A privately held, locally owned company established in February 2000,with a philosophy towards superior customer service as its #1 priority. With forty plus years of practice management experience in senior management positions, we have experienced and dedicated employees with a minimum of 3 years medical billing experience

Earl Ongman – Owner/Managing Partner: 30 years of experience in anesthesia billing and compliance industry.  He also has received his CPC certification from the American Academy of Professional Coders.

Cindy Birmingham – Owner/Managing Partner: 17 years anesthesia billing and management experience.  Coming from an accounting background she has utilized this experience to the benefit of Sierra’s clients.

Candice Almonte – Director of Operations

Gianelli Buensuceso, CPC – Director of Coding

Tricia Forshey – Director of Physician Credentialing

Krystle Wright – Director of Human Resources

Shirley Flanagan – Client Service Manager- Fresno