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28 Years
experience
Emergency
services
Your Trusted Medical Care Partner in Redding, CA
Shasta Critical Care Specialists is a distinguished group of board-certified physicians dedicated to providing comprehensive, patient-centered care for individuals facing complex kidney, lung, immune, and allergic conditions. Since 1998, our team has delivered state-of-the-art treatment across the full spectrum of carefrom outpatient consultations to critical care interventions in hospital settings. With over 150 years of combined experience, our nephrology, pulmonology, and critical care specialists prioritize continuity of care, ensuring seamless coordination between inpatient and outpatient services. Our physicians hold leadership roles in dialysis units and partner with regional hospitals, including Mercy Medical Center and Shasta Regional Medical Center, to address conditions like chronic kidney disease, COPD, and life-threatening illnesses.

Committed to advancing medical knowledge, we actively participate in national professional organizations, publish clinical research, and serve as volunteer faculty for UC Davis, educating future healthcare providers. Our practice emphasizes community engagement, offering continuing medical education and advocating for patient-centered policies. By integrating cutting-edge expertise with compassionate care, we strive to optimize patient outcomes while supporting families through challenging health journeys. Our dedication to quality is reflected in our board certifications, cross-disciplinary training, and unwavering focus on improving lives in Northern California.
Services
Nephrology Pulmonology Critical Care Dialysis Management Asthma Treatment COPD Management Kidney Transplantation Respiratory Disease Care Hemodialysis Plasmapheresis
Details
  • Year established: 1998
Highlights and features
  • We offer over 150 years of combined critical care experience.
  • Our physicians are board-certified in nephrology, pulmonology, and critical care.
  • We provide seamless continuity of care from outpatient to critical settings.
  • Our team actively contributes to medical education and research.
  • We partner with leading regional hospitals for comprehensive patient care.
Associations and certifications
  • American Board of Internal Medicine
Services
Nephrology
Our nephrology services focus on diagnosing and managing kidney diseases, including chronic kidney failure, hypertension, and kidney stones. Patients receive personalized treatment plans for conditions like diabetic nephropathy and lupus nephropathy. Our board-certified specialists provide dialysis care and pre-transplant evaluations.
Pulmonology
Pulmonology services address respiratory conditions such as asthma, COPD, and lung cancer. Our physicians specialize in allergy management, sleep disorders, and interstitial lung disease. Treatments include pulmonary function testing and tailored therapies for chronic bronchitis and emphysema.
Critical Care
Critical care services treat life-threatening conditions like sepsis, respiratory failure, and shock. Our team provides 24/7 hospital-based care for patients in intensive care units, focusing on multi-organ support and post-discharge coordination with primary providers.
Dialysis Management
We oversee hemodialysis and peritoneal dialysis treatments for patients with end-stage renal disease. Services include vascular access management and coordination with dialysis units at DaVita and DCI facilities in Redding and Red Bluff.
Asthma Treatment
Our asthma and allergy specialists develop customized treatment plans for chronic respiratory conditions. Services include trigger management, inhaler therapy, and immunotherapy to improve long-term lung function and quality of life.
People
Bruce G. Bartlow, MD FACP
Founder
Dr. Bartlow founded the practice in 1971 and combines clinical expertise with community leadership. He contributes to medical literature and education while maintaining an active role in patient care and local outreach.
Jeffrey B. Krahling, MD PhD
Critical Care Specialist
Dr. Krahling brings academic and clinical experience to nephrology and critical care. He advocates for transplant patients and contributes to research while balancing outdoor hobbies with family time.
Rafael Lupercio, MD
Pulmonologist
Dr. Lupercio specializes in pulmonary diseases and critical care. He combines compassionate care with community engagement, focusing on patient education and family-centered treatment approaches.
Sriram Sambasivan, MD
Nephrologist
Dr. Sambasivan provides gentle, technology-driven care for kidney patients. Recognized for compassionate service, he integrates digital innovation with personalized treatment plans for chronic kidney disease management.
Questions
What specialties does Shasta Critical Care Specialists offer?
We specialize in nephrology, pulmonology, and critical care medicine for both outpatient and hospitalized patients.
Do you provide 24/7 care for critical patients?
Yes, our team offers round-the-clock availability for hospital admissions and critical care management.
Where are your dialysis services located?
We provide dialysis care at DaVita Redding Dialysis and DCI facilities in Redding and Red Bluff.
How do you coordinate care with primary physicians?
We maintain continuous communication with referring providers during hospitalization and post-discharge planning.
Are your physicians involved in medical education?
Yes, our team serves as volunteer faculty for UC Davis and teaches family practice residents locally.
Reviews (4)
Doug Reid
Feb 12, 2022 Report
Pretty sure I have not reviewed any medical outfits before because what can you say, really? I loved my interactions with Dr. LUPERCIO as well as the outcome. "Your results may vary" of course. But the office is well staffed, well planned, well run & well lead. The technicians running my tests were knowledgeable & friendly. The equipment was new, seemed state of the art and the techs worked to make uncomfortable circumstances from becoming discomforting. I appreciated that. So, while picking a doctor is still a crapshoot h no one can guarantee a favorable outcome, the team here will NOT make you grind your teeth in frustration. DOUGout
James Morlan
Feb 06, 2022 Report
This is a doctor's office where people go for breathing issues. I can hardly breathe and I'm still forced to wear a mask. A little old lady ahead of me was told she had to wear a mask even though she had an oxygen tank on her. When I asked the office manager why we were forced to wear these ineffective masks but yet the secretaries sitting at the desks and walking around the office were not required to, I was told that that's their policy and that's just the way it is. This is a perfect example of mask hypocrisy. Rules for thee but not for me. I will not keep quiet and I will raise my voice a little louder to make sure this issue is addressed. Shame on you!
Jfronefield
Aug 19, 2021 Report
The doctors are good caring people, but sadly the management encourages a hostile work environment and refuses to except blame and change their negative ways.
DeAnna Clemens
Jun 22, 2020 Report
Lynn Holmquist is a godsend. Her compassion and care is super. It's hard having COPD and Sleep Disorders, but she makes it so much easier. Thanx Lynn for your compassion and care.