Norcal Pathology Lab
NPI 1588949127 · Clinical Medical Laboratory · Fremont, CA
Enrolled with Medicare as Part B Supplier - Independent Clinical Laboratory · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Norcal Pathology Lab is a Clinical Medical Laboratory organization in Fremont, CA (NPI 1588949127).
Provider details
- NPI number
- 1588949127
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Organization subpart
- No
- Authorized official
- John Mazoros, Administrator(510) 456-4650
Specialties & taxonomies
Laboratories
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
14 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
2,168 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 | 1,711 | $91 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 201 | $150 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 86 | $139 |
| Microscopic Genetic Analysis of Tumor, Manual88360 | 80 | $158 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 48 | $119 |
| Pathology Examination of Tissue Using a Microscope, Moderately Low Complexity88304 | 23 | $57 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2011-10-14
- Last updated
- 2011-10-14
Frequently asked questions
- What is Norcal Pathology Lab's NPI number?
- Norcal Pathology Lab's National Provider Identifier (NPI) is 1588949127, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Norcal Pathology Lab?
- Norcal Pathology Lab is classified in the NPPES registry as Clinical Medical Laboratory (Laboratories).
- Where is Norcal Pathology Lab located?
- Norcal Pathology Lab's practice location on file with NPPES is 39350 Civic Center Drive # 412, Fremont, CA 94538.
- What is Norcal Pathology Lab's phone number?
- The practice phone number listed in the NPPES registry for Norcal Pathology Lab is (510) 456-4650.
- Does Norcal Pathology Lab accept Medicare?
- Norcal Pathology Lab 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 Norcal Pathology Lab?
- The authorized official listed on Norcal Pathology Lab's NPPES record is John Mazoros, Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Norcal Pathology Lab's NPI active?
- Yes — Norcal Pathology Lab's NPI (1588949127) is active in the NPPES registry as of the last update on 2011-10-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.