OrganizationActive
Brian Leberthon
NPI 1568707750 · Oncology Clinic/Center · West Covina, CA
Brian Leberthon is a Oncology Clinic/Center organization in West Covina, CA (NPI 1568707750).
Provider details
- NPI number
- 1568707750
- Entity type
- Organization
- Primary specialty
- Oncology Clinic/CenterAmbulatory Health Care Facilities
- Organization subpart
- No
- Authorized official
- Penny Mcgowen, Manager(626) 338-9560
- License
- 470405 (CA)
Specialties & taxonomies
Ambulatory Health Care Facilities
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
1135 S Sunset Ave
207
West Covina, CA 91790-3937
Phone: (626) 338-9560
Street-level locationGet directions
Mailing address
1135 S Sunset Ave
West Covina, CA 91790-3937
Registry dates
- Enumerated
- 2012-11-29
- Last updated
- 2012-11-29
Frequently asked questions
- What is Brian Leberthon's NPI number?
- Brian Leberthon's National Provider Identifier (NPI) is 1568707750, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Brian Leberthon?
- Brian Leberthon is classified in the NPPES registry as Oncology Clinic/Center (Ambulatory Health Care Facilities).
- Where is Brian Leberthon located?
- Brian Leberthon's practice location on file with NPPES is 1135 S Sunset Ave, West Covina, CA 91790-3937.
- What is Brian Leberthon's phone number?
- The practice phone number listed in the NPPES registry for Brian Leberthon is (626) 338-9560.
- Who is the authorized official for Brian Leberthon?
- The authorized official listed on Brian Leberthon's NPPES record is Penny Mcgowen, Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Brian Leberthon's NPI active?
- Yes — Brian Leberthon's NPI (1568707750) 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.