Dr. Marilyn Sandra Norton, MD

Dr. Norton practices at South County Hematology Oncology, Inc. in Chula Vista, California.

Dr. Norton's NPI, 1417060054, was assigned on August 17, 2006. Dr. Norton graduated from Loma Linda University School Of Medicine in 1989. Dr. Norton holds California license G70444.

Dr. Norton's primary practice is South County Hematology Oncology, Inc., at 769 Medical Center Ct, Chula Vista, CA 91911 in San Diego County. The practice phone is (619) 482-8430.

Dr. Norton's primary practice is South County Hematology Oncology, Inc. in Chula Vista, California. Dr. Norton is also affiliated with Sharp Chula Vista Medical Center. The medical group on file is South County Hematology Oncology, Inc. Dmand AI also links Dr. Norton to 3 more hospitals, 2 group practices and clinics, 1 home health agency, 1 hospice and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Norton practices, 8 sites in all. Vendor and product names are available with a free account.

Hematology and oncology is Dr. Norton's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Norton is board certified in medical oncology by the American Board of Internal Medicine. Dr. Norton is licensed in California.

Dmand AI lists breast cancer, chronic anemia, chronic embolism thrombosis, chronic leukemia, colorectal cancer, deep vein thrombosis (DVT), lung cancer and lymphoma among the conditions Dr. Norton treats.

CMS data shows 143,753 Medicare services from Dr. Norton across 31 procedure codes in 2024, for 609 Medicare patients. Medicare paid $690,024 for them.

CMS counts 609 Medicare patients who saw Dr. Norton in 2024. The largest group is 65 to 74, with 260 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 57% are also on Medicaid. Their average risk score is 1.89, 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. Norton's median patient age at 70, with 73% women.

In 2024, Dr. Norton wrote 1,468 Medicare Part D claims for 228 patients. 65% of them were for generic drugs. CMS names the drug for 1,202 of them, across 35 drugs with 11 or more claims each, at $7,567,762 in total drug cost. In 2023, CMS named 1,144 claims across 36 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 0 out of 100 for Dr. Norton for performance year 2024, reported individually. Dr. Norton accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 7 papers to Dr. Norton, published from 2016 to 2021. 2016 was the busiest year, with 2. The most frequent topics are Breast Neoplasms and Cancer Survivors. Dr. Norton's most frequent co-authors are Christine Laronga, MD, Richard G. Roetzheim, MD and Peter A. Johnstone, MD.

CMS Open Payments shows 429 general payments to Dr. Norton from 62 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 90% of the total. Novartis Pharmaceuticals Corporation paid the most, $1,046.

Dmand AI lists 1 award for Dr. Norton, most recently CMS Stage 1 EHR in 2014.

Dr. Norton graduated from Loma Linda University School Of Medicine in 1989. Dr. Norton is a member of ASCO.

Dr. Norton is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.