Physician Profile
Carl W. Nissen, MD
Unclaimed ProfileAbout Dr. Nissen
Carl W. Nissen, MD is a healthcare provider in Hartford, CT specializing in orthopaedic surgery. Carl trained at University of Connecticut School of Medicine, graduating in 1990. Carl is also listed as specializing in pediatric orthopaedic surgery and orthopaedic sports medicine. According to Medicare claims data, the services billed most often include new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (860) 421-3233
- Email not available
Practice Locations
31 SEYMOUR ST STE 204
Hartford, CT 06106
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
Most searched conditions
- Arthritis
- Carpal tunnel
- Rotator cuff tear
- Sciatica
- Torn Achilles tendon
- Torn ACL
- Torn meniscus
Elbow, hand, and wrist
- Cubital tunnel syndrome
- Golfer's elbow
- Tennis elbow
- Trigger finger
- Wrist fracture
Foot and ankle
- Ankle fracture
- Ankle sprain
- Heel pain
Hip
- Hip labral tear
- Lateral hip pain and trochanteric bursitis
Shoulder
- Broken collarbone
- Frozen shoulder
- Shoulder impingement
- Dislocated joint
Sports and soft tissue
- Stress fracture
Trauma and bone
- Bone fractures
- Osteoporosis
Foot & Ankle
Spine
- Herniated disc
- Scoliosis
- Spinal stenosis
Procedures & services
Most searched procedures
- Achilles tendon repair
- ACL reconstruction
- Carpal tunnel surgery
- Hip replacement
- Knee replacement
Evaluation and nonsurgical
Arthroscopy
- Hip arthroscopy
- Rotator cuff repair
- Shoulder arthroscopy
Foot & Ankle
- Ankle Ligament Surgery
- Hammertoe Surgery
Foot and ankle
- Ankle arthroscopy
- Ankle fusion
- Bunion surgery
Hand & Wrist
- De Quervain's Release
Hand and upper extremity
- Cubital tunnel decompression
- Dupuytren contracture surgery
- Trigger finger release
Injections & Non-Surgical
- Knee Joint Injection
- PRP Injection
Injections & pain relief
- Cortisone Shot for Joint Pain
Joint replacement
- Partial knee replacement
- Reverse shoulder replacement
- Revision joint replacement
- Shoulder replacement
Knee
- Kneecap Stabilization Surgery
- Meniscus Surgery
Shoulder surgery
- Shoulder labrum repair
Trauma & Fractures
- Broken Hip Surgery
- Hardware Removal Surgery
Trauma and fixation
- Open reduction and internal fixation
Procedures Most Often Billed to Medicare
12 services · 12 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
12 | Less often than most 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 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
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 — 21 related providers in 3 groups
Other orthopaedic surgeons in Hartford 5
Same specialty, same city.
Trained at University of Connecticut School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at University of Connecticut School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Nissen?
Dr. Nissen is an orthopaedic surgeon in Hartford, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Orthopaedic Surgery”.
NPI registry
What is Dr. Nissen's address?
Dr. Nissen is listed at 31 Seymour St Ste 204, Hartford, CT 06106. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Nissen?
The number on file is (860) 421-3233. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Nissen's NPI number?
Dr. Nissen's National Provider Identifier is 1982601530. 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. Nissen train?
Dr. Nissen attended University of Connecticut School of Medicine, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Nissen been practicing?
Dr. Nissen has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Nissen perform?
According to Medicare billing data, Dr. Nissen the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Nissen confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Nissen. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.