Board-credentialed as a Chiropractic Internist, one of the comparatively few in California, Dr. Philip Princetta operates Medicine Free Healing from the 3344 Fourth Ave medical building above the Hillcrest corridor. The internist scope means diagnostic and treatment authority over root-cause illness without pharmaceuticals, a philosophy echoed in the inflammation-reduction protocols at Pure Infrared Sauna Studio. NPI 1609053446 lists the practice under chiropractic internist credentialing in San Diego since 2008. Treatment protocols draw on therapeutic fasting, anti-inflammatory nutrition, and structural correction rather than symptom-masking pharmaceutical referrals. For patients whose chronic muscle holding patterns require focused soft-tissue work between visits, the integrative scope pairs cleanly with the deep-pressure neuromuscular sessions at The Knotstop. The most complex cases involve multi-system chronic conditions such as autoimmune flares, GI dysfunction, and fibromyalgia managed through combined chiropractic internal medicine, dietary intervention, and structural rehabilitation.