Serving Walnut, CA
Walnut sits directly northwest of the clinic, a few minutes away by Valley Boulevard or Grand Avenue. For Walnut residents, a thyroid workup does not require driving into Pomona or West Covina for a hospital appointment.
4.8 stars · 106 patient reviews
Dr. Hitendra H. Shah, MD · 40+ years · 5,000+ patients treated
Getting here
Usually under 10 minutes via Valley Boulevard or Grand Avenue.
Take Valley Boulevard east to Grand Avenue, then head south into Diamond Bar and connect to Golden Springs Drive. The clinic is at 23341 Golden Springs Dr, Unit 210. This route avoids the freeway entirely, which most Walnut patients prefer for a morning fasting draw.
Follow Lemon Avenue south across the 60 Freeway into Diamond Bar, then turn east on Golden Springs Drive. Students, staff, and families around Mt. San Antonio College often use this approach because it takes well under ten minutes.
Take Colima Road or Nogales Street east to Grand Avenue and turn south. Grand connects directly to Golden Springs Drive near the golf course, and parking at the building is free and on-site.
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 Walnut. You do not need all of them to be worth an evaluation.
Many Walnut patients arrive already taking levothyroxine prescribed elsewhere, with a TSH that looks acceptable and fatigue, brain fog, and cold intolerance that never lifted. Dose, formulation, timing, and absorption are all reviewed rather than assumed.
Weight that will not move despite disciplined eating is one of the most common presenting complaints from Walnut. Blood sugar, insulin, and Reverse T3 are checked alongside the thyroid panel because they frequently explain the plateau.
Because Walnut is so close, families often come in together after one member is diagnosed. Autoimmune thyroid disease clusters in families, and screening relatives early changes how mild cases are managed.
Conditions and services
Why choose us
Walnut residents referred for thyroid care are usually sent to a hospital-affiliated endocrinology practice in Pomona or West Covina. Those groups are competent, but they are built around volume: brief visits, TSH-first protocols, and whichever physician is available that day.
This clinic offers the opposite trade. One named physician — Dr. Hitendra H. Shah, MD, with 40+ years of practice and more than 5,000 patients treated — handles the evaluation, the interpretation, and every dose change. Patients have rated the clinic 4.8 stars across 106 reviews, more reviews than any endocrinologist within fifteen miles.
Because Walnut is only minutes away, the follow-up rhythm that makes thyroid treatment work — recheck, adjust, recheck again — is realistic instead of burdensome.
This page is general health education for patients in Walnut 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.
