Ella Marie Guerrero, HIS
NPI 1205402120 · Hearing Instrument Specialist · Oakland, CA
Ella Marie Guerrero, HIS is a Hearing Instrument Specialist provider in Oakland, CA (NPI 1205402120).
Provider details
- NPI number
- 1205402120
- Entity type
- Individual
- Primary specialty
- Hearing Instrument SpecialistSpeech, Language and Hearing Service Providers
- Credential
- HIS
- Sex
- Female
- Sole proprietor
- No
- License
- 9000 (CA)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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
- 2021-06-01
- Last updated
- 2025-01-29
- Certified
- 2025-01-29
Frequently asked questions
- What is Ella Marie Guerrero's NPI number?
- Ella Marie Guerrero's National Provider Identifier (NPI) is 1205402120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ella Marie Guerrero's specialty?
- Ella Marie Guerrero is listed in the NPPES registry with a primary specialty of Hearing Instrument Specialist (Speech, Language and Hearing Service Providers).
- Where is Ella Marie Guerrero located?
- Ella Marie Guerrero's practice location on file with NPPES is 400 30th St Ste 101, Oakland, CA 94609-3316.
- What is Ella Marie Guerrero's phone number?
- The practice phone number listed in the NPPES registry for Ella Marie Guerrero is (510) 832-4056.
- Is Ella Marie Guerrero's NPI active?
- Yes — Ella Marie Guerrero's NPI (1205402120) is active in the NPPES registry as of the last update on 2025-01-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.