OrganizationActive
Landmark Diagnostics, LLC
NPI 1699172866 · Clinical Medical Laboratory · Houston, TX
Landmark Diagnostics, LLC is a Clinical Medical Laboratory organization in Houston, TX (NPI 1699172866).
Provider details
- NPI number
- 1699172866
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- Taylor Stewart, President(479) 845-6386
Specialties & taxonomies
Laboratories
Profile Score
Detailed profile(75/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 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
9350 Kirby Dr
Suite 150
Houston, TX 77054-2527
Phone: (888) 549-8670
Street-level locationGet directions
Mailing address
5204 W Village Pkwy Ste 11
Rogers, AR 72758-8146
Registry dates
- Enumerated
- 2014-12-03
- Last updated
- 2019-03-19
Frequently asked questions
- What is Landmark Diagnostics, LLC's NPI number?
- Landmark Diagnostics, LLC's National Provider Identifier (NPI) is 1699172866, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Landmark Diagnostics, LLC?
- Landmark Diagnostics, LLC is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Landmark Diagnostics, LLC located?
- Landmark Diagnostics, LLC's practice location on file with NPPES is 9350 Kirby Dr, Houston, TX 77054-2527.
- What is Landmark Diagnostics, LLC's phone number?
- The practice phone number listed in the NPPES registry for Landmark Diagnostics, LLC is (888) 549-8670.
- Who is the authorized official for Landmark Diagnostics, LLC?
- The authorized official listed on Landmark Diagnostics, LLC's NPPES record is Taylor Stewart, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Landmark Diagnostics, LLC's NPI active?
- Yes — Landmark Diagnostics, LLC's NPI (1699172866) is active in the NPPES registry as of the last update on 2019-03-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.