Marie Duffin
Marie Duffin is a Mental Health Counselor in Champaign, IL, registered under NPI 1003320110.
Getting there
Here is what surrounds this office in Champaign, based on OpenStreetMap data collected Sep 18, 2026. Parking is available about 0.21 mi away. The nearest transit stop is 692 ft away, served by Devonshire & Peach.
Getting here and what is nearby
Parking 264 ft ~2 min
Transit Devonshire Center 639 ft ~3 min
Transit Devonshire & Peach 677 ft ~3 min
Transit Devonshire & Peach 692 ft ~3 min
Parking 0.20 mi ~5 min
Parking 0.21 mi ~5 min
Restaurant China King 0.34 mi ~7 min
2145 South Neil Street, Champaign 61820
Mo-Sa 10:30-21:30; Su 12:00-21:00
Restaurant Le Peep 0.34 mi ~7 min
2209 South Neil Street, Champaign 61820
We-Su 07:00-13:30
Convenience Haymakers 0.40 mi ~9 min
202 Devonshire Drive, Champaign 61820
Su-Sa 05:30-22:00
Gas station Haymakers Gas Station 0.40 mi ~8 min
Restaurant Biaggi's Ristorante Italiano 0.40 mi ~9 min
2235 South Neil Street, Champaign 61820
Su-Th 11:00-21:00; Fr,Sa 11:00-22:00
Grocery Harvest Market 0.40 mi ~8 min
2029 South Neil Street, Champaign 61820
Su-Sa 06:00-22:00
Hotel Home2 Suites by Hilton Champaign/Urbana 0.48 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 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-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 | 1003320110 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 28, 2017 |
| Last updated | Nov 28, 2017 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
701 DEVONSHIRE DR STE B16-18 Champaign, IL 61820 (217) 531-2360 |
| Mailing address |
1301 N CUNNINGHAM AVE Urbana, IL 61802 |
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 | 3 | 2 | 0 | 1 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 2 | 0 | 1 | 2 |
Sum = 40 · next multiple of 10 = 40 · check digit = 0 · actual last digit = 0
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.