Ishrat Rangwala, DMD
Ishrat Rangwala, DMD is a provider specialising in Dentist in Greenwich, CT, registered under NPI 1003255084. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Greenwich, based on OpenStreetMap data collected Sep 14, 2026. Parking is available about 0.25 mi away. If you arrive early, there is a coffee shop 0.35 mi away.
Getting here and what is nearby
Restaurant Bruce Park Grill 752 ft ~3 min
231 Bruce Park Avenue, Greenwich 06830
Parking 0.22 mi ~5 min
Parking 0.23 mi ~5 min
Parking 0.25 mi ~5 min
Restaurant Hinoki 0.32 mi ~7 min
363 Greenwich Avenue, Greenwich 06830
Restaurant Pressed Juicery 0.32 mi ~7 min
369A Greenwich Avenue, Greenwich 06830
Convenience Zyn's 0.33 mi ~7 min
345 Greenwich Avenue, Greenwich 06830
Coffee Starbucks 0.34 mi ~7 min
Coffee Gregory's 0.34 mi ~7 min
Coffee Le Pain Quotidien 0.35 mi ~7 min
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 |
|---|---|---|
| 22DI02544400 | NJ | Dentist |
| 10962 | CT | Dentist primary |
Licences are recorded in 2 states: NJ, CT. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
Licensed in 2 states
This provider holds licences in 2 states: Connecticut and New Jersey. The practice address on file is in Greenwich, CT, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Dentist covers
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist. NUCC Health Care Provider Taxonomy, code 122300000X
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 | |
|---|---|---|---|---|
| 122300000X | Dentist | 22DI02544400 | NJ | |
| 122300000X | Dentist | 10962 | CT | 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 | 1003255084 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 23, 2013 |
| Last updated | Mar 17, 2018 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | DMD |
| Practice address |
WILBUR PECK COURT Greenwich, CT 06830 (646) 379-6675 Fax (646) 379-6675 |
| Mailing address |
212 ROGER AVE Westfield, NJ 07090 |
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 | 2 | 5 | 5 | 0 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 5 | 1 | 0 | 7 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.