Dr. Mark M Theiss
M.D. | Orthopedic Surgery | 51+ years Exp
Medicare Enrolled 3300 Gallows Rd, Falls Church
Virginia, 22042-3300
703-776-4001 703-776-7113
Maps & DirectionsDr. Mark M Theiss is a Falls Church, Virginia based orthopedic surgeon with 51 years of experience in Orthopedic Surgery. He completed his graduation from Georgetown University School Of Medicine in 1975. He is also affiliated with hospitals like Inova Fairfax Hospital. 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. Mark M Theiss is 0101036798 for Sports Medicine in Virginia.
Dr. Mark M Theiss is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means including the patients with musculoskeletal problems which include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. Patients with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system are also concerned.
Complete Profile:
Dr. Mark M Theiss 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: | Orthopedic - Orthopedic Surgery |
| Credentials: | M.D. |
| Experience: | 51+ years |
| Medical School Attended: | Georgetown University School Of Medicine |
| Graduation Year: | 1975 |
| Gender: | Male |
| Accepts Medicare Assignment: | Yes |
| Practice Address: | 3300 Gallows Rd, Falls Church,
Virginia, 22042-3300 |
| Phone: | 703-776-4001 |
| Fax: | 703-776-7113 |
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: | 5395883698 |
| Enrollment ID: | I20140617002262 |
| NPI Number: | 1669534350 |
| NPI Enumeration Date: | 16 Dec, 2006 |
| NPI Last Update On: | 29 Jan, 2022 |
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. Mark M Theiss are as mentioned below.
| License Number | Specialization | State | Status | |
| 0101036798 | Sports Medicine | Virginia | Primary | |
| 0101036798 | Orthopedic Surgery | Virginia | Secondary | |
Hospital Affiliation:
Surgeons are affiliated to many hospitals whom they worked with in the past or are presently working with. One surgeon can be affiliated to four to five hospitals at a time.
| Hospital Name (CCN) | State | Hospital Type |
| Inova Fairfax Hospital (490063) | Falls church, VA | Acute Care Hospital |
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. Mark M Theiss is associated with along with the number of members in that group.
| Organization Name (Group PAC ID) | Members |
| Inova Health Care Services (2466351093) | 1294 |
Other Medical Identifiers:
Other legacy medical identifiers associated with Dr. Mark M Theiss such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
| Identifier | Type | State | Issuer |
| 006499317 | Medicaid | Virginia | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Po Box 37174,
Baltimore, Maryland |
| Zip: | 21297-3174 |
| Phone Number: | 571-423-5699 |
| Fax Number: | 571-423-5698 |
Patients can reach Dr. Mark M Theiss at
3300 Gallows Rd, Falls Church, Virginia or can
call to book an appointment on 703-776-4001.
Frequently Asked Questions:
Below are some commonly asked questions about Dr. Mark M Theiss:
Dr. Mark M Theiss is an orthopedic surgeon specializing in Sports Medicine. He is trained in sports medicine which help to provide appropriate care for all structures of the musculoskeletal system directly affected by participation in sporting activity. This specialist is proficient in areas including conditioning, training and fitness, athletic performance and the impact of dietary supplements, pharmaceuticals, and nutrition on performance and health, coordination of care within the team setting utilizing other health care professionals, field evaluation and management, soft tissue biomechanics and injury healing and repair. Knowledge and understanding of the principles and techniques of rehabilitation, athletic equipment and orthotic devices enables the specialist to prevent and manage athletic injuries.
Dr. Mark M Theiss received his medical degree (M.D.) from Georgetown University School Of Medicine in 1975.
Dr. Mark M Theiss has approximately 51 years of medical experience.
Yes, Dr. Mark M Theiss accepts Medicare assignment, meaning provider participates in Medicare and accepts Medicare-approved amounts for eligible services.
Dr. Mark M Theiss is affiliated with Inova Fairfax Hospital where surgeon can provide orthopedic evaluations, surgical procedures, and follow-up care.
Yes, Dr. Mark M Theiss is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
Dr. Mark M Theiss practices at 3300 Gallows Rd, Falls Church, Virginia, 22042-3300.
To schedule an appointment with Dr. Mark M Theiss, please contact the office at 703-776-4001.
Comments/ Reviews:
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** Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 08 June, 2026.