Mary Cain, ARNP, MC
Mary Cain, ARNP, MC is a Psychiatric/Mental Health Nurse Practitioner in Shoreline, WA, registered under NPI 1003187352. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Shoreline, based on OpenStreetMap data collected Sep 10, 2026. Parking is available about 480 ft away. The nearest transit stop is 0.23 mi away, served by 15th Ave NE & NE 160th St. If you arrive early, there is a coffee shop 0.43 mi away.
Getting here and what is nearby
Transit 15th Ave NE & NE 155th St 96 ft ~1 min
Transit 15th Ave NE & NE 155th St 271 ft ~2 min
Parking 312 ft ~2 min
Parking 332 ft ~2 min
Parking 480 ft ~2 min
Transit 15th Ave NE & NE 160th St 0.23 mi ~5 min
Grocery Enat Market 0.41 mi ~9 min
Coffee Coffee Hut 0.43 mi ~9 min
Restaurant Chen's Shanghai 0.44 mi ~9 min
14602 15th Avenue Northeast, Shoreline 98155
Restaurant Wet-Mex 0.45 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
| Licence | State | Specialty |
|---|---|---|
| AP30005320 | WA | Psychiatric/Mental Health Nurse… primary |
This provider holds licence AP30005320 issued in WA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Nurse Practitioner
- PAC ID
- 0749425429
- Enrollment ID
- I20241112003503
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.
What Psychiatric/Mental Health covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LP0808X
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 | 1003187352 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 18, 2012 |
| Last updated | Jan 18, 2012 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | ARNP, MC |
| Practice address |
1424 NE 155TH ST STE 205 Shoreline, WA 98155 (206) 361-2379 Fax (206) 523-2978 |
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 | 1 | 8 | 7 | 3 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 8 | 5 | 3 | 1 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.