OrganizationActive
Wilshire Oncology Medical Group Inc
NPI 1912242025 · Specialist · Colton, CA
Wilshire Oncology Medical Group Inc is a Specialist organization in Colton, CA (NPI 1912242025).
Provider details
- NPI number
- 1912242025
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Linda Bosserman, President(909) 593-4333
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(78/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 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
400 N Pepper Ave
Colton, CA 92324-1801
Phone: (909) 580-2777
Fax: (909) 580-2522
Street-level locationGet directions
Mailing address
1502 Arrow Hwy
La Verne, CA 91750-5318
Registry dates
- Enumerated
- 2012-11-29
- Last updated
- 2012-11-29
Frequently asked questions
- What is Wilshire Oncology Medical Group Inc's NPI number?
- Wilshire Oncology Medical Group Inc's National Provider Identifier (NPI) is 1912242025, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Wilshire Oncology Medical Group Inc?
- Wilshire Oncology Medical Group Inc is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is Wilshire Oncology Medical Group Inc located?
- Wilshire Oncology Medical Group Inc's practice location on file with NPPES is 400 N Pepper Ave, Colton, CA 92324-1801.
- What is Wilshire Oncology Medical Group Inc's phone number?
- The practice phone number listed in the NPPES registry for Wilshire Oncology Medical Group Inc is (909) 580-2777.
- Who is the authorized official for Wilshire Oncology Medical Group Inc?
- The authorized official listed on Wilshire Oncology Medical Group Inc's NPPES record is Linda Bosserman, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Wilshire Oncology Medical Group Inc's NPI active?
- Yes — Wilshire Oncology Medical Group Inc's NPI (1912242025) is active in the NPPES registry as of the last update on 2012-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.