Physician

Helen Feng, MD

According to 2025 Medicare claims, Helen Feng, MD (NPI: 1629174149) practices rheumatology 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 BAY AREA ARTHRITIS CARE, INC., A MEDICAL GROUP (NPI: 1841623733; TIN: 463409440) and primary practice location at 95124-9998.

Feng's data goes back to 2015 and runs through 2024. For example, in 2024, this provider had 315 traditional Medicare patients, billed 63,718 HCPCS/CPT codes, and received $964,852 in Medicare payments. The top billing code was 99215 (Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more). Part D data shows 1,977 prescription claims across 280 beneficiaries totaling $1,674,241 in drug costs, led by Xeljanz Xr (Tofacitinib Citrate). 2019 DME data shows 12 claims. Open Payments data shows 211 records totaling $6,021. 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 did not follow a clear longitudinal pattern. Concurrently, Part D prescription costs have moved up and down with repeated peaks and valleys, starting at $1,284,728 and ending at $1,674,241. In contrast, DME billing represents a smaller volume and started with an early spike, then settled into a lower baseline, moving from $808 to $0.