Baystate Health print this page
164 High Street, Suite 200
Greenfield MA, 01301
Fax: 413-774-2106
Office Hours: Monday - Friday: 9:00 a.m. - 5:00 p.m.
Physicians & Staff:

Robert Ajello, MD - *Services also provided at the Northampton Outpatient Clinic

Sunil Kumar Dhunna, MD


Kathy Thomas, Practice Manager


*Some of our providers also see patients at the Baystate Outpatient Center in Northampton.

Services Include: Pulmonary disease and diagnosis and treatment of sleep disorders.
About Our Practice:

An estimated 70 million Americans suffer from sleep problems.  The experienced staff at Baystate Medical Practices - Greenfield Pulmonary and Sleep Medicine can help. Our board certified pulmonologists provide a full range of pulmonary services plus the latest high technology testing and diagnosis for all types of sleep disorders.


Dr. Ajello is on staff at Baystate Franklin Medical Center where he serves as the medical director for the Baystate Regional Sleep Program, offering comprehensive sleep studies to provide the most accurate results and diagnosis for a range of sleep disorders, including:


Specialty:  Pulmonology; Sleep Medicine

We participate in most insurance programs offered in our area. If you have any questions about whether your specific health plan covers our services, please call the toll-free number on the back of your insurance member ID card.


If you have commercial insurance coverage, primary or secondary, we will submit a claim to your insurance carrier. You are responsible for all balances due after your insurance company pays its portion, as well as for any co-payments required by your insurance company at the time of the visit.


If you are concerned about billing or have a question about acceptable insurance, please call one of the following numbers.


  •  For Physician Billing – (413) 794-5700


  •  For Hospital Billing – (413) 794-9999