OrganizationActive
First Call Medical Group
NPI 1881991040 · Specialist · Riverside, CA
First Call Medical Group is a Specialist organization in Riverside, CA (NPI 1881991040).
Provider details
- NPI number
- 1881991040
- Entity type
- Organization
- Primary specialty
- SpecialistOther Service Providers
- Organization subpart
- No
- Authorized official
- Darlene Tiller, Chief Executive Officer(877) 357-4777
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(82/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
3660 Park Sierra Dr
101
Riverside, CA 92505-3081
Phone: (877) 357-4777
Fax: (951) 351-4291
Street-level locationGet directions
Mailing address
Po Box 70528
Riverside, CA 92513-0528
Registry dates
- Enumerated
- 2011-02-23
- Last updated
- 2011-02-23
Frequently asked questions
- What is First Call Medical Group's NPI number?
- First Call Medical Group's National Provider Identifier (NPI) is 1881991040, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is First Call Medical Group?
- First Call Medical Group is classified in the NPPES registry as Specialist (Other Service Providers).
- Where is First Call Medical Group located?
- First Call Medical Group's practice location on file with NPPES is 3660 Park Sierra Dr, Riverside, CA 92505-3081.
- What is First Call Medical Group's phone number?
- The practice phone number listed in the NPPES registry for First Call Medical Group is (877) 357-4777.
- Who is the authorized official for First Call Medical Group?
- The authorized official listed on First Call Medical Group's NPPES record is Darlene Tiller, Chief Executive Officer. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is First Call Medical Group's NPI active?
- Yes — First Call Medical Group's NPI (1881991040) is active in the NPPES registry as of the last update on 2011-02-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.