Gregory Guillermo, ICCS, ICADAC II
NPI 1801142831 · Mental Health Counselor · San Diego, CA
Gregory Guillermo, ICCS, ICADAC II is a Mental Health Counselor provider in San Diego, CA (NPI 1801142831).
Provider details
- NPI number
- 1801142831
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- ICCS, ICADAC II
- Sex
- Male
- Sole proprietor
- No
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
13 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2012-07-27
- Last updated
- 2012-08-10
Frequently asked questions
- What is Gregory Guillermo's NPI number?
- Gregory Guillermo's National Provider Identifier (NPI) is 1801142831, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Guillermo's specialty?
- Gregory Guillermo is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Gregory Guillermo located?
- Gregory Guillermo's practice location on file with NPPES is 892 27th St, San Diego, CA 92154-1444.
- What is Gregory Guillermo's phone number?
- The practice phone number listed in the NPPES registry for Gregory Guillermo is (619) 575-4687.
- Is Gregory Guillermo's NPI active?
- Yes — Gregory Guillermo's NPI (1801142831) is active in the NPPES registry as of the last update on 2012-08-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.