Academic-caliber rheumatology. Private practice access.
On-site biologic infusions. In-office diagnostic ultrasound. Active clinical research. The expertise of a hospital rheumatology program — with a physician who actually knows your name.
Why Synergy Rheumatology
Hospital-level rheumatology services in a physician-owned private practice.
On-Site Infusion Center
RN-administered biologic infusions — infliximab, Cosentyx, Reclast, and more — in a comfortable, monitored setting. No hospital visits, no separate facilities.
In-Office Ultrasound
RhMSUS-certified musculoskeletal ultrasound on a Mindray MX7. Same-day imaging and results — no referral, no waiting weeks.
Clinical Research
Active clinical trials in rheumatology, physician-supervised on-site. Access to emerging therapies before they reach market.
Unhurried Appointments
75-minute new patient visits. Thorough follow-ups. Your questions answered, not rushed. Autoimmune disease doesn't fit a 15-minute slot.
Coordination Without the System
Your rheumatologist coordinates directly with your PCP, specialists, and labs — without the delays of a hospital network. Records from Scripps, Sharp, and UCSD accessible from day one.
Services
Three specialized service lines, integrated with your rheumatologic care.
Infusion Center
On-site RN-administered biologic infusions including infliximab, Cosentyx, and Reclast. Comfortable, monitored, and coordinated with your treatment plan.
Learn moreDiagnostic Ultrasound
RhMSUS-certified musculoskeletal ultrasound using the Mindray MX7. In-office imaging with same-day results for joints, tendons, and soft tissue.
Learn moreObesity Medicine
Evidence-based weight management integrated with rheumatologic care. Addressing the inflammatory burden of obesity alongside autoimmune disease.
Learn more
Your Rheumatologist
Zachary Fellows, MD
Board-Certified Rheumatologist
Board-certified rheumatologist who pairs evidence-based medicine with a foundation in lifestyle — sleep, diet, movement, and connection — because complete care means treating the whole clinical picture, not just writing prescriptions. Active clinical researcher and California Rheumatology Alliance Board member. Every treatment decision is yours; Dr. Fellows recommends, you choose.
- Board-certified in Rheumatology and Internal Medicine
- California Rheumatology Alliance (CRA) Board Member
- UCSD Clinical Integration Network (CIN) affiliated
- RhMSUS-certified musculoskeletal ultrasound
- On-site clinical research principal investigator
What Our Patients Say
Curated from verified Google Reviews.
“Dr. Fellows is the most thorough and knowledgeable rheumatologist I have ever seen. He takes the time to explain everything and genuinely cares about finding the right treatment plan. The infusion center is comfortable and the nursing staff is wonderful.”
J. Brown
“After years of being dismissed by other doctors, Dr. Fellows actually listened and ran the right tests. Diagnosed within two visits. The in-office ultrasound meant I didn't have to wait weeks for imaging results. Highly recommend.”
M. Torres
“The patient portal is a game-changer. I can reach the doctor directly without sitting on hold. My infliximab infusions are smooth and the nursing team is fantastic. This is how medicine should work.”
S. Lawson
“I was referred here for lupus management and could not be happier. Dr. Fellows explains the science behind every decision and the staff makes a stressful diagnosis feel manageable. The whole team is kind and professional.”
R. Chen
“Excellent experience from start to finish. The office is modern, wait times are minimal, and Dr. Fellows is incredibly knowledgeable. He caught something on ultrasound that two other doctors missed. Grateful I found this practice.”
K. Patel
Insurance & Access
We accept all major PPO plans, Tricare, and select HMO plans including Greater Tri-Cities IPA, Sharp Community Medical Group, and UCSD PHSO. Most Medicare Advantage PPO plans accepted.
Copays, estimated coinsurance, and deductible amounts are collected at check-in based on information provided directly by your insurance plan. If the estimate differs from the final processed amount, we'll issue a statement or apply a credit to your account — no surprise bills after the fact.
Ready to get started?
Schedule an appointment or call for an introductory phone consultation to see if Synergy Rheumatology is the right fit.