Dr. Robert Alan Feren, MD

Dr. Feren practices at Adventist Health Sonora in Sonora, California, part of Adventist Health.

Dr. Feren's NPI, 1851453104, was assigned on December 14, 2006. Dr. Feren graduated from George Washington University School of Medicine and Health Sciences in 2002. Dr. Feren holds California license A89317.

Dr. Feren's primary practice is Adventist Health Sonora, at 1000 Greenley Road, Sonora, CA 95370 in Tuolumne County. The practice phone is (209) 536-5000.

Dr. Feren's primary practice is Adventist Health Sonora in Sonora, California, part of Adventist Health. Dr. Feren is also affiliated with Doctors Medical Center Modesto. The medical group on file is Vituity. Dmand AI also links Dr. Feren to 2 more group practices and clinics and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Feren practices, 4 sites in all. Vendor and product names are available with a free account.

Hospitalist is Dr. Feren's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Feren is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Feren's licenses on file in 4 states: California, Oregon, Washington and Arizona.

Dmand AI lists acute diabetes, acute respiratory failure, acute stomach ulcer, anemia, cardiac arrhythmia, cellulitis, chest trauma and circulation problems among the conditions Dr. Feren treats.

CMS data shows 1,241 Medicare services from Dr. Feren across 6 procedure codes in 2024, for 351 Medicare patients. Medicare paid $123,909 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 351 Medicare patients who saw Dr. Feren in 2024. The largest group is 65 to 74, with 118 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 34% are also on Medicaid. Their average risk score is 2.05, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Feren's median patient age at 77, with 57% women.

In 2024, Dr. Feren wrote 314 Medicare Part D claims for 149 patients. 89% of them were for generic drugs. CMS names the drug for 124 of them, across 8 drugs with 11 or more claims each, at $10,639 in total drug cost. In 2023, CMS named 159 claims across 11 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Feren for performance year 2024, reported as part of a group. Dr. Feren accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 1 paper to Dr. Feren. Dr. Feren's most frequent co-authors are Brian D. Crompton, MD, Robert E. Goldsby, MD and Richard J. O'Donnell, MD.

CMS Open Payments shows 5 general payments to Dr. Feren from 3 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Lundbeck LLC paid the most, $105.

Dr. Feren graduated from George Washington University School of Medicine and Health Sciences in 2002.

Dr. Feren is in network with 5 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.