Geetanjali Chatterjee, NP
Geetanjali Chatterjee, NP is a Nurse Practitioner in Wilmington, DE, registered under NPI 1003155623. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Wilmington, based on OpenStreetMap data collected Sep 8, 2026. Parking is available about 0.20 mi away at City Center Wilmington Parking. A pharmacy sits 0.39 mi from the entrance (Market Street Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.39 mi away.
Getting here and what is nearby
Parking 90 ft ~1 min
Parking 144 ft ~1 min
Hotel Courtyard Wilmington Downtown 1,025 ft ~4 min
Parking City Center Wilmington Parking 0.20 mi ~5 min
208 West 12th Street, Wilmington
Hotel Residence Inn 0.26 mi ~6 min
Hotel Sheraton Suites Wilmington Downtown 0.27 mi ~6 min
Restaurant Evelyn’s Soul Food 0.27 mi ~6 min
6 East 15th Street
Restaurant Le Cavalier 0.32 mi ~7 min
Pharmacy CVS Pharmacy 0.36 mi ~8 min
Coffee Faire Cafe 0.39 mi ~8 min
216 West 9th Street
Mo,Su off; Tu-Fr 07:00-18:00; Sa 08:00-15:00
Pharmacy Market Street Pharmacy 0.39 mi ~8 min
Convenience Dash In 0.40 mi ~9 min
Gas station Shell 0.40 mi ~8 min
Restaurant China King Restaurant 0.40 mi ~9 min
2003 North Market Street, Wilmington 19802
Mo-Sa 11:00-22:45; Tu,Su 12:00-22:45; We off
Convenience Ho Ho Mart 0.48 mi ~10 min
2127 North Market Street, Wilmington 19802
Mo-Sa 11:00-19:00; Tu off; Su 12:00-19:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| LB-0000272 | DE | Critical Care Medicine Nurse Practitioner |
| LB-0000272 | DE | Nurse Practitioner primary |
This provider holds licence LB-0000272 issued in DE. 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 - Nurse Practitioner
- PAC ID
- 5799920948
- Enrollment ID
- I20130319000019
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. 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 Nurse Practitioner covers
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners. NUCC Health Care Provider Taxonomy, code 363L00000X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 363LC0200X | Critical Care Medicine Nurse Practitioner Critical Care Medicine | LB-0000272 | DE | |
| 363L00000X | Nurse Practitioner | LB-0000272 | DE | primary |
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 | 1003155623 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 1, 2013 |
| Last updated | Nov 13, 2018 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | NP |
| Practice address |
1400 N WASHINGTON ST STE 300 Wilmington, DE 19801 (302) 320-5700 |
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 | 0 | 0 | 3 | 1 | 5 | 5 | 6 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 5 | 1 | 6 | 4 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.