O.n. Diagnostics, LLC
NPI 1306313648 · Physiological Laboratory · Berkeley, CA
Enrolled with Medicare as Part B Supplier - Independent Diagnostic Testing Facility (idtf) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
O.n. Diagnostics, LLC is a Physiological Laboratory organization in Berkeley, CA (NPI 1306313648).
Provider details
- NPI number
- 1306313648
- Entity type
- Organization
- Primary specialty
- Physiological LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- Shui Wong, Chief Operating Officer(510) 204-0688
Specialties & taxonomies
Laboratories
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% 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
- 2018-10-24
- Last updated
- 2024-01-02
- Certified
- 2024-01-01
Frequently asked questions
- What is O.n. Diagnostics, LLC's NPI number?
- O.n. Diagnostics, LLC's National Provider Identifier (NPI) is 1306313648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is O.n. Diagnostics, LLC?
- O.n. Diagnostics, LLC is classified in the NPPES registry as Physiological Laboratory (Laboratories).
- Where is O.n. Diagnostics, LLC located?
- O.n. Diagnostics, LLC's practice location on file with NPPES is 1936 University Ave Ste 280, Berkeley, CA 94704-1071.
- What is O.n. Diagnostics, LLC's phone number?
- The practice phone number listed in the NPPES registry for O.n. Diagnostics, LLC is (510) 204-0688.
- Does O.n. Diagnostics, LLC accept Medicare?
- O.n. Diagnostics, LLC 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 O.n. Diagnostics, LLC?
- The authorized official listed on O.n. Diagnostics, LLC's NPPES record is Shui Wong, Chief Operating Officer. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is O.n. Diagnostics, LLC's NPI active?
- Yes — O.n. Diagnostics, LLC's NPI (1306313648) is active in the NPPES registry as of the last update on 2024-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.