Physician

Mark R Wieland, MD

According to 2025 Medicare claims, Mark Wieland, MD (NPI: 1134114382) practices ophthalmology in the San Jose-Sunnyvale-Santa Clara, CA market, with the plurality of this provider's patient population coming from Santa Clara, CA. This provider's primary affiliated billing organization is NORTHERN CALIFORNIA RETINA VITREOUS ASSOCIATES MEDICAL GROUP, INC. (NPI: 1538275920; TIN: 942906234) and primary practice location at 95124-4002.

Wieland's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 1,340 traditional Medicare patients, billed 70,905 HCPCS/CPT codes, and received $3,617,523 in Medicare payments. The top billing code was 92014 (Established patient complete exam of visual system). Part D data shows 119 prescription claims across 31 beneficiaries totaling $10,171 in drug costs, led by Latanoprost (Latanoprost). Open Payments data shows 23 records totaling $79,512. You can download detailed data with all billing codes (2015-2024). For more recent data, please contact us.

Over the past 10 years, this provider's Medicare Part B carrier billing has moved from a lower plateau to a higher plateau, from $1,451,355 to $3,617,523. In contrast, Part D prescription costs have fallen sharply in recent years, from $38,687 to $10,171. For DME billing, this provider has fewer than 5 years of reported data, so a reliable trend cannot be assigned.