91-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
11
Licensed in
NY
In the registry since
2015
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MPH — Master of Public Health
A graduate degree in population health.
BA — Bachelor of Arts
An undergraduate arts degree.

See every abbreviation used in this directory →

Practice location Address checks out

225 Summit Ave
Montvale, NJ 07645-1523
Phone: (201) 775-7000
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 304526 (NY)

Record details

NPI number1043606957
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , MPH , BA
Sole proprietorNo
NPI enumeratedApril 8, 2015
Last updated in NPPESAugust 3, 2020
Certification dateAugust 3, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyRADIATION ONCOLOGY
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Memorial Radiation Oncology Group — 91 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations7 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients665
Services billed 3,453 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Affiliated with 1 hospital, which CMS identifies by certification number only.

Colleagues at Memorial Radiation Oncology Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 91 clinicians in the practice; 12 are shown here.

Other providers in Montvale