Eugene Barnhart
Eugene Barnhart is an Addiction (Substance Use Disorder) Counselor in Waterloo, IA, registered under NPI 1003580606.
Getting there
Here is what surrounds this office in Waterloo, based on OpenStreetMap data collected Oct 8, 2026. Parking is available about 354 ft away. There is EV charging 0.37 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 0.32 mi away. If you arrive early, there is a coffee shop 177 ft away.
Getting here and what is nearby
Convenience Sycamore Convenience 12 ft ~1 min
619 Sycamore Street, Waterloo 50703
Coffee Lincoln Perk Coffee House 177 ft ~1 min
Convenience Sycamore Convenience 146 ft ~1 min
619 Sycamore Street, Waterloo 50703
Su-Th 08:00-21:30; Fr-Sa 08:00-22:00
Parking 155 ft ~1 min
Parking 234 ft ~1 min
Restaurant Screaming Eagle American Bar and Grill 253 ft ~1 min
228 East 4th Street, Waterloo 50703
Restaurant Locals Bar & Grill 307 ft ~2 min
Parking 354 ft ~2 min
Restaurant El Patron Mexican 426 ft ~2 min
310 East 4th Street, Waterloo 50703
Transit 660 ft ~3 min
Gas station Cenex 0.23 mi ~5 min
428 Franklin Street, Waterloo 50703
Transit 0.27 mi ~6 min
Transit 0.32 mi ~7 min
Hotel Best Western Plus Executive Residency Waterloo & Cedar Falls 0.32 mi ~7 min
Hotel Econo Lodge 0.36 mi ~8 min
EV charging 0.37 mi ~8 min
Grocery Shwe Nyiko Market & Asian Foods 0.37 mi ~8 min
911 Commercial Street, Waterloo 50702
Grocery La Placita Mexican Store 0.42 mi ~9 min
321 West 4th Street, Waterloo 50701
Grocery Surplus Grocery 0.42 mi ~9 min
Convenience Star Mart 0.48 mi ~10 min
127 Jefferson Street, Waterloo 50701
Su-Th 06:00-03:00, Fr,Sa 06:00-04:00
Gas station BP 0.48 mi ~10 min
Gas station Kwik Star 0.51 mi ~11 min
1214 Franklin Street, Waterloo 50703
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 Addiction (Substance Use Disorder) covers
Definition to come... NUCC Health Care Provider Taxonomy, code 101YA0400X
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 | 1003580606 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 6, 2021 |
| Last updated | Aug 6, 2021 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
607 SYCAMORE ST Waterloo, IA 50703 (319) 232-5363 |
| Mailing address |
3362 UNIVERSITY AVE Waterloo, IA 50701 |
| Other identifiers |
1689734451
· Medicaid (IA) |
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 | 5 | 8 | 0 | 6 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 8 | 0 | 6 | 0 |
Sum = 44 · next multiple of 10 = 50 · check digit = 6 · actual last digit = 6
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.