Kristy Michelle Zerfass, PA

Kristy Zerfass practices at Orthopaedic & Neurosurgery Specialists in Stamford, Connecticut.

Kristy Zerfass' NPI, 1558769935, was assigned on December 16, 2014. Kristy Zerfass holds Connecticut license 3253.

Kristy Zerfass' primary practice is Orthopaedic & Neurosurgery Specialists, at 5 High Ridge Park, Stamford, CT 06905 in Western Ct County. The practice phone is (203) 869-1145.

Kristy Zerfass' primary practice is Orthopaedic & Neurosurgery Specialists in Stamford, Connecticut. Kristy Zerfass is also affiliated with Middlesex Hospital. The medical group on file is Orthopaedic and Neurosurgery Specialists. Dmand AI also links Kristy Zerfass to 3 more group practices and clinics and 2 medical groups, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Kristy Zerfass practices, 4 sites in all. Vendor and product names are available with a free account.

Surgical is Kristy Zerfass' primary specialty in the NPI Registry, under taxonomy code 363AS0400X. Kristy Zerfass is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Kristy Zerfass is licensed in Connecticut.

Dmand AI lists arthritis, broken or dislocated ankle/ or foot, bursitis, carpal tunnel syndrome, chest wall injury, hand joint or tendon inflammation, joint cyst and joint pain among the conditions Kristy Zerfass treats.

CMS data shows 1,517 Medicare services from Kristy Zerfass across 5 procedure codes in 2024, for 182 Medicare patients. Medicare paid $12,863 for them. Every service was in an office.

CMS counts 182 Medicare patients who saw Kristy Zerfass in 2024. The largest group is 75 to 84, with 64 patients. 75% of them have high cholesterol, and 72% have high blood pressure. 20% are also on Medicaid. Their average risk score is 1.12, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Kristy Zerfass' median patient age at 70, with 60% women.

In 2024, Kristy Zerfass wrote 879 Medicare Part D claims for 482 patients. 100% of them were for generic drugs. CMS names the drug for 830 of them, across 17 drugs with 11 or more claims each, at $4,442 in total drug cost.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Kristy Zerfass for performance year 2024, reported as part of a group. Kristy Zerfass accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 2 general payments to Kristy Zerfass from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Vertex Pharmaceuticals Incorporated paid the most, $32.

Kristy Zerfass is a member of AAPA.