Dr. Christopher A. Gruber, MD

Dr. Gruber practices at Sub-Acute Care Center in Mission Hills, California.

Dr. Gruber's NPI, 1679743405, was assigned on March 7, 2008. Dr. Gruber graduated from Keck School of Medicine of USC in 2005. Dr. Gruber holds California license A99001.

Dr. Gruber's primary practice is Sub-Acute Care Center, at 11600a Indian Hills Road, Mission Hills, Ca 91345, Mission Hills, CA 91345 in Los Angeles County. The practice phone is (818) 898-4630. Dr. Gruber also practices at Providence Holy Cross Medical Center, 15031 W Rinaldi St, Mission Hills, CA 91345.

Dr. Gruber's primary practice is Sub-Acute Care Center in Mission Hills, California. Dr. Gruber is also affiliated with Providence Holy Cross Medical Center. The medical group on file is Sound Physicians. Dmand AI also links Dr. Gruber to 1 more hospital and 2 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gruber practices, 3 sites in all. Vendor and product names are available with a free account.

Family medicine is Dr. Gruber's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Gruber is board certified in family medicine by the American Board of Family Medicine. Dmand AI has Dr. Gruber's licenses on file in 2 states: California and New Mexico.

Dmand AI lists anemia, bile duct problems, cardiac arrhythmia, circulation problems, congestive heart failure, gastrointestinal bleeding, lung disease: COPD, asthma or bronchitis and pneumonia and respiratory infection among the conditions Dr. Gruber treats.

CMS data shows 441 Medicare services from Dr. Gruber across 4 procedure codes in 2024, for 137 Medicare patients. Medicare paid $43,336 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 137 Medicare patients who saw Dr. Gruber in 2024. The largest group is 75 to 84, with 49 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 68% are also on Medicaid. Their average risk score is 3.51, 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. Gruber's median patient age at 68, with 52% women.

In 2024, Dr. Gruber wrote 438 Medicare Part D claims for 115 patients. 83% of them were for generic drugs. CMS names the drug for 163 of them, across 10 drugs with 11 or more claims each, at $23,982 in total drug cost. In 2023, CMS named 151 claims across 9 drugs.

Dr. Gruber accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 11 general payments to Dr. Gruber from 5 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Genentech, Inc. paid the most, $125.

Dr. Gruber graduated from Keck School of Medicine of USC in 2005.

Dr. Gruber is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.