IndividualActive
Summer Mercier
NPI 1245004621 · Speech-Language Pathologist · Upland, CA
Summer Mercier is a Speech-Language Pathologist provider in Upland, CA (NPI 1245004621).
Provider details
- NPI number
- 1245004621
- Entity type
- Individual
- Primary specialty
- Speech-Language PathologistSpeech, Language and Hearing Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 25722 (CA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
Established profile(57/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 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
222 N Mountain Ave Ste 109a
Upland, CA 91786-5715
Phone: (909) 610-9151
Street-level locationGet directions
Mailing address
604 N Angeleno Ave
Azusa, CA 91702-2903
Registry dates
- Enumerated
- 2023-11-07
- Last updated
- 2023-11-07
- Certified
- 2023-11-07
Frequently asked questions
- What is Summer Mercier's NPI number?
- Summer Mercier's National Provider Identifier (NPI) is 1245004621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Summer Mercier's specialty?
- Summer Mercier is listed in the NPPES registry with a primary specialty of Speech-Language Pathologist (Speech, Language and Hearing Service Providers).
- Where is Summer Mercier located?
- Summer Mercier's practice location on file with NPPES is 222 N Mountain Ave Ste 109a, Upland, CA 91786-5715.
- What is Summer Mercier's phone number?
- The practice phone number listed in the NPPES registry for Summer Mercier is (909) 610-9151.
- Is Summer Mercier's NPI active?
- Yes — Summer Mercier's NPI (1245004621) is active in the NPPES registry as of the last update on 2023-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.