List of Diagnostic centers in California
California has approximately 404 Diagnostic centers as of April 13, 2026.
California, contributing around 8.0% of all 5,057 Diagnostic centers in United States, making it one of the largest and most important state-level markets for targeted outreach. Around 48.5% of Diagnostic centers in California have email addresses, 93.1% have phone numbers, and 46.8% include both — with 59.7% also having a website.
Businesses in this dataset are well-represented on social media: 157 have Facebook pages, 100 are on Instagram, 145 have LinkedIn profiles, 125 use X (formerly Twitter), 79 maintain YouTube channels. Over 181 Diagnostic centers have been rated by real users, making this dataset a strong fit for reputation management and review-based outreach. This dataset helps target Diagnostic centers across California efficiently.
| 404 Number of Diagnostic centers | |
| 196 Email addresses | |
| 376 Phone numbers | |
| 241 With Websites | |
| 145 LinkedIn Profiles |
| 157 Facebook Profiles | |
| 100 Instagram Handles | |
| 125 X Handles | |
| 79 YouTube Channels | |
| 189 Phone and Email |
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Data updated on April 13, 2026
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Find new clients and close more deals with the world s best business leads provider. You can download Diagnostic centers email and phone number lists for your sales teams. Here is a random sample of 0 records for you to look at the fields and the data that we provide.
| NAME | Address | City | State | Country | Phone | Website | Review Count | Review Scores | Google URL | Youtube | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
How many Diagnostic centers are there in the California?
Diagnostic centers in the California
Last updated: April 13, 2026
Approximately 48.5% of Diagnostic centers in California have email contacts, while 93.1% have phone numbers, enabling targeted state-level B2B campaigns.
Data last updated April 13, 2026
93.1%
376 Diagnostic centers in California with Phone Number
48.5%
196 Diagnostic centers in California with Email Address
46.8%
189 Diagnostic centers in California with Phone and Email
How to Use the List of Diagnostic centers in California
Explore various use cases for leveraging our contact database.
Territory Sales & Regional Prospecting
Phone coverage across California is solid — 93.1% of diagnostic centers have phone numbers in this dataset. Your team can start calling California-based prospects immediately, without spending time sourcing or validating contacts first.
Statewide Email Campaigns
48.5% of diagnostic centers in California have an email address on record. That's enough coverage to run full-state email sequences — from initial outreach to follow-up — hitting every major market and regional hub in a single campaign.
Multi-Channel Outreach Across California
46.8% of diagnostic centers in California have both phone and email on record. Rather than running separate lists per channel, your team can coordinate calls, emails, and follow-ups against the same contacts from one dataset.
Regional Ad Targeting
59.7% of diagnostic centers in California have a listed website — a strong signal of digital presence. Use those records to build lookalike audiences or upload the full list as a custom audience on Facebook, Google, or LinkedIn for precise, state-level ad targeting.
Pitching Services to California Businesses
66.1% of diagnostic centers in California are rated 4 stars or higher by real customers — a prime segment for reputation management tools, review platforms, and any service that helps businesses maintain or grow their online presence statewide.
California punches above its weight in the Diagnostic centers space — big enough to run serious statewide campaigns, focused enough to keep targeting precise.
List of Diagnostic centers in California with Social Media Accounts
38.9% on Facebook — making this state an ideal market for platform-specific outreach at regional scale
Explore Related Diagnostic centers by Location
Around 59.7% of Diagnostic centers in California have an active website, making this state an ideal target for regional digital marketing and website-driven campaigns.
Data last updated April 13, 2026
59.7%
241 Diagnostic centers in California that have a website
40.3%
163 Diagnostic centers in California that do not have a website
Download sales qualified leads of Diagnostic centers in the California
Download this data in CSV, Esri Shapefile, Excel, GeoJSON, or KML (Google Earth) file formats.
California has 267 highly-rated Diagnostic centers businesses, indicating a competitive regional market where customer experience drives visibility.
134
1-star rated Diagnostic centers in California
56
2-star rated Diagnostic centers in California
54
3-star rated Diagnostic centers in California
86
4-star rated Diagnostic centers in California
181
5-star rated Diagnostic centers in California
Frequently Asked Questions
Answers of the most common questions about our dataset
How many Diagnostic centers are there in California?
There are 404 Diagnostic centers in California as of the latest update. This makes California an active market for B2B outreach and lead generation in the Diagnostic centers industry.
How many Diagnostic centers in California have email addresses?
196 Diagnostic centers in California have verified email addresses — giving you a strong foundation for direct email outreach and drip campaigns.
How many Diagnostic centers in California have phone numbers?
376 Diagnostic centers in California include phone numbers. Of those, 189 also have email addresses, making them ideal for multi-channel outreach.
Which cities in California have the most Diagnostic centers businesses?
The concentration of Diagnostic centers varies across cities within California. The dataset includes a full cities-level breakdown so you can identify and prioritize the strongest markets for your campaigns.
Is this dataset suitable for statewide outreach to Diagnostic centers in California?
Absolutely. The dataset covers 404 Diagnostic centers businesses across California, giving you full statewide coverage for email, phone, and digital campaigns without geographic gaps.
What data fields are included for each Diagnostic centers in California?
Each record typically includes business name, address, phone number, email, website, social media handles (Facebook, Instagram, LinkedIn, X, YouTube), and customer ratings where available.
How can I access the complete Diagnostic centers list for California?
You can purchase and instantly download the full dataset from this page. A free sample is also available so you can review the data quality and structure before buying.
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