HARRIS HISTOLOGY SERVICES
NPI 1003810409
Clinical Medical Laboratory in Tustin, CA

Active since June 13, 2005CLIA 05D2341631 · Certificate of Compliance
630 S B ST, TUSTIN, CA 92780(714) 832-4041(714) 832-4127 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Harris Histology Services NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

HARRIS HISTOLOGY SERVICES (NPI 1003810409) is a healthcare organization registered as a clinical medical laboratory in Tustin, California and active in the NPI registry since June 2005. The organization holds a CLIA Certificate of Compliance certificate valid through April 5, 2028 and lists Rick Harris, Owner/chief Histotech, as its authorized official.

NPPES Registry Identity

NPI1003810409
Entity TypeOrganization
Primary Taxonomy291U00000X
Legal Business NameHARRIS HISTOLOGY SERVICES
Location Address630 S B STTustin, CA 92780-4318
Mailing Address630 S B StTustin, CA 92780-4318 · (714) 832-4041 · Fax (714) 832-4127
Fax(714) 832-4127
Organization SubpartNo
Authorized OfficialRick HarrisOwner/chief Histotech · (714) 832-4041
Enumeration DateJune 13, 2005
Last NPPES UpdateAugust 22, 2020
NPI 1003810409 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyClinical Medical LaboratoryLaboratories
Taxonomy Code291U00000X
License Licensed in CA · HT-009490
Definition
(1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology.
630 S B ST, Tustin, CA 92780

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Compliance 05D2341631

Harris Histology Services, LLC · Tustin, CA
Active · expires Apr 5, 2028
CLIA Number05D2341631
Laboratory TypeIndependent
Certificate Effective DateApril 6, 2026
Certificate Expiration DateApril 5, 2028
Laboratory DirectorMichelle C. Hure
Laboratory Phone(714) 832-4041
Laboratory LocationHarris Histology Services, LLC2852 Walnut Ave Unit G, Tustin, CA 92780
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory after an inspection that finds the laboratory to be in compliance with all applicable CLIA requirements.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Technician, Other
630 S B ST
TUSTIN, CA 92780
Specialist/Technologist, Pathology (Histology)
630 S B ST
TUSTIN, CA 92780

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Harris Histology Services's NPI number?

The NPI number for Harris Histology Services is 1003810409. It was assigned to this organization in the NPPES registry on June 13, 2005.

Where is Harris Histology Services located?

Harris Histology Services is located at 630 S B St, Tustin, CA 92780. The listed phone number is (714) 832-4041.

What is Harris Histology Services's specialty?

The primary specialty registered for this NPI is Clinical Medical Laboratory with taxonomy code 291U00000X.

Does Harris Histology Services hold a CLIA laboratory certificate?

Yes. A Certificate of Compliance (number 05D2341631) is associated with this NPI, valid through April 5, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Harris Histology Services was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.