A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
Learn more about Dr. Warren Ferris:
View the full profile to get information on:
- What's important to you
View full profile
- Currently 2 of 4 stars
The overall average patient rating of Dr. Warren Ferris is Satisfactory.
|Ease of Appointment||
|Spends Time with Me||
|Follows Up After Visit||
Specialties & Research
Dr. Warren Ferris, MD is board certified in Internal Medicine and Rheumatology.
- He has special expertise in 5 areas:
- Hip Osteoarthritis
- Knee Osteoarthritis
- Osteoarthritis (Hand and Wrist)
- Rheumatic Diseases
Education & Awards
Dr. Ferris graduated from Columbia University, New York. He has 1 awards.
Dr. Ferris has 1 hospital affiliations:
- Montgomery General Hospital Inc
Accepted Insurance Plans
Dr. Ferris accepts these health insurances in at least one office:
- CareFirst - 1 plan
- Aetna - 3 plans