Gemini Diagnostics Inc
NPI 1104127174 · Clinical Medical Laboratory · Westlake Village, CA
Enrolled with Medicare as Part B Supplier - Independent Clinical Laboratory · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gemini Diagnostics Inc is a Clinical Medical Laboratory organization in Westlake Village, CA (NPI 1104127174).
Provider details
- NPI number
- 1104127174
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- Joel Chan, President(805) 496-3838
Specialties & taxonomies
Laboratories
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
15 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
749 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 287 | $28 |
| Flow Cytometry Technique for Dna Or Cell Analysis, 16 Or More Markers88189 | 240 | $84 |
| Microscopic Genetic Analysis of Tumor, Manual88360 | 74 | $41 |
| Surgical Pathology Consultation and Report on Referred Material Requiring Preparation of Slides88323 | 66 | $88 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 56 | $35 |
| Flow Cytometry Technique for Dna Or Cell Analysis, 9 to 15 Markers88188 | 15 | $63 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-11-08
- Last updated
- 2015-06-03
Frequently asked questions
- What is Gemini Diagnostics Inc's NPI number?
- Gemini Diagnostics Inc's National Provider Identifier (NPI) is 1104127174, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Gemini Diagnostics Inc?
- Gemini Diagnostics Inc is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Gemini Diagnostics Inc located?
- Gemini Diagnostics Inc's practice location on file with NPPES is 756 Lakefield Rd, Westlake Village, CA 91361.
- What is Gemini Diagnostics Inc's phone number?
- The practice phone number listed in the NPPES registry for Gemini Diagnostics Inc is (805) 496-3838.
- Does Gemini Diagnostics Inc accept Medicare?
- Gemini Diagnostics Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Gemini Diagnostics Inc?
- The authorized official listed on Gemini Diagnostics Inc's NPPES record is Joel Chan, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Gemini Diagnostics Inc's NPI active?
- Yes — Gemini Diagnostics Inc's NPI (1104127174) is active in the NPPES registry as of the last update on 2015-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.