Harris Histology Services LLC
NPI 1831579200 · Histology Specialist/Technologist · Tustin, CA
Enrolled with Medicare as Part B Supplier - Other · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Harris Histology Services LLC is a Histology Specialist/Technologist organization in Tustin, CA (NPI 1831579200).
Provider details
- NPI number
- 1831579200
- Entity type
- Organization
- Primary specialty
- Histology Specialist/TechnologistTechnologists, Technicians & Other Technical Service Providers
- Organization subpart
- No
- Authorized official
- Nicolas Harris, Manager/Member(714) 514-6425
Specialties & taxonomies
Technologists, Technicians & Other Technical Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
11 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
16,475 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 16,455 | $42 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 20 | $102 |
Typical Medicare-allowed amounts for these services range $42–$102 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-06-01
- Last updated
- 2015-06-01
Frequently asked questions
- What is Harris Histology Services LLC's NPI number?
- Harris Histology Services LLC's National Provider Identifier (NPI) is 1831579200, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Harris Histology Services LLC?
- Harris Histology Services LLC is classified in the NPPES registry as Histology Specialist/Technologist (Technologists, Technicians & Other Technical Service Providers).
- Where is Harris Histology Services LLC located?
- Harris Histology Services LLC's practice location on file with NPPES is 630 S B St, Tustin, CA 92780-4318.
- What is Harris Histology Services LLC's phone number?
- The practice phone number listed in the NPPES registry for Harris Histology Services LLC is (714) 832-4041.
- Does Harris Histology Services LLC accept Medicare?
- Harris Histology Services 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 Harris Histology Services LLC?
- The authorized official listed on Harris Histology Services LLC's NPPES record is Nicolas Harris, Manager/Member. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Harris Histology Services LLC's NPI active?
- Yes — Harris Histology Services LLC's NPI (1831579200) is active in the NPPES registry as of the last update on 2015-06-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.