Contact Us: 
(281) 693-5289
Physical Therapist

Venkatesh "Venky" Sappiddi

Venky is a health care professional who diagnoses and treats individuals of all ages who have medical or other health-related conditions that limit their abilities to move and perform functional activities in their daily lives. Physical therapists examine each individual and develop a plan using treatment techniques to promote the ability to move, reduce pain, restore function, and prevent disability.


Deyanira Gonzalez, Au.D.

Deyanira is an extremely friendly, bilingual audiologist who works for the Dizziness and Balance Centers of America, which is conveniently located next door. Audiologists are experts in providing services in the prevention, diagnoses, and evidence-based treatment of hearing and balance disorders of people of all ages. Call today to schedule an appointment!

Practice Administrator

Natasha Mahin

Responsible for the overall business operations and administration of Physicians of Katy. Natasha oversees all aspects of the practice and its management. She handles hires and terminations, training, and the supervision of all staff members. Her number one goal is to ensure the office provides quality healthcare while promoting compassion and respect for all. She can easily be reached via email, phone, or face to face meeting to address any patient questions or concerns. 

Billing Manager

Maureen Miranda

With 18 years of medical billing experience, Maureen leads and oversees the billing department to ensure proper billing procedures. She works with a highly qualified team to handle daily billing inquires. If you have any questions or concerns regarding your account, Maureen will be happy to help address them! She can conveniently be contacted via phone, email, or face to face meeting.

Vein Specialist

William P. Kalchoff, MD.

Dr. Kalchoff is an experienced and trusted vein specialist that works for The Vein Treatment Center. Offering a wide range of services including sclerotherapy, phlebectomy, EVLT, spider vein treatment, varicose vein treatment, and preventive health care, Kalchoff and staff are available Monday through Friday. Call or check online for hours of operation.

Front Office Supervisor

Mireya Garcia

Mireya is in charge of overseeing all front office responsibilities. She is the first point of contact for any questions or concerns regarding things that are handled by the front staff. Mireya answers phones, schedules appointments, verifies insurance benefits, and is responsible for processing medical records. Mireya works closely with the office manager to plan and organize clinic activities and daily functions.  

Specialists We Work With

Our Team

At Physicians of Katy, we firmly believe that our employees play a vital role in the success of the practice as a whole. Every member of our team contributes to making our clinic a friendly and welcoming environment for individuals and families in the Greater Houston/Katy area. Maintaining a level of respect, professionalism, and empathy is the number one priority of all staff members. Thank you for choosing Physicians of Katy, and we are always happy to help!

Billing Specialist

Michael Carrizales

Michael is a billing specialist who has 17 years of medical billing experience, which makes him a reliable resource in this field of work. He is responsible for sending out daily claims, contacting insurance companies, handling patient accounts, sending out statements, and collecting patient balances. If you have any questions or concerns regarding your account, Michael or any member of our billing staff will be happy to help you!

Nurse Practitioner

Chelsea Bohac, MSN, AGNP-BC

Chelsea is qualified to order and interpret lab work and x-rays, diagnose acute and chronic illnesses, prescribe medications, manage a patient's overall care, counsel, and educate patients on prevention and health management. Under direct supervision of a physician, Chelsea is able to accurately determine the best course of treatment for every patient on a case by case basis.