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NORTHMAIN RADIATION ONCOLOGY
NPI 1376546267
Radiology - Radiation Oncology in Providence, RI

Active since May 24, 2005
825 N MAIN ST, PROVIDENCE, RI 02904(401) 521-9700(401) 751-1686 Get Directions Write a Review

NPPES record last updated: June 10, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Northmain Radiation Oncology NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NORTHMAIN RADIATION ONCOLOGY (NPI 1376546267) is a healthcare organization registered as a radiation oncology in Providence, Rhode Island and active in the NPI registry since May 2005. The organization lists Nicklas E. Oldenburg, President, as its authorized official.

NPPES Registry Identity

NPI1376546267
Entity TypeOrganization
Primary Taxonomy2085R0001X
Legal Business NameRADIATION ONCOLOGY ASSOCIATES INC
Location Address825 N MAIN STProvidence, RI 02904-5707
Mailing Address825 N Main StProvidence, RI 02904-5707 · (401) 521-9700 · Fax (401) 751-1686
Phone(401) 521-9700
Fax(401) 751-1686
Organization SubpartNo
Authorized OfficialNicklas E. OldenburgPresident · (401) 521-9700
Enumeration DateMay 24, 2005
Last NPPES UpdateJune 10, 2021
NPPES CertifiedJune 10, 2021
✔ NPI 1376546267 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0001X
Definition
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
825 N MAIN ST, Providence, RI 02904
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Other Names 1

Doing Business AsNorthmain Radiation Oncology

Other Identifiers 2

Medicaid9000233RI
OtherCE6091RI · Rr Medicare

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include WellSense Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Northmain Radiation Oncology is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

6

Medicare enrollment records show 6 clinicians reassign Medicare billing to Northmain Radiation Oncology, which bills Medicare for the services they deliver. Of these, 4 practice at this address. They are listed nearest first.

Clinicians, nearest first (6)

Sheva Mirdamadi- Tehrani, NP
Nurse Practitioner
NPI 1689030579
825 N MAIN ST
Providence, RI 02904
(401) 521-9700
✔ PECOS✔ Accepts MedicareSame address
Nicklas Oldenburg, M.D.
Radiation Oncology
NPI 1801899760
825 N MAIN ST
Providence, RI 02904
(401) 521-9700
✔ PECOS✔ Accepts MedicareSame address
Allen Rossetti Chung, M.D., PH.D.
Radiation Oncology
NPI 1669834552
825 N MAIN ST
Providence, RI 02904
(401) 437-5865
✔ PECOS✔ Accepts MedicareSame address
Donald Joyce, M.D.
Radiation Oncology
NPI 1871596833
825 N MAIN ST
Providence, RI 02904
(401) 521-9700
✔ PECOS✔ Accepts MedicareSame address
Steven Lane, M.D.
Radiation Oncology
NPI 1346235256
680 CENTRE ST
Brockton, MA 02302
(508) 941-7450
✔ PECOS✔ Accepts Medicare27 mi
Michele Albert, MD
Radiation Oncology
NPI 1285691972
75 FRANCIS STREET ASB1 L2 BRIGHAM AND WOMENS HOSPITAL RADIATION ONCOLOGY
Boston, MA 02115
(617) 732-7936
✔ PECOS✔ Accepts Medicare37 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Radiation Oncology Associates Inc's NPI number?

The NPI number for Radiation Oncology Associates Inc is 1376546267. It was assigned to this organization in the NPPES registry on May 24, 2005. The provider is doing business as Northmain Radiation Oncology.

Where is Radiation Oncology Associates Inc located?

Radiation Oncology Associates Inc is located at 825 N Main St, Providence, RI 02904. The listed phone number is (401) 521-9700.

What is Radiation Oncology Associates Inc's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Radiation Oncology Associates Inc enrolled in Medicare?

Yes. Radiation Oncology Associates Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Radiation Oncology Associates Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 6 clinicians in 2 Medicare specialties reassign their Medicare billing to Radiation Oncology Associates Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Radiation Oncology (5) and Nurse Practitioner (1). Of these, 4 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Radiation Oncology Associates Inc accept?

Health plans from WellSense Health Plan list Radiation Oncology Associates Inc as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Radiation Oncology Associates Inc was last updated on June 10, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.