Ryan Tateishi
Ryan Tateishi is a Psychiatric/Mental Health Nurse Practitioner in Tigard, OR, registered under NPI 1003315045. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Tigard, based on OpenStreetMap data collected Sep 18, 2026. Parking is available about 692 ft away. There is EV charging 0.39 mi from the office (Electrify America) — useful if you are driving in from out of town. The nearest transit stop is 348 ft away, served by Southwest 68th & Baylor. If you arrive early, there is a coffee shop 0.46 mi away.
Getting here and what is nearby
Transit Southwest 68th & Clinton 210 ft ~1 min
Parking 268 ft ~2 min
Transit Southwest 68th & Freeway Entrance/Dartmouth 335 ft ~2 min
Transit Southwest 68th & Baylor 348 ft ~2 min
Hotel Hampton Inn & Suites Portland Tigard 469 ft ~2 min
Parking 530 ft ~3 min
Parking 692 ft ~3 min
Coffee Cup Coffee and Boba 0.23 mi ~5 min
Grocery WinCo Foods 0.35 mi ~8 min
7501 Southwest Dartmouth Street, Tigard 97223
open; Nov Th[4] 00:00-15:00; Nov Th[4] +1 day 07:00-24:00; Dec 24 00:00-18:00; Dec 25 off; Dec 26 07:00-24:00
Restaurant Kyuramen 0.38 mi ~8 min
7500 Southwest Dartmouth Street, Tigard 97223
EV charging Electrify America 0.39 mi ~8 min
Restaurant Mashita Teriyaki 0.40 mi ~8 min
7500 Southwest Dartmouth Street, Tigard 97223
Restaurant McDonald's 0.40 mi ~8 min
11201 Southwest 72nd Avenue, Tigard 97223
07:00-21:00
Coffee Black Rock 0.43 mi ~9 min
Coffee Well & Good Café 0.46 mi ~10 min
7357 Southwest Beveland Road, Tigard 97223
Mo-Fr 06:00-16:00; Sa-Su 08:00-14:00
Grocery Walmart Supercenter 0.48 mi ~10 min
7600 Southwest Dartmouth Street, Tigard 97223
Mo-Su 06:00-23:00
Grocery Fred Meyer 0.52 mi ~11 min
11565 Southwest Pacific Highway, Tigard 97223
07:00-23:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 201900796NP-PP | OR | Psychiatric/Mental Health Nurse… primary |
| RN60364120 | WA | Psychiatric/Mental Health Registered Nurse |
| 201900796NP-PP | OR | Nurse Practitioner |
| 201900796NP | OR | Psychiatric/Mental Health Nurse… |
Licences are recorded in 2 states: OR, WA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Nurse Practitioner
- PAC ID
- 2062753726
- Enrollment ID
- I20190405000277
Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
Licensed in 2 states
This provider holds licences in 2 states: Oregon and Washington. The practice address on file is in Tigard, OR, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 201900796NP-PP
- Specialty
- Psychiatric/Mental Health Nurse…
- Licence
- RN60364120
- Specialty
- Psychiatric/Mental Health Registered…
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Psychiatric/Mental Health covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LP0808X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 363LP0808X | Psychiatric/Mental Health Nurse Practitioner Psychiatric/Mental Health | 201900796NP-PP | OR | primary |
| 163WP0808X | Psychiatric/Mental Health Registered Nurse Psychiatric/Mental Health | RN60364120 | WA | |
| 363L00000X | Nurse Practitioner | 201900796NP-PP | OR | |
| 363LP0808X | Psychiatric/Mental Health Nurse Practitioner Psychiatric/Mental Health | 201900796NP | OR |
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 | 1003315045 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 5, 2018 |
| Last updated | Mar 25, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
11740 SW 68TH PKWY STE 200 Tigard, OR 97223 (425) 477-4216 |
| Mailing address |
117 NW 8TH ST Mcminnville, OR 97128 |
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 | 1 | 5 | 0 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 1 | 1 | 0 | 8 |
Sum = 45 · next multiple of 10 = 50 · 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.