Institute for Functional Health & Nutrition
Verified listingAbout Institute for Functional Health & Nutrition
What is Institute for Functional Health & Nutrition?
Institute for Functional Health & Nutrition is an endocrinology practice at 25078 Peachland Ave Suite-A, Newhall, CA 91321. Its phone number is 661 253-4420. The clinic describes itself as specializing in adult and pediatric endocrinology, and Google lists it as an endocrinologist, rated 5 from 13 reviews. The only prescriber the clinic names is Dolores Sepulveda-Rangel, NP, CDCES, CPN, Ed. She has over 15 years' experience in endocrinology and holds board certifications in pediatrics, functional medicine, plant-based nutrition, public health, and as a diabetes care specialist.
Its services are male and female hormone replacement therapy, which the clinic describes as aimed at restoring balance and vitality, and weight loss care with oral GLP-1 medications and injections, offered to patients of all ages. The clinic also offers nutrition counseling, diabetes care, placement of continuous glucose monitors, and treatment for thyroid disorders. It does not list peptide therapy or longevity programs.
This listing is for its Santa Clarita office at 25078 suite A Peachland Ave.
What does it cost?
It does not publish prices. There is no consultation fee, no monthly price for weight loss or hormone care, and no statement on whether GLP-1 medication is included in any cost. The clinic is cash pay only. In its words: "Our practice does not contract with medical insurance companies." Every visit is paid out of pocket.
The home page lists a September/October offer of 10% off lab work to assess vitamin D levels. It does not say when that offer ends. The office will provide a detailed super-bill on request for possible insurance reimbursement. A super-bill is a receipt you can submit to your insurer yourself, and the clinic encourages you to check your insurer's out-of-network policy first.
What should you ask before you book?
Ask who signs each prescription and who you will see at follow-up visits. The clinic names only Dolores Sepulveda-Rangel as a prescriber, so ask whether every hormone or GLP-1 prescription comes from her. Ask whether the medication is included in any price, and whether it is brand-name or compounded. No specific GLP-1 medication is named, so ask which one they would use and why. Ask whether telehealth visits are available, since the clinic does not say.
Ask what the first visit costs, what follow-up visits cost, and what lab work costs beyond the vitamin D offer. Ask how to cancel and whether any membership or recurring charge applies. Check the days too. The office lists Monday, Tuesday and Friday mornings, Saturday by appointment, and closed Wednesday, Thursday and Sunday. If you plan to submit a super-bill, ask whether they can confirm the reimbursement policy with you before your first visit.
Who is it a good fit for?
This is a good fit if you want an in-person endocrinology visit in Newhall with a nurse practitioner, you are ready to pay cash for each visit, and you want the medication cost in writing before you book. It may not suit you if you need telehealth, want a named GLP-1 medication, or need a published price before you call.
Sources: functionalhealthendo.com
Services Offered
What we confirmed
Read off Institute for Functional Health & Nutrition’s own website on 2026-10-14. These are their words, not ours.
- ✓Medical weight loss — listed on their site as “Weight loss options, including oral GLP-1 medications and injections, customized to meet the specific needs of patients of all ages for lasting results” source
- ✓Hormone therapy — listed on their site as “male and female hormone replacement therapy aimed at restoring balance and vitality” source
Hours
Mon 09:00 am – 12:00 pm Tue 09:00 am – 02:00 pm Wed Closed Thu Closed Fri 09:00 am – 01:00 pm Sat By Appointment Sun Closed