Megan Harrington
Megan Harrington is a Counselor in Waltham, MA, registered under NPI 1003687948.
Getting there
Here is what surrounds this office in Waltham, based on OpenStreetMap data collected Oct 11, 2026. Parking is available about 0.25 mi away at Central Square Parking Deck. There is EV charging 0.33 mi from the office (Crescent Street Lot Charging Station) — useful if you are driving in from out of town. The nearest transit stop is 568 ft away, served by Carter St opp Commuter Rail Station. If you arrive early, there is a coffee shop 0.43 mi away.
Getting here and what is nearby
Parking 45 ft ~1 min
Transit River St @ Jackson St 539 ft ~3 min
Transit River St @ Jackson St 564 ft ~3 min
Transit Carter St opp Commuter Rail Station 568 ft ~3 min
Restaurant Tap Tap Station Cafe 817 ft ~4 min
3 Carter Street
Convenience Quick Stop Variety 935 ft ~4 min
Restaurant Peshwari Kebabs 924 ft ~4 min
Restaurant Stazione di Federal 964 ft ~4 min
123;129 Moody Street
EV charging ChargePoint 0.20 mi ~5 min
Parking Embassy Parking Facility 0.20 mi ~4 min
14R Pine Street
Coffee Kung Fu Tea 0.23 mi ~5 min
246 Moody Street, Waltham 02453
Mo-Su 11:00-20:30
Coffee Cafe on the Common 0.24 mi ~5 min
EV charging Central Parking Lot Charging Station 0.24 mi ~5 min
Parking Central Square Parking Deck 0.25 mi ~6 min
26;32 Lexington Street
Gas station New World 0.26 mi ~6 min
Convenience Cronin's Market 0.28 mi ~6 min
12 Crescent Street, Waltham 02453
Mo-Sa 06:00-23:00, Su 07:00-22:00
Convenience Cronin's Market 0.28 mi ~6 min
12;14 Crescent Street
Grocery Waltham India Market 0.32 mi ~7 min
315 Moody Street, Waltham 02453
Mo-Th 10:00-20:30, Fr-Su 09:00-20:30
EV charging Crescent Street Lot Charging Station 0.33 mi ~7 min
Grocery Cowboy Supermarket 0.42 mi ~9 min
Coffee Common Good 0.43 mi ~9 min
419 Moody Street, Waltham 02453
Mo-Fr 07:00-17:00, Sa 08:00-17:00, Su 08:00-15:00
Grocery Patel Brothers 0.44 mi ~9 min
425 Moody Street
Gas station New World 0.46 mi ~10 min
Gas station Prestige 0.49 mi ~10 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 Counselor covers
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification. NUCC Health Care Provider Taxonomy, code 101Y00000X
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 | 1003687948 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 10, 2024 |
| Last updated | Jan 10, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
431 RIVER ST STE 1 Waltham, MA 02453 (781) 891-0555 |
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 | 6 | 8 | 7 | 9 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 8 | 5 | 9 | 8 |
Sum = 62 · next multiple of 10 = 70 · check digit = 8 · actual last digit = 8
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.