MASSACHUSETTS INTERLOCAL INSURANCE ASSOCIATION
MASSACHUSETTS INTERLOCAL INSURANCE ASSOCIATION is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003413725, based in Boston, MA. It is classified under Health Maintenance Organization.
Getting there
Here is what surrounds this office in Boston, based on OpenStreetMap data collected Sep 25, 2026. Parking is available about 0.22 mi away. There is EV charging 877 ft from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 491 ft away, served by Federal St @ Franklin St. A pharmacy sits 0.21 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 559 ft away.
Getting here and what is nearby
Transit Otis St @ Summer St 205 ft ~1 min
Restaurant Taco Bell 204 ft ~1 min
Coffee Starbucks 258 ft ~1 min
Restaurant Boston News Cafe 238 ft ~1 min
Mo-Fr 06:00-17:00
Restaurant Five Guys 244 ft ~1 min
58 Summer Street, Boston 02110
Mo-Fr 07:00-22:00; Sa,Su 08:00-22:00
Convenience 7-Eleven 326 ft ~2 min
Transit Franklin St @ Devonshire St 414 ft ~2 min
Pharmacy CVS Pharmacy 411 ft ~2 min
Mo-Fr 07:00-21:00; Sa 08:00-20:00; Su 09:00-19:00
Transit Federal St @ Franklin St 491 ft ~2 min
Coffee Starbucks 456 ft ~2 min
Coffee Caffè Nero 559 ft ~3 min
Mo-Fr 06:30-20:30; Sa,Su 07:00-20:30
Hotel Club Quarters Hotel 690 ft ~3 min
Parking 692 ft ~3 min
350 Washington Street, Boston 02110
Grocery Roche Bros. 673 ft ~3 min
8 Summer Street, Boston 02110
Mo-Sa 07:00-21:00; Su 08:00-20:00
EV charging ChargePoint 877 ft ~4 min
Hotel Hyatt Regency Boston 874 ft ~4 min
Parking The Garage at Post Office Square 881 ft ~4 min
Pharmacy CVS Pharmacy 971 ft ~4 min
Convenience 7-Eleven 997 ft ~4 min
Hotel The Godfrey Hotel Boston 978 ft ~4 min
Pharmacy CVS Pharmacy 0.21 mi ~5 min
Parking 0.22 mi ~5 min
109-153 Lincoln Street, Boston 02111
Convenience BNC Market 0.28 mi ~6 min
226 Washington Street
Grocery Jia Ho Supermarket 0.34 mi ~7 min
Grocery Pepper Palace 0.39 mi ~8 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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.
What Health Maintenance Organization covers
(1) A form of health insurance in which its members prepay a premium for the HMO's health services which generally include inpatient and ambulatory care. For the patient, an HMO means reduced out-of-pocket costs (i.e. no deductible), no paperwork (i.e. insurance forms), and only a small copayment for each office visit to cover the paperwork handled by the HMO; (2) A organization of health care personnel and facilities that provides a comprehensive range of health services to an enrolled population for a fixed sum of money paid in advance for a specified period of time. These health services include a wide variety of medical treatments and consults, inpatient and outpatient hospitalization, home health service, ambulance service, and sometimes dental and pharmacy services. The HMO may be organized as a group model, an individual practice association (IPA), a network model or a staff model. NUCC Health Care Provider Taxonomy, code 302R00000X
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003413725 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Oct 6, 2020 |
| Last updated | Oct 6, 2020 |
| Status | Active |
| Practice address |
1 WINTHROP SQ Boston, MA 02110 (617) 246-7272 |
| Mailing address |
23 BREAKWATER CT Marshfield, MA 02050 |
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 | 4 | 1 | 3 | 7 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 1 | 6 | 7 | 4 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
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.