OrganizationActive
O-K Diagnostics LLC
NPI 1427586726 · Physiological Laboratory · Staten Island, NY
O-K Diagnostics LLC is a Physiological Laboratory organization in Staten Island, NY (NPI 1427586726).
Provider details
- NPI number
- 1427586726
- Entity type
- Organization
- Primary specialty
- Physiological LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- Darya Feklistova, President/Owner(917) 913-0240
Specialties & taxonomies
Laboratories
Profile Score
Established profile(70/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
9 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
4176 Victory Blvd
Staten Island, NY 10314-6739
Phone: (718) 698-3030
Fax: (718) 494-1095
Street-level locationGet directions
Mailing address
4176 Victory Blvd
Staten Island, NY 10314-6739
Registry dates
- Enumerated
- 2017-05-31
- Last updated
- 2022-07-21
Frequently asked questions
- What is O-K Diagnostics LLC's NPI number?
- O-K Diagnostics LLC's National Provider Identifier (NPI) is 1427586726, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is O-K Diagnostics LLC?
- O-K Diagnostics LLC is classified in the NPPES registry as Physiological Laboratory (Laboratories).
- Where is O-K Diagnostics LLC located?
- O-K Diagnostics LLC's practice location on file with NPPES is 4176 Victory Blvd, Staten Island, NY 10314-6739.
- What is O-K Diagnostics LLC's phone number?
- The practice phone number listed in the NPPES registry for O-K Diagnostics LLC is (718) 698-3030.
- Who is the authorized official for O-K Diagnostics LLC?
- The authorized official listed on O-K Diagnostics LLC's NPPES record is Darya Feklistova, President/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is O-K Diagnostics LLC's NPI active?
- Yes — O-K Diagnostics LLC's NPI (1427586726) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.