Dr. Warren Orrin Ferris
MD | Rheumatologist | 49+ years Exp
Medicare Enrolled
3305 North Leisure World Boulevard, Silver Spring
Maryland, 20906
301-598-1554 301-558-1509
Maps & DirectionsDr. Warren Orrin Ferris is a Silver Spring, Maryland based rheumatologist with 49 years of experience in Rheumatology. He completed his graduation from University Of Missouri, Columbia School Of Medicine in 1976. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Dr. Warren Orrin Ferris is D31918 in Maryland.
Dr. Warren Orrin Ferris treat joint disease similar to orthopedists but do not perform surgeries. He diagnose and treat diseases of joints, muscle, bones and tendons which includes arthritis, back pain, muscle strains, common athletic injuries and 'collagen' diseases.
Complete Profile:
Dr. Warren Orrin Ferris speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
| Specialization: | Rheumatology |
| Credentials: | MD |
| Experience: | 49+ years |
| Medical School Attended: | University Of Missouri, Columbia School Of Medicine |
| Graduation Year: | 1976 |
| Gender: | Male |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 3305 North Leisure World Boulevard, Silver Spring,
Maryland, 20906 |
| Phone: | 301-598-1554 |
| Fax: | 301-558-1509 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| PAC ID: | 3577758515 |
| Enrollment ID: | I20101116000566 |
| NPI Number: | 1487744280 |
| NPI Enumeration Date: | 13 Oct, 2006 |
| NPI Last Update On: | 19 Jun, 2013 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Dr. Warren Orrin Ferris are as mentioned below.
| License Number | Specialization | State | Status | |
| D31918 | | Maryland | Primary | |
| D31918 | Rheumatology | Maryland | Secondary | |
Group Practice:
Group practices are practice of medicine by a group of physicians who share their premises and other resources. Following list states all the group name
with which Dr. Warren Orrin Ferris is associated with along with the number of members in that group.
| Organization Name (Group PAC ID) | Members |
| Medstar Medical Group Ii Llc (0547413825) | 1366 |
Other Medical Identifiers:
Other legacy medical identifiers associated with Dr. Warren Orrin Ferris such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
| Identifier | Type | State | Issuer |
| 607100700 | Medicaid | Maryland | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | 3305 North Leisure World Boulevard,
Silver Spring, Maryland |
| Zip: | 20906 |
| Phone Number: | 301-598-1554 |
| Fax Number: | 301-598-1569 |
Patients can reach Dr. Warren Orrin Ferris at
3305 North Leisure World Boulevard, Silver Spring, Maryland or can
call to book an appointment on 301-598-1554.
Comments/ Reviews:
Patients can read all the reviews posted for Dr. Warren Orrin Ferris below. You may also share your own experience like the quality of treatment, behavior, and overall care provided by Dr. Warren Orrin Ferris. It will help others make informed decisions.
** Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 December, 2025.