Marisa Su, MD
Marisa Su, MD is a Pediatric Orthopaedic Surgery Physician in Greenwich, CT, registered under NPI 1578024592.
Getting there
The practice address on file is 500 W PUTNAM AVE FL 2, Greenwich, CT 06830. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| CSP.0090486 | CT | Pediatric Orthopaedic Surgery Physician primary |
This provider holds licence CSP.0090486 issued in CT. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Orthopedic Surgery
- PAC ID
- 8729316302
- Enrollment ID
- I20251017001921
Medicare enrolment is recorded as approved under the provider type Practitioner - Orthopedic Surgery. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Pediatric Orthopaedic Surgery covers
An orthopedic surgeon who has additional training and experience in diagnosing, treating and managing musculoskeletal problems in infants, children and adolescents. These may include limb and spine deformities (such as club foot, scoliosis); gait abnormalities (limping); bone and joint infections; broken bones. NUCC Health Care Provider Taxonomy, code 207XP3100X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1578024592 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 31, 2019 |
| Last updated | Sep 17, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
500 W PUTNAM AVE FL 2 Greenwich, CT 06830 (877) 925-3637 |
| Mailing address |
PO BOX 208071 New Haven, CT 06520 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 5 | 7 | 8 | 0 | 2 | 4 | 5 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 5 | 8 | 0 | 2 | 8 | 5 | 9 |
Sum = 68 · next multiple of 10 = 70 · check digit = 2 · actual last digit = 2
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.