Robert Guillen, RADT
NPI 1821726779 · Addiction (Substance Use Disorder) Counselor · San Jose, CA
Robert Guillen, RADT is a Addiction (Substance Use Disorder) Counselor provider in San Jose, CA (NPI 1821726779).
Provider details
- NPI number
- 1821726779
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- RADT
- Sex
- Male
- Sole proprietor
- No
- License
- CI49050925 (CA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
- 2022-08-09
- Last updated
- 2025-10-01
- Certified
- 2025-10-01
Frequently asked questions
- What is Robert Guillen's NPI number?
- Robert Guillen's National Provider Identifier (NPI) is 1821726779, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Guillen's specialty?
- Robert Guillen is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Robert Guillen located?
- Robert Guillen's practice location on file with NPPES is 298 Bernal Rd, San Jose, CA 95119-1809.
- What is Robert Guillen's phone number?
- The practice phone number listed in the NPPES registry for Robert Guillen is (408) 780-0755.
- Is Robert Guillen's NPI active?
- Yes — Robert Guillen's NPI (1821726779) is active in the NPPES registry as of the last update on 2025-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.