Shishir Mathur, M.D.
Shishir Mathur, M.D. is a Cardiovascular Disease Physician in Glastonbury, CT, registered under NPI 1003016957. 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 Glastonbury, based on OpenStreetMap data collected Aug 29, 2026. Parking is available about 0.35 mi away. There is EV charging 0.39 mi from the office — useful if you are driving in from out of town. If you arrive early, there is a coffee shop 0.42 mi away.
Getting here and what is nearby
Grocery Trader Joe's 392 ft ~2 min
400 Hebron Avenue, Glastonbury 06033
Mo-Su 08:00-21:00
Parking 0.28 mi ~6 min
131 New London Turnpike, Glastonbury 06033
Restaurant Diamond Pub and Grill 0.28 mi ~6 min
Parking 0.29 mi ~6 min
131 New London Turnpike, Glastonbury 06033
Restaurant El Pollo Guapo 0.29 mi ~6 min
Restaurant Pick and Mix 0.29 mi ~6 min
Parking 0.35 mi ~7 min
141 Hebron Avenue, Glastonbury 06033
EV charging 0.39 mi ~8 min
Coffee Starbucks 0.42 mi ~9 min
Grocery Stop & Shop 0.47 mi ~10 min
55 Oak Street, Glastonbury 06033
Mo-Sa 07:00-22:00; Su 07:00-21:00
Grocery Whole Foods Market 0.49 mi ~10 min
55 Welles Street, Glastonbury 06033
Mo-Su 08:00-21:00
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 |
|---|---|---|
| 047888 | CT | Interventional Cardiology Physician |
| 047888 | CT | Cardiovascular Disease Physician primary |
This provider holds licence 047888 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 - Interventional Cardiology
- PAC ID
- 8022156645
- Enrollment ID
- I20091118000620
Medicare enrolment is recorded as approved under the provider type Practitioner - Interventional Cardiology. 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 Cardiovascular Disease covers
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms. NUCC Health Care Provider Taxonomy, code 207RC0000X
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 | |
|---|---|---|---|---|
| 207RI0011X | Interventional Cardiology Physician Interventional Cardiology | 047888 | CT | |
| 207RC0000X | Cardiovascular Disease Physician Cardiovascular Disease | 047888 | 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 | 1003016957 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 19, 2007 |
| Last updated | Jul 21, 2022 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | M.D. |
| Practice address |
27 SYCAMORE ST STE 400 Glastonbury, CT 06033 (860) 633-0500 Fax (860) 633-5250 |
| Other identifiers |
1003016957
· Medicaid (CT) |
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 | 0 | 1 | 6 | 9 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 1 | 3 | 9 | 1 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
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.