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Doctors & clinics in Fullerton, CA

320 doctors & clinics listed in Fullerton, California. 264 with a phone number and 266 with a website.

Fullerton accounts for 0% of the doctors & clinics listed in California and ranks #58 among California cities for doctors & clinics.

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Quick answer

Fullerton, CA has 320 doctors & clinics listed on USA Business Search. 264 list a phone number and 266 list a website. The most listings are in ZIP codes 92835, 92831, 92832.

Updated October 2026
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Accredited Dermatology Medical Clinic Inc

301 W Bastanchury Rd Ste 245, Fullerton, CA 92835 · Claim or fix

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How to choose a doctor in Fullerton

  • Call your insurance to confirm the provider is in network before your first visit.
  • Ask about telehealth options and how to reach the office after hours.
  • Ask how long it usually takes to get a new-patient appointment.

Check the license: Medical Board of California.

Medical weight loss and GLP-1 care in Fullerton: what to ask

  • GLP-1 medicines such as semaglutide and tirzepatide are prescription-only. A licensed prescriber should review your health history and any labs.
  • Ask whether the medication is an FDA-approved brand or a compounded version, and which pharmacy fills it.
  • Ask for the full monthly cost in writing: visits, medication, shipping and follow-up.
  • Ask how side effects are monitored and how often you will check in with a clinician or dietitian.

See the medical weight loss guide for providers by state.

Common questions

How many doctors & clinics are listed in Fullerton, California?

USA Business Search shows 320 doctors & clinics in Fullerton. 264 list a phone number and 266 list a website.

Which ZIP codes do these listings cover?

They include ZIP codes 92835, 92831, 92832, 92833.

How do I choose a doctor in Fullerton?

Call your insurance to confirm the provider is in network before your first visit. Ask about telehealth options and how to reach the office after hours. Check the license with the Medical Board of California.

How do doctors & clinics in Fullerton compare with the rest of California?

Fullerton has 0% of the 79,064 doctors & clinics listed in California, which ranks #58 among California cities for this category.

How do I add or fix a listing?

Listings are free. Use Add your business, or the Claim or fix link on any listing.

Do I need a prescription for GLP-1 weight loss in Fullerton?

Yes. Semaglutide and tirzepatide are prescription medications, and a licensed provider decides whether they are appropriate for you. Telehealth programs such as Elevation Health (featured) review your intake from home.

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