THE CHECK IN LLC
THE CHECK IN LLC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003766064, based in Waltham, MA. It is classified under Mental Health Counselor.
Getting there
Here is what surrounds this office in Waltham, based on OpenStreetMap data collected Oct 31, 2026. Parking is available about 386 ft away. There is EV charging 0.28 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 365 ft away, served by Main St @ Weston St. A pharmacy sits 0.33 mi from the entrance (Hannaford Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.28 mi away.
Getting here and what is nearby
Parking 172 ft ~1 min
Transit South St @ Weston St 290 ft ~2 min
Convenience Shell 287 ft ~2 min
962 Main Street
Parking 252 ft ~1 min
Pharmacy Walgreens 242 ft ~1 min
20 Weston Street
Convenience Maya Market 308 ft ~2 min
Restaurant Domenic's 316 ft ~2 min
Transit Main St opp Prospect Hill Rd 351 ft ~2 min
Transit Main St @ Weston St 365 ft ~2 min
Gas station Shell 362 ft ~2 min
962 Main Street
Parking 386 ft ~2 min
Restaurant Panera Bread 388 ft ~2 min
1030 Main Street, Waltham 02451
Mo-Th 06:00-21:30; Fr,Sa 06:00-22:00; Su 07:00-21:00
Restaurant Chipotle 395 ft ~2 min
Pharmacy Watch City Pharmacy 902 ft ~4 min
923 Main Street, Waltham 02451-7416
Mo-Fr 09:00-19:00; Sa 09:00-17:00
Convenience Veronica's Convenience 993 ft ~4 min
Grocery Kev's Kwik Market 1,026 ft ~4 min
909 Main Street, Waltham 02451
Coffee Mister Monut 0.28 mi ~6 min
873 Main Street, Waltham 02451
We-Sa 07:30-19:00; Su 08:00-17:00
EV charging 0.28 mi ~6 min
EV charging 0.28 mi ~6 min
Gas station Speedway 0.29 mi ~6 min
Pharmacy Hannaford Pharmacy 0.33 mi ~7 min
Grocery Hannaford 0.35 mi ~8 min
Gas station Mobil 0.42 mi ~9 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 Mental Health covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YM0800X
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 | 1003766064 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Jan 30, 2026 |
| Last updated | Jan 30, 2026 |
| Status | Active |
| Practice address |
37 WESTON ST APT 1 Waltham, MA 02453 (508) 838-4139 |
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 | 7 | 6 | 6 | 0 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 5 | 6 | 3 | 0 | 3 |
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.