Dr. Matthew S. Zealear, MD

Dr. Zealear practices at Sierra Ambulatory Surgery Center - Grass Valley in Grass Valley, California.

Dr. Zealear's NPI, 1366516981, was assigned on November 17, 2006. Dr. Zealear graduated from UCSF School of Medicine in 1982. Dr. Zealear holds California license G53657.

Dr. Zealear's primary practice is Sierra Ambulatory Surgery Center - Grass Valley, at 400 Sierra College Drive Suite B, Grass Valley, CA 95945. The practice phone is (530) 272-3411.

Dr. Zealear's primary practice is Sierra Ambulatory Surgery Center - Grass Valley in Grass Valley, California. Dr. Zealear is also affiliated with Dignity Health - Sierra Nevada Memorial Hospital. The medical group on file is Western Sierra Medical Clinic. Dmand AI also links Dr. Zealear to 1 more group practice or clinic and 1 medical group, each named with a free account.

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

Ophthalmology is Dr. Zealear's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Zealear is board certified in ophthalmology by the American Board of Ophthalmology. Dr. Zealear is licensed in California.

Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, cold sores or genital herpes, conjunctivitis, dry eye, eye infection or inflammation and eyelid inflammation among the conditions Dr. Zealear treats.

CMS data shows 3,871 Medicare services from Dr. Zealear across 14 procedure codes in 2024, for 1,498 Medicare patients. Medicare paid $238,741 for them.

CMS counts 1,498 Medicare patients who saw Dr. Zealear in 2024. The largest group is 65 to 74, with 633 patients. 75% of them have high cholesterol, and 62% have high blood pressure. 16% are also on Medicaid. Their average risk score is 0.96, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Zealear's median patient age at 73, with 60% women.

In 2024, Dr. Zealear wrote 1,911 Medicare Part D claims for 517 patients. 60% of them were for generic drugs. CMS names the drug for 1,808 of them, across 23 drugs with 11 or more claims each, at $204,487 in total drug cost. In 2023, CMS named 1,518 claims across 18 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Zealear for performance year 2024, reported as part of a group. Dr. Zealear accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 39 procedures of cataract surgery by Dr. Zealear, more than 58% of the clinicians it reports for that procedure.

Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 52 general payments to Dr. Zealear from 21 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Aerie Pharmaceuticals, Inc. paid the most, $236.

Dr. Zealear graduated from UCSF School of Medicine in 1982.

Dr. Zealear is in network with 12 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.