Islandview Hematology Oncology Med Grp Inc.
NPI 1174843239 · Internal Medicine Physician · Oxnard, CA
Islandview Hematology Oncology Med Grp Inc. is a Internal Medicine Physician organization in Oxnard, CA (NPI 1174843239).
Provider details
- NPI number
- 1174843239
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Ju;ia Valdivia, Office Manager(805) 981-0808
- License
- G308702 (CA)
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
16 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
Other names (DBA / former)
- Doing business as
- Stephen V. Rigberg
Registry dates
- Enumerated
- 2010-06-10
- Last updated
- 2010-06-10
Frequently asked questions
- What is Islandview Hematology Oncology Med Grp Inc.'s NPI number?
- Islandview Hematology Oncology Med Grp Inc.'s National Provider Identifier (NPI) is 1174843239, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Islandview Hematology Oncology Med Grp Inc.?
- Islandview Hematology Oncology Med Grp Inc. is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Islandview Hematology Oncology Med Grp Inc. located?
- Islandview Hematology Oncology Med Grp Inc.'s practice location on file with NPPES is 1901 Solar Dr, Oxnard, CA 93036-2641.
- What is Islandview Hematology Oncology Med Grp Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Islandview Hematology Oncology Med Grp Inc. is (805) 981-0808.
- Who is the authorized official for Islandview Hematology Oncology Med Grp Inc.?
- The authorized official listed on Islandview Hematology Oncology Med Grp Inc.'s NPPES record is Ju;ia Valdivia, Office Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Islandview Hematology Oncology Med Grp Inc.'s NPI active?
- Yes — Islandview Hematology Oncology Med Grp Inc.'s NPI (1174843239) is active in the NPPES registry as of the last update on 2010-06-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.