Fabian Guillen, COTA
NPI 1912705815 · Occupational Therapy Assistant · Whittier, CA
Fabian Guillen, COTA is a Occupational Therapy Assistant provider in Whittier, CA (NPI 1912705815).
Provider details
- NPI number
- 1912705815
- Entity type
- Individual
- Primary specialty
- Occupational Therapy AssistantRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- COTA
- Sex
- Male
- Sole proprietor
- No
- License
- OTA6444 (CA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
- 2025-03-05
- Last updated
- 2025-03-05
- Certified
- 2025-03-05
Frequently asked questions
- What is Fabian Guillen's NPI number?
- Fabian Guillen's National Provider Identifier (NPI) is 1912705815, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Fabian Guillen's specialty?
- Fabian Guillen is listed in the NPPES registry with a primary specialty of Occupational Therapy Assistant (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Fabian Guillen located?
- Fabian Guillen's practice location on file with NPPES is 12411 Slauson Ave Ste G, Whittier, CA 90606-2835.
- What is Fabian Guillen's phone number?
- The practice phone number listed in the NPPES registry for Fabian Guillen is (562) 693-5449.
- Is Fabian Guillen's NPI active?
- Yes — Fabian Guillen's NPI (1912705815) is active in the NPPES registry as of the last update on 2025-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.