U.S. Healthworks Medical Group, PC
NPI 1700256864 · Occupational Medicine Clinic/Center · Chino, CA
U.S. Healthworks Medical Group, PC is a Occupational Medicine Clinic/Center organization in Chino, CA (NPI 1700256864).
Provider details
- NPI number
- 1700256864
- Entity type
- Organization
- Primary specialty
- Occupational Medicine Clinic/CenterAmbulatory Health Care Facilities
- Parent organization
- U.S. Healthworks Medical Group, PC
- Organization subpart
- Yes
- Authorized official
- Joseph Mallas, President & Chief Operating Officer(661) 678-2600
Specialties & taxonomies
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
- 2015-10-01
- Last updated
- 2015-10-01
Frequently asked questions
- What is U.S. Healthworks Medical Group, PC's NPI number?
- U.S. Healthworks Medical Group, PC's National Provider Identifier (NPI) is 1700256864, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is U.S. Healthworks Medical Group, PC?
- U.S. Healthworks Medical Group, PC is classified in the NPPES registry as Occupational Medicine Clinic/Center (Ambulatory Health Care Facilities).
- Where is U.S. Healthworks Medical Group, PC located?
- U.S. Healthworks Medical Group, PC's practice location on file with NPPES is 15302 El Prado Rd, Chino, CA 91710-7659.
- What is U.S. Healthworks Medical Group, PC's phone number?
- The practice phone number listed in the NPPES registry for U.S. Healthworks Medical Group, PC is (909) 393-7222.
- Who is the authorized official for U.S. Healthworks Medical Group, PC?
- The authorized official listed on U.S. Healthworks Medical Group, PC's NPPES record is Joseph Mallas, President & Chief Operating Officer. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is U.S. Healthworks Medical Group, PC's NPI active?
- Yes — U.S. Healthworks Medical Group, PC's NPI (1700256864) is active in the NPPES registry as of the last update on 2015-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.