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Thomas Grigsby, BS
NPI 1558435016 · Case Manager/Care Coordinator · Fullerton, CA
Thomas Grigsby, BS is a Case Manager/Care Coordinator provider in Fullerton, CA (NPI 1558435016).
Provider details
- NPI number
- 1558435016
- Entity type
- Individual
- Primary specialty
- Case Manager/Care CoordinatorOther Service Providers
- Credential
- BS
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(84/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
801 E Chapman Ave
Fullerton, CA 92831-3839
Phone: (714) 680-9000
Fax: (714) 680-9007
Street-level locationGet directions
Mailing address
7520 E Woodsboro Ave
Anaheim, CA 92807-2429
Registry dates
- Enumerated
- 2006-11-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Thomas Grigsby's NPI number?
- Thomas Grigsby's National Provider Identifier (NPI) is 1558435016, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Grigsby's specialty?
- Thomas Grigsby is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).
- Where is Thomas Grigsby located?
- Thomas Grigsby's practice location on file with NPPES is 801 E Chapman Ave, Fullerton, CA 92831-3839.
- What is Thomas Grigsby's phone number?
- The practice phone number listed in the NPPES registry for Thomas Grigsby is (714) 680-9000.
- Is Thomas Grigsby's NPI active?
- Yes — Thomas Grigsby's NPI (1558435016) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.