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Edit this profileAt a glance
- 6 Greenwich Office Park, Greenwich, CT 06831
About Dr. Kowalsky
Based in Greenwich, CT, Marc S. Kowalsky, MD is listed in the NPI registry under orthopaedic surgery. Marc graduated from Tufts University School of Medicine in 2003. Medicare claims data shows Marc provided 5,778 services to 1,250 patients. The services billed most often include injection, methylprednisolone acetate, 1 mg, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, and x-ray of shoulder, minimum of 2 views. NPI 1699941823 identifies this record in the national registry.
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
- (203) 869-1145
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
6 GREENWICH OFFICE PARK
Greenwich, CT 06831
Conditions Commonly Evaluated or Treated
Within Orthopedic Surgery 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
Pain
Pediatric and tumor
Spine
Most searched conditions
Elbow, hand, and wrist
Foot and ankle
Hip
Shoulder
Sports and soft tissue
Trauma and bone
Foot & Ankle
Procedures & services
Ankle surgery
Evaluation and nonsurgical
- Closed fracture treatment
- Joint injection or aspiration
- Orthopedic evaluation
- Cast placement and management
Foot & Ankle
Foot and ankle
- Ankle arthroscopy
- Ankle fusion
- Total ankle replacement
- Bunion surgery
Hand and upper extremity
- Wrist fracture fixation
- Cubital tunnel decompression
- Dupuytren contracture surgery
- Trigger finger release
Joint replacement
- Total hip replacement
- Total knee replacement
- Partial knee replacement
- Reverse shoulder replacement
- Revision joint replacement
- Shoulder replacement
Nerves & spine
Orthopedics
- ACL reconstruction consultation
- Carpal tunnel surgery consultation
- Hip replacement consultation
- Knee replacement consultation
- Torn rotator cuff consultation
Post-Op Care
Spine
Spine & Orthopedics
- Bunion Surgery Consultation
- Foot and Ankle Surgery Consultation
- Shoulder Surgery Consultation
- Surgical Hardware Removal Consultation
- Trigger Finger Release Consultation
Trauma and fixation
- External fracture fixation
- Intramedullary nailing
- Repair of fracture nonunion
- Open reduction and internal fixation
Tumor and pediatric
Most searched procedures
Arthroscopy
Hand & Wrist
Injections & Non-Surgical
Injections & pain relief
Knee
Shoulder surgery
Trauma & Fractures
Procedures Most Often Billed to Medicare
5,778 services · 1,250 patients · 19 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
178 | More often than most peers in Orthopaedic Surgery |
| Prosthetic repair of shoulder joint, total shoulder | Procedure | 23472 |
18 | As often as other peers in Orthopaedic Surgery |
| Relocation of one muscle of shoulder or upper arm | Procedure | 23395 |
15 | Less often than most peers in Orthopaedic Surgery |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
265 | More than most peers in Orthopaedic Surgery |
| X-ray of knee, 4 or more views | Imaging | 73564 |
130 | More often than most peers in Orthopaedic Surgery |
| Mri scan of arm joint without contrast | Imaging | 73221 |
34 | More often than most peers in Orthopaedic Surgery |
| X-ray of elbow, minimum of 3 views | Imaging | 73080 |
32 | More often than most peers in Orthopaedic Surgery |
| Mri scan of leg joint without contrast | Imaging | 73721 |
23 | As often as other peers in Orthopaedic Surgery |
| Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes | Treatment | 97110 |
207 | As often as other peers in Orthopaedic Surgery |
| Therapy procedure using manual technique, each 15 minutes | Treatment | 97140 |
145 | As often as other peers in Orthopaedic Surgery |
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.
Other orthopaedic surgeons at this location 5
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 26 related providers in 4 groups
Other orthopaedic surgeons in Greenwich 3
Same specialty, same city.
Trained at Tufts University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2003 at Tufts University School of Medicine 7
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 CT who bill this service to Medicare most often.
Common questions
What does Dr. Kowalsky specialize in?
Dr. Kowalsky is an orthopaedic surgeon in Greenwich, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Surgery”.
NPI registry
Where is Dr. Kowalsky located?
Dr. Kowalsky is listed at 6 Greenwich Office Park, Greenwich, CT 06831. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Kowalsky's phone number?
The number on file is (203) 869-1145. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Kowalsky?
Dr. Kowalsky's National Provider Identifier is 1699941823. 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
Where did Dr. Kowalsky go to medical school?
Dr. Kowalsky attended Tufts University School of Medicine, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Kowalsky have?
Dr. Kowalsky has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Kowalsky do most often?
According to Medicare billing data, Dr. Kowalsky performs procedures including aspiration and/or injection of fluid from large joint, prosthetic repair of shoulder joint, total shoulder and relocation of one muscle of shoulder or upper arm; reads or performs imaging such as x-ray of shoulder, minimum of 2 views and x-ray of knee, 4 or more views; provides treatments such as therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes and therapy procedure using manual technique, each 15 minutes, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Kowalsky's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Kowalsky. If this is you, claiming it is free.
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