Seaside Longevity
Verified listingAbout Seaside Longevity
What is Seaside Longevity?
Seaside Longevity is a functional medicine practice in Cardiff-by-the-Sea, California, serving San Diego County. Its prescribers are Dr. Scott Gillin, MD, the founder and medical director, who is an IFM-trained physician, and Chip Nguyen, NP, an IFM-certified nurse practitioner who works on lab interpretation and protocol design. The practice is part of the Seaside Health Ecosystem, alongside Seaside Ketamine and RewindMD, which operate under their own names. In its own words: "Health care that looks deeper."
GLP-1 weight loss sits inside the Metabolic Makeover program, which includes a GLP-1 eligibility assessment, HbA1c and insulin work, and nutritionist-guided meal plans. Hormone care is bioidentical hormone therapy with personalized dosing and monitoring. Peptides appear in The Apotheosis Stack, the full-optimization program, which also includes IV NAD+, regenerative therapy and 5 nutritionist sessions. Testing covers over 110 biomarkers, and the first assessment runs 60 to 90 minutes. In its longevity plans, peptides and GLP-1 are used alongside hormones, nutrition and lifestyle coaching.
What does it cost?
It does not publish prices for any program, hormone care, GLP-1 care or peptide care. The first step is a free consultation, booked as a discovery call. Each program includes lab testing, a personalized protocol, nutritionist support, health coaching and ongoing follow-up. Payment plans are the only payment option it names. It does not say whether it accepts insurance, whether HSA or FSA cards can be used, or whether medication is included in any program fee.
What should you ask before you book?
Ask who writes the GLP-1 prescription and who manages your care afterward, since no prescriber is named for the weight loss program specifically. Ask whether the program fee includes medication, and if it does not, what the medication costs each month. Ask which GLP-1 medication is used and whether it is brand-name or compounded. Ask what the lab panel and each follow-up retest cost, and whether they are billed separately.
Ask whether insurance is accepted and whether HSA or FSA cards can be used. Ask whether telehealth visits are offered and what hours the office keeps. Since only the town is named, ask for a street address before you travel, and ask whether patients from outside Cardiff-by-the-Sea can be seen. Finally, ask how a payment plan is cancelled and whether any fee applies. The phone number is (858) 215-2606.
Who is it a good fit for?
This is a good fit if you want weight loss, hormone care and peptide work under one functional medicine practice, and you are ready to pay out of pocket or through a payment plan before a price is published. It is a weaker fit if you need the full cost before you book, or a named prescriber for the weight loss program before you pay.
Sources: seasidelongevity.com, seasidelongevity.com/glp-1-weight-loss-in-san-diego-a-smarter-medically-guided-approach-to-fat-loss, seasidelongevity.com/bioidentical-hormone-therapy-san-diego, seasidelongevity.com/peptides-glp1-longevity-san-diego, seasidelongevity.com/what-does-a-longevity-clinic-actually-do
Services Offered
What we confirmed
Read off Seaside Longevity’s own website on 2026-10-11. These are their words, not ours.
- ✓Medical weight loss — listed on their site as “At Seaside Longevity in Cardiff-by-the-Sea, we provide personalized GLP-1 programs designed to help you achieve sustainable fat loss while supporting long-term health and vitality.” source
- ✓Hormone therapy — listed on their site as “At Seaside Longevity , we use bioidentical hormone therapy as part of a comprehensive plan to help San Diego residents regain balance and live better every day.” source
- ✓Peptide therapy — listed on their site as “Peptides & hormone optimization” source
- ✓Longevity / anti-aging — listed on their site as “At Seaside Longevity, peptides and GLP-1 are used alongside hormones, nutrition, and lifestyle coaching to create holistic, personalized longevity plans” source
We have not yet collected published prices or prescriber credentials for this clinic. When we do, they will appear here with a link to the page they came from — or a note saying the clinic publishes none, which is itself worth knowing. Call them for a price in the meantime.