Dr. Donna Walker, MD

Dr. Walker practices at Lompoc Valley Medical Center in Lompoc, California, part of Lompoc Valley Medical Center.

Dr. Walker's NPI, 1528086964, was assigned on July 17, 2006. Dr. Walker graduated from David Geffen School of Medicine at UCLA in 1994. Dr. Walker's California license number on file is A55693.

Dr. Walker's primary practice is Lompoc Valley Medical Center, at 1515 E Ocean Avenue, Lompoc, CA 93436 in Santa Barbara County. The practice phone is (805) 737-3300. Dr. Walker also practices at Lompoc Valley Medical Center, 1509 Ocean Way, Lompoc, CA 93436.

Dr. Walker's primary practice is Lompoc Valley Medical Center in Lompoc, California, part of Lompoc Valley Medical Center. Dr. Walker is also affiliated with Dignity Health - Marian Regional Medical Center. The medical group on file is Lompoc Valley Medical Center. Dmand AI also links Dr. Walker to 2 more hospitals, 1 physician office, 1 home health agency and 1 hospice, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 7 sites in all. Vendor and product names are available with a free account.

Hematology and oncology is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Walker is board certified in medical oncology by the American Board of Internal Medicine. Dmand AI has Dr. Walker's licenses on file in 2 states: California and Hawaii.

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. Walker treats.

CMS data shows 1,091 Medicare services from Dr. Walker across 3 procedure codes in 2024, all of them office visits, for 285 Medicare patients. Medicare paid $79,785 for them.

CMS counts 285 Medicare patients who saw Dr. Walker in 2024. The largest group is 65 to 74, with 110 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 31% are also on Medicaid. Their average risk score is 1.72, 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. Walker's median patient age at 68, with 62% women.

In 2024, Dr. Walker wrote 707 Medicare Part D claims for 102 patients. 77% of them were for generic drugs. CMS names the drug for 457 of them, across 22 drugs with 11 or more claims each, at $571,166 in total drug cost. In 2023, CMS named 409 claims across 17 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Walker for performance year 2024, reported as part of a group. Dr. Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Walker as offering telehealth.

CMS Open Payments shows 112 general payments to Dr. Walker from 27 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 52% of the total. Novartis Pharmaceuticals Corporation paid the most, $1,586.

Dmand AI lists 1 award for Dr. Walker, most recently CMS Stage 1 EHR in 2013.

Dr. Walker graduated from David Geffen School of Medicine at UCLA in 1994.

Dr. Walker is in network with 15 carriers, including Elevance, Aetna and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.