Karl Guy, RN
NPI 1164916532 · Psychiatric/Mental Health Registered Nurse · Berkeley, CA
Karl Guy, RN is a Psychiatric/Mental Health Registered Nurse provider in Berkeley, CA (NPI 1164916532).
Provider details
- NPI number
- 1164916532
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Nursing Service Providers
- Health Educator174H00000X
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2018-06-19
- Last updated
- 2020-02-12
- Certified
- 2020-02-12
Frequently asked questions
- What is Karl Guy's NPI number?
- Karl Guy's National Provider Identifier (NPI) is 1164916532, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karl Guy's specialty?
- Karl Guy is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is Karl Guy located?
- Karl Guy's practice location on file with NPPES is 1890 Alcatraz Ave, Berkeley, CA 94703-2715.
- What is Karl Guy's phone number?
- The practice phone number listed in the NPPES registry for Karl Guy is (510) 981-5290.
- Is Karl Guy's NPI active?
- Yes — Karl Guy's NPI (1164916532) is active in the NPPES registry as of the last update on 2020-02-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.