Close close-icon

Important Alerts:

COVID-19 Information and Updates
For the latest news about the COVID-19 vaccine, eligibility, testing and more click  here.
Expect up to 3 days for results of the routine RNA Nasal Swab Test. Rapid testing is NOT routinely available. For more information, click here.

For other alerts, click here.


Katherine C. Ma, MD FAAOS

Katherine C. Ma, MD FAAOS


Foot and Ankle Surgery


Hudson Valley Hospital Center
1978 Crompond Road
Cortlandt Manor, NY 10567-4115


Jefferson Valley Campus
3680 Hill Boulevard
Jefferson Valley, NY 10535-1522

Monday, Tuesday

Fishkill Merritt Campus
60 Merritt Boulevard
Fishkill, NY 12524-2990


Mount Kisco Campus - 90
90 South Bedford Road
Mount Kisco, NY 10549-3412



Media, Blogs & Content

Ma KC, Baumhauer JF. Pulsed electromagnetic field treatment in would healing. Current Orthopaedic Practice. 2013; 24(5): 487-492.

Ma K, Baumhauer JF. (2013). The Rheumatoid Foot and Ankle. In Gould JS (Ed.), The Handbook of Foot and Ankle Surgery: An Intellectual Approach to Complex Problems. New Delhi: Jaypee Bros.

"The Effects of T'ai Chi on Balance in the Community Dwelling Older Adults," Craig K, Lee S, McMaster N, Rodriguez M, Smith S, Wimberly R, Adams P, MPT, McGinnis PQ, MS PT.

"Prospective Clinical Evaluation of Patients From Missouri with STARI and Comparison with Patients from New York Erythema Migrans," Wormser G, Masters E. Nowakowski J, McKenna D, Holmgren D, Ma K, Ihde L, Cavaliere L, Nadelman R. Clinical Infectious Disease 2005(41):958-965.

Awards & Recognition

Castle Connolly Top Doctor: 2020

  • Westchester Magazine: 2020


Undergraduate & Graduate

SUNY Binghamton University, Binghamton NY

- BA Biology: 1997

University of Medicine & Dentistry of New Jersey and Rutgers University, Stratford NJ

- Master of Physical Therapy: 1999

Medical Education

New York Medical College, Valhalla NY: 2007
- Medical Doctor


Department of Orthopedics, New York Medical College 2012


Foot and Ankle Surgery, University of Rochester 2013

Board Certifications

Orthopaedic Surgery: 2016


Hospital Affiliations

Hudson Valley Hospital Center

Northern Westchester Hospital

Professional Affiliations

American Academy of Orthopaedic Surgeons

American Orthopaedic Foot & Ankle Society

American Medical Women's Association

American Association of Orthopedic Surgeon Active Fellow