Whittier Oncology Medical Clinic, Inc.
NPI 1427101229 · Radiation Oncology Clinic/Center · Whittier, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Whittier Oncology Medical Clinic, Inc. is a Radiation Oncology Clinic/Center organization in Whittier, CA (NPI 1427101229).
Provider details
- NPI number
- 1427101229
- Entity type
- Organization
- Primary specialty
- Radiation Oncology Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Kevin Diao, President(562) 696-5964
- License
- G56388 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2007-01-18
- Last updated
- 2026-02-24
- Certified
- 2026-02-24
Frequently asked questions
- What is Whittier Oncology Medical Clinic, Inc.'s NPI number?
- Whittier Oncology Medical Clinic, Inc.'s National Provider Identifier (NPI) is 1427101229, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Whittier Oncology Medical Clinic, Inc.?
- Whittier Oncology Medical Clinic, Inc. is classified in the NPPES registry as Radiation Oncology Clinic/Center (Ambulatory Health Care Facilities).
- Where is Whittier Oncology Medical Clinic, Inc. located?
- Whittier Oncology Medical Clinic, Inc.'s practice location on file with NPPES is 12393 Washington Blvd, Whittier, CA 90606-2502.
- What is Whittier Oncology Medical Clinic, Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Whittier Oncology Medical Clinic, Inc. is (562) 696-5964.
- Does Whittier Oncology Medical Clinic, Inc. accept Medicare?
- Whittier Oncology Medical Clinic, Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Whittier Oncology Medical Clinic, Inc.?
- The authorized official listed on Whittier Oncology Medical Clinic, Inc.'s NPPES record is Kevin Diao, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Whittier Oncology Medical Clinic, Inc.'s NPI active?
- Yes — Whittier Oncology Medical Clinic, Inc.'s NPI (1427101229) is active in the NPPES registry as of the last update on 2026-02-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.