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Darren Tan
NPI 1063690444 · Case Manager/Care Coordinator · Santa Ana, CA
Darren Tan is a Case Manager/Care Coordinator provider in Santa Ana, CA (NPI 1063690444).
Provider details
- NPI number
- 1063690444
- Entity type
- Individual
- Primary specialty
- Case Manager/Care CoordinatorOther Service Providers
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Other Service Providers
Profile Score
Detailed profile(81/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
1300 S Grand Ave Ste C
Santa Ana, CA 92705-4434
Phone: (714) 796-8378
Street-level locationGet directions
Mailing address
Po Box 11526
Santa Ana, CA 92711-1526
Registry dates
- Enumerated
- 2008-02-07
- Last updated
- 2008-02-07
Frequently asked questions
- What is Darren Tan's NPI number?
- Darren Tan's National Provider Identifier (NPI) is 1063690444, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Darren Tan's specialty?
- Darren Tan is listed in the NPPES registry with a primary specialty of Case Manager/Care Coordinator (Other Service Providers).
- Where is Darren Tan located?
- Darren Tan's practice location on file with NPPES is 1300 S Grand Ave Ste C, Santa Ana, CA 92705-4434.
- What is Darren Tan's phone number?
- The practice phone number listed in the NPPES registry for Darren Tan is (714) 796-8378.
- Is Darren Tan's NPI active?
- Yes — Darren Tan's NPI (1063690444) is active in the NPPES registry as of the last update on 2008-02-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.