Radiological Associates of Sacramento Medical Group
NPI 1538140645 · Radiation Oncology Physician · Sacramento, CA
Radiological Associates of Sacramento Medical Group is a Radiation Oncology Physician organization in Sacramento, CA (NPI 1538140645).
Provider details
- NPI number
- 1538140645
- Entity type
- Organization
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jonathan Breslau, President(916) 646-8300
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-07
- Last updated
- 2011-10-27
Frequently asked questions
- What is Radiological Associates of Sacramento Medical Group's NPI number?
- Radiological Associates of Sacramento Medical Group's National Provider Identifier (NPI) is 1538140645, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Radiological Associates of Sacramento Medical Group?
- Radiological Associates of Sacramento Medical Group is classified in the NPPES registry as Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Radiological Associates of Sacramento Medical Group located?
- Radiological Associates of Sacramento Medical Group's practice location on file with NPPES is 4001 J St, Sacramento, CA 95819-3626.
- What is Radiological Associates of Sacramento Medical Group's phone number?
- The practice phone number listed in the NPPES registry for Radiological Associates of Sacramento Medical Group is (916) 453-4528.
- Who is the authorized official for Radiological Associates of Sacramento Medical Group?
- The authorized official listed on Radiological Associates of Sacramento Medical Group's NPPES record is Jonathan Breslau, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Radiological Associates of Sacramento Medical Group's NPI active?
- Yes — Radiological Associates of Sacramento Medical Group's NPI (1538140645) is active in the NPPES registry as of the last update on 2011-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.