Rheumatology Care for North Orange County
Rheumatologist Serving Fullerton, CA
Maybe your knees have been swelling for a few weeks now and nobody's given you a straight answer why. Or a bone scan came back with a number on it and the person who handed it to you didn't really explain what it meant. Either way, our office isn't far. We're in Whittier, about 20 minutes from Fullerton, and we handle rheumatoid arthritis, lupus, gout and osteoporosis right here, bone density scan included, so you're not driving to three different buildings just to get one answer. Call (562) 758-6600, or book online if that's easier.
Why This Gets Ignored for So Long
Arthritis doesn't show up on a regular blood panel your primary care doctor runs. And it's rarely dramatic enough to land someone in the ER. So people just... push through it. There's a guy in his 40s from Fullerton who still plays catch with his kids even though his hands ache by dinnertime — he figures it's nothing. There's a retired teacher who blamed her hip stiffness on getting older for two years before she finally couldn't get out of a chair without pushing off the armrest.
Around 58.5 million adults in the U.S. live with some form of diagnosed arthritis. California actually runs a bit below the national rate, but that still leaves a lot of people in Orange County walking around in pain that never got properly looked at.
Here's what makes it tricky. Rheumatic disease and ordinary wear-and-tear can look nearly identical from the outside, at least at first. Telling them apart takes bloodwork, imaging, and someone who's actually seen enough of both to know the difference without guessing.
What We See Most in Fullerton Patients
Rheumatoid Arthritis
The immune system starts attacking the joint lining, usually the hands and feet first. RF, anti-CCP, ESR or CRP, and a hands-on exam tell us what we're dealing with. Starting a DMARD or biologic early is really what limits the damage down the road.
Osteoarthritis
Cartilage thins out, usually somewhere past 50. We lean on injections and PT referrals first. Most people don't need surgery nearly as soon as they think.
Lupus and related autoimmune conditions
Lupus, Sjögren's, scleroderma, vasculitis, mixed connective tissue disease. These need closer watching since they can affect organs, not just joints.
Gout
Sharp, sudden pain, usually the big toe. We knock down the flare first, then look at uric acid levels and usually start something like allopurinol so there isn't a rerun in a few months.
Osteoporosis
No symptoms at all until something breaks. Our DEXA scanner is on-site so you walk out with an actual T-score, not a callback next week.
Fibromyalgia
Widespread pain and fatigue, often mistaken for something else early on. We rule out overlap, then work on medication, sleep, and pacing.
What Actually Happens When You Come In
Bloodwork usually comes first — RF, anti-CCP, ANA, ESR, CRP, uric acid, whatever fits what you're describing. Then imaging if we need it. X-rays catch bone changes. Ultrasound shows inflammation happening in real time. Sometimes we send you out for an MRI if something needs a closer look than we can get in-office. If bone density's the concern, the DEXA scan happens that same visit. Takes about ten minutes.
After that we actually talk. Not a "here's your prescription, see you in three months" kind of talk — more like, why methotrexate over a biologic in your case, or why allopurinol matters even after the flare's gone. You leave knowing what the medication does and what to watch for, not just holding a piece of paper. Then it's follow-up labs and scans on whatever timeline makes sense, adjusting as we go, because this isn't the kind of thing that gets solved in one visit.
When It's Worth Not Waiting Anymore
Most people put this off simply because nothing feels urgent. A few things genuinely are.
Joint pain or swelling that's stuck around past six weeks. Morning stiffness that eats up more than half an hour before it loosens. More than one joint acting up, especially if it's symmetric — both hands, both knees. Fatigue you can't explain, or a low fever, or a rash that showed up alongside the joint pain. A parent or sibling with rheumatoid arthritis, lupus, or psoriatic arthritis. A bone that broke from a fall that really shouldn't have broken anything. Sudden, severe pain in the big toe out of nowhere. Or you're a woman 65 or older and you've never had a bone density scan — the USPSTF actually recommends screening at that point, and sooner if you've got added risk factors like a family history of hip fracture.
If any of that sounds like you, just call. We'll tell you honestly what's open this week instead of making you guess.
Why People Make the Drive From Fullerton
You actually get time with the doctor here. Eight-minute visits don't really work for rheumatology, so we don't run the practice that way.
Dr. Gilbert Gelfand has been doing this for more than 30 years now. He's a Clinical Professor of Medicine at USC Keck and Chief of Rheumatology over at Rancho Los Amigos Medical Center, if credentials matter to you (they should).
262 reviews on Google, sitting at 4.9 out of 5. That kind of thing is a lot harder to fake than a slick-looking website.
We explain the why behind whatever we prescribe, not just hand it over. Spanish, Mandarin, Cantonese, and Farsi are all spoken directly by staff here, so nobody's stuck waiting on a phone interpreter mid-visit. And some patients end up qualifying for clinical trials, which can mean earlier access to treatments that aren't widely available yet.
What Patients Say
"She actually listened instead of rushing me out the door. First doctor who seemed to get what I was dealing with."
— paraphrased from a Google review"Put off getting a bone scan for years. Finally got it done and had the results before I even left the building that day."
— paraphrased from a Google review"Used to end up in urgent care every couple months for gout flares. Haven't had one since we figured out the long-term plan together."
— paraphrased from a Google reviewWho You'll Actually See
Gilbert F. Gelfand, M.D.
Chief of Rheumatology at Rancho Los Amigos Medical Center. More than 30 years in practice. English and Spanish.
Tien-I Karleen Su, M.D., FACR
Founded the Rheumatology Private Practice Alliance and chairs the ACR Community Practice Council. English, Spanish, Mandarin.
Susan Mansourian, M.D., FACR
Tends to build a plan around the person in front of her rather than reaching for a template, especially in complicated cases. English and Farsi.
Branden Ireifej, M.D.
Rheumatoid arthritis, lupus, psoriatic arthritis, gout, vasculitis. Talks decisions through with patients instead of just handing them down.
Getting Here From Fullerton
We're at 12456 Washington Blvd in Whittier. About 20 minutes, give or take traffic. Lambert Road through La Habra works most days, or take the 57 to the 5 if the surface streets are backed up. Patients come in from all over this side of the county:
Questions We Get a Lot
Do I need a referral?
Depends on your plan, honestly. HMOs usually want one from your primary doctor first. PPOs, you can usually just book with us directly. Call and we'll figure it out with you on the phone.
How long is the wait for a first appointment?
It moves around depending on the time of year. Active inflammatory arthritis or a bad gout flare jumps the line. Call (562) 758-6600 and we'll give you a real answer, not a guess.
What should I bring?
Your current meds, any recent labs, imaging on a disc or through the patient portal, and a rough idea of when this started.
Can I get the bone scan done the same day?
Yep.
Do you have Spanish-speaking staff?
Yes — including physicians who speak it directly, not through an interpreter.
What if I already see a rheumatologist and just want another opinion?
Honestly, that's a pretty common reason people end up here. Bring whatever records you've got and we'll take it from there.
Get a Real Answer
You don't have to keep guessing about your joints or your bones. Come in, we'll run the right tests, and we'll actually walk you through what they mean.