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- 3300 Gallows Rd, Falls Church, VA 22042
About Dr. Theiss
Mark M. Theiss, M.D. is a healthcare provider in Falls Church, VA specializing in sports medicine. Mark trained at Georgetown University School of Medicine, graduating in 1975. Mark is also listed as specializing in orthopaedic surgery and orthopaedic sports medicine. According to Medicare claims data, Mark cared for 961 Medicare patients across 3,553 services. The services billed most often include hyaluronan or derivitive, genvisc 850, for intra-articular injection, 1 mg, injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1669534350.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (703) 776-4001
- Email not available
Practice Locations
3300 GALLOWS RD
Falls Church, VA 22042
Conditions Commonly Evaluated or Treated
Within Sports Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Bone
- Bone Bruise
- Stress fracture
Bone injuries
- Stress Fracture Of The Spine
Chest and torso
- Bruised Ribs
Elbow & Arm
Foot & Ankle
- Achilles Tendon Pain
- Chronic Ankle Instability
- Heel pain
- Torn Achilles tendon
- Turf toe
Foot and ankle
Hand & Wrist
Hand and wrist
Hip & Thigh
- Groin Strain
- Hip labral tear
- Lateral hip pain and trochanteric bursitis
- Muscle strain
- Snapping Hip Syndrome
- Sports Hernia
Joint injuries
- Dislocated Kneecap
Joint pain
- Hip osteoarthritis
- Osteoarthritis
- Water On The Knee
Knee
Lower Leg
- Pulled Calf Muscle
- Shin Splints
Muscle and tendon injuries
- Charley Horse In Thigh
- Hip Pain and Tightness
Nerve pain
Pediatric & Teen Sports
- Little League Elbow
- Osgood-Schlatter Disease
- Sever's Disease
Shoulder
- Bicep tendonitis
- Frozen shoulder
- Shoulder impingement
- Shoulder instability and dislocation
Shoulder injuries
- Clavicle pain
- Shoulder Labrum Tear
Spine & Back
Sports health
- Athlete Low Energy and Overtraining
Sprains and tears
- High Ankle Sprain
- PCL tear
- Torn LCL
Procedures & services
Most searched procedures
- Concussion protocol
- Joint injections
- PRP therapy
- Ultrasound-guided injections
Bracing and support
- Patellar Taping
Consultations
- Sports Injury Second Opinion
Diagnostics
- Compartment Pressure Testing
- Joint Ultrasound
Exams & Clearance
- Return-To-Play Clearance
- Sports physical
Injections
- Bursa injection
- Shoulder Cortisone Injection
Injections & Pain Relief
- Bursa Aspiration And Injection
- Joint injection or aspiration
- Knee Fluid Drainage
- Knee Joint Injection
- Nerve Hydrodissection
- Trigger Point Injections
Injury management
- Splinting and temporary casting
Pain management
- Knee Nerve Ablation
Performance & Assessment
- Injury Prevention Screening
- Lactate Threshold Testing
- Running Gait Analysis
- VO2 Max Testing
Performance and testing
- DEXA Body Composition Scan
- Professional Bike Fitting
- Resting Metabolic Rate Test
- Running Form Coaching
Recovery therapy
- Hyperbaric Oxygen For Sports Injury
- Whole Body Cryotherapy
Regenerative & Advanced Therapy
- Prolotherapy
- Shockwave Therapy
- Stem Cell Therapy For Joints
- Tenex Procedure
Regenerative medicine
- Stem Cell Injections For Joint Pain
Rehab & Recovery
- Active release technique
- Blood flow restriction therapy
- Cupping Therapy
- Dry needling
- Exercise Prescription
- Muscle Scraping
- Sports Physical Therapy
Rehabilitation
- Aquatic Therapy
- Dynamic Neuromuscular Stabilization
Support & Bracing
- Custom Knee Bracing
- Custom orthotics
- Custom Walking Boot Fitting
- Foot Casting
- Kinesio Taping
Procedures Most Often Billed to Medicare
3,553 services · 961 patients · 15 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
216 | More often than most peers in Sports Medicine |
| Replacement of thigh bone and hip joint with prosthesis | Procedure | 27130 |
18 | As often as other peers in Sports Medicine |
| Replacement of knee joint, both sides of knee | Procedure | 27447 |
13 | Less often than most peers in Sports Medicine |
| X-ray of knee, 4 or more views | Imaging | 73564 |
154 | More often than most peers in Sports Medicine |
| X-ray of hip, 2-3 views | Imaging | 73502 |
73 | More often than most peers in Sports Medicine |
| X-ray of hip, 1 view | Imaging | 73501 |
36 | More often than most peers in Sports Medicine |
| X-ray of knee, 3 views | Imaging | 73562 |
19 | Less often than most peers in Sports Medicine |
| Hyaluronan or derivitive, genvisc 850, for intra-articular injection, 1 mg | Drug given | J7320 |
1,977 | Too few peers to compare |
| Injection, betamethasone acetate 3 mg and betamethasone sodium phosphate 3 mg | Drug given | J0702 |
460 | More often than most peers in Sports Medicine |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
91 | Less often than most peers in Sports Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Georgetown University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1975 at Georgetown University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in VA who bill this service to Medicare most often.
Common questions
What is Mark M. Theiss's specialty?
Mark M. Theiss is a sports medicine doctor in Falls Church, VA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Sports Medicine”.
NPI registry
Where can I find Mark M. Theiss?
Mark M. Theiss is listed at 3300 Gallows Rd, Falls Church, VA 22042. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Mark M. Theiss?
The number on file is (703) 776-4001. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mark M. Theiss's NPI number?
Mark M. Theiss's National Provider Identifier is 1669534350. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Mark M. Theiss's education?
Mark M. Theiss attended Georgetown University School of Medicine, graduating in 1975. This comes from the CMS National Downloadable File.
CMS public data
How long has Mark M. Theiss been practicing?
Mark M. Theiss has 51 years experience. Calculated from a graduation year of 1975, reported in the CMS National Downloadable File.
CMS public data
What is Mark M. Theiss known for?
According to Medicare billing data, Mark M. Theiss performs procedures including aspiration and/or injection of fluid from large joint, replacement of thigh bone and hip joint with prosthesis and replacement of knee joint, both sides of knee; reads or performs imaging such as x-ray of knee, 4 or more views and x-ray of hip, 2-3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Mark M. Theiss confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mark M. Theiss. If this is you, claiming it is free.
Guide.md
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