Serving Diamond Bar, CA
Wellness Medical Clinic & Thyroid Treatment Center is located in Diamond Bar itself, on Golden Springs Drive near the 57/60 interchange. Diamond Bar residents can be tested, reviewed, and started on a plan without leaving the city — no drive down the hill to a hospital campus in Pomona, Fontana, or Orange County.
4.8 stars · 106 patient reviews
Dr. Hitendra H. Shah, MD · 40+ years · 5,000+ patients treated
Getting here
You are already here — most Diamond Bar addresses are under 10 minutes away.
Take Grand Avenue south to Golden Springs Drive and turn west. The clinic sits at 23341 Golden Springs Dr, Unit 210, past the Diamond Bar Golf Course on your right. Suite entrances are on the second floor and parking is free and on-site, so you are not circling a hospital structure before an early-morning fasting blood draw.
Follow Brea Canyon Road north to Golden Springs Drive, then head east. You will pass the shopping centers near Lemon Avenue before reaching the building. Most Diamond Bar patients report a drive of under ten minutes, which matters when a thyroid workup involves several lab and follow-up visits in the first few months.
Exit Grand Avenue from the 60 or Diamond Bar Boulevard from the 57 and connect to Golden Springs Drive. The clinic is close enough to the interchange that patients coming straight from work in Industry or Ontario can make a late-afternoon appointment without a long detour.
Wellness Medical Clinic & Thyroid Treatment Center
23341 Golden Springs Dr, Unit 210
Diamond Bar, CA 91765
(909) 860-2610
Monday–Friday, 9:30 AM – 5:00 PM
Why patients come in
Patterns we see specifically among patients travelling from Diamond Bar. You do not need all of them to be worth an evaluation.
The most common Diamond Bar visit begins with a lab report from a nearby primary care office that measured TSH alone. Patients are told the thyroid is fine while fatigue, cold hands, hair thinning, and weight gain continue. A complete panel run here adds Free T3, Free T4, Reverse T3, and thyroid antibodies to the picture.
Dr. Shah has practiced in this building for years, and many Diamond Bar families have seen him across two generations. Continuity matters in thyroid care, where dose changes are judged against how you felt six months ago rather than against a single lab range.
Thyroid treatment is not one visit. Because the clinic is in your city, the six-week and twelve-week rechecks that guide dose adjustment are a short errand instead of a half-day commitment.
Conditions and services
Why choose us
Diamond Bar patients who look for thyroid care often find themselves referred out of the city entirely — to a hospital-employed endocrinology group where the physician who reviews your labs may not be the one who saw you last time. Care is split across a system, and the person in front of you changes.
This clinic is built the other way around. Dr. Hitendra H. Shah, MD has more than 40 years in practice and has treated over 5,000 patients. He is the physician you see at the first visit, the one who reads your panel, and the one who adjusts your dose at follow-up. Nothing is handed off.
He is a physician and thyroid and hormone specialist rather than an endocrinologist, and the approach is deliberately functional and whole-person: labs read alongside symptoms, nutrient status and metabolism examined together with the thyroid, and lifestyle treated as part of the plan instead of an afterthought. Patients rate the clinic 4.8 stars across 106 reviews.
This page is general health education for patients in Diamond Bar and nearby communities. It is not medical advice, a diagnosis, or a promise of any particular result. Treatment decisions, including any medication, are made individually during a visit.
Answers
Written and reviewed by Dr. Hitendra H. Shah, MD. Last updated: August 11, 2026.
Diamond Bar, California
Request an appointment with Dr. Hitendra H. Shah, MD in Diamond Bar and start with a complete thyroid and hormone evaluation.
