IndividualActive
Karen Holbrook, MS, CGC
NPI 1386924223 · Genetic Counselor (M.S.) · San Jose, CA
Karen Holbrook, MS, CGC is a Genetic Counselor (M.S.) provider in San Jose, CA (NPI 1386924223).
Provider details
- NPI number
- 1386924223
- Entity type
- Individual
- Primary specialty
- Genetic Counselor (M.S.)Other Service Providers
- Credential
- MS, CGC
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Other Service Providers
Profile Score
Established profile(74/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 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
5755 Cottle Rd
Bldg 1
San Jose, CA 95123-3640
Phone: (408) 972-3300
Street-level locationGet directions
Mailing address
2542 Sweetbriar Dr
Campbell, CA 95008-4923
Registry dates
- Enumerated
- 2011-08-24
- Last updated
- 2011-08-24
Frequently asked questions
- What is Karen Holbrook's NPI number?
- Karen Holbrook's National Provider Identifier (NPI) is 1386924223, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Holbrook's specialty?
- Karen Holbrook is listed in the NPPES registry with a primary specialty of Genetic Counselor (M.S.) (Other Service Providers).
- Where is Karen Holbrook located?
- Karen Holbrook's practice location on file with NPPES is 5755 Cottle Rd, San Jose, CA 95123-3640.
- What is Karen Holbrook's phone number?
- The practice phone number listed in the NPPES registry for Karen Holbrook is (408) 972-3300.
- Is Karen Holbrook's NPI active?
- Yes — Karen Holbrook's NPI (1386924223) is active in the NPPES registry as of the last update on 2011-08-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.