Shanzay Haider, M.D.
Shanzay Haider, M.D. is an Internal Medicine Physician in Waterbury, CT, registered under NPI 1003270299. 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 Waterbury, based on OpenStreetMap data collected Sep 9, 2026. Parking is available about 0.31 mi away. The nearest transit stop is 1,005 ft away, served by East Main & Cherry. A pharmacy sits 0.30 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.31 mi away.
Getting here and what is nearby
Parking 289 ft ~2 min
Parking 589 ft ~3 min
326 East Main Street, Waterbury 06702
Transit 861 ft ~4 min
Transit East Main & Cherry 967 ft ~4 min
Transit East Main & Cherry 1,005 ft ~4 min
Hotel Courtyard Marriott 0.24 mi ~5 min
Convenience Bank Street Grand News 0.26 mi ~6 min
156 Bank Street, Waterbury 06702
Restaurant Subway 0.28 mi ~6 min
114 Grand Street, Waterbury 06702
Mo-Fr 09:00-20:00; Sa 10:30-20:00
Restaurant McDonald's 0.29 mi ~6 min
Pharmacy Walgreens 0.30 mi ~6 min
Restaurant The Art of YUM 0.30 mi ~7 min
146 Grand Street, Waterbury 06702
Coffee The John Bale Book Co. 0.31 mi ~7 min
158 Grand Street, Waterbury 06702
Parking 0.31 mi ~7 min
33 Center Street, Waterbury 06702
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 |
|---|---|---|
| 63638 | CT | Internal Medicine Physician primary |
This provider holds licence 63638 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 - Endocrinology
- PAC ID
- 3375836109
- Enrollment ID
- I20240212001454
Medicare enrolment is recorded as approved under the provider type Practitioner - Endocrinology. 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 Internal Medicine covers
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs. NUCC Health Care Provider Taxonomy, code 207R00000X
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 | |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | 63638 | CT | primary |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | CT |
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 | 1003270299 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 13, 2016 |
| Last updated | Sep 3, 2020 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | M.D. |
| Practice address |
56 FRANKLIN ST Waterbury, CT 06706 (203) 709-8685 |
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 | 7 | 0 | 2 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 7 | 0 | 2 | 9 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.