Tiffany Tam, PHARMD
Tiffany Tam, PHARMD is an Oncology Pharmacist in Seattle, WA, registered under NPI 1003597949. 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 Seattle, based on OpenStreetMap data collected Oct 9, 2026. Parking is available about 0.39 mi away. There is EV charging 0.44 mi from the office (EVgo) — useful if you are driving in from out of town. The nearest transit stop is 421 ft away, served by Valley Street & Fairview Avenue North. A pharmacy sits 0.30 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.24 mi away.
Getting here and what is nearby
Parking 106 ft ~1 min
Hotel Residence Inn by Marriott Seattle Downtown/Lake Union 224 ft ~1 min
Parking 195 ft ~1 min
Transit Fairview Avenue North & Aloha Street 247 ft ~1 min
Transit Fairview Avenue North & Valley Street 266 ft ~2 min
Transit Valley Street & Fairview Avenue North 421 ft ~2 min
Restaurant Daniel's Broiler 600 ft ~3 min
809 Fairview Place North, Seattle 98109
Mo 11:30-14:30,17:00-21:00;Tu-Th 11:30-14:30,17:00-22:00; Fr 11:30-14:30,17:00-23:00; Sa 17:00-23:00; Su 17:00-21:00
Restaurant The 100 Pound Clam 860 ft ~4 min
Restaurant The White Swan Public House 923 ft ~4 min
1001 Fairview Avenue North, Seattle 98109
Mo 15:00-20:00; Tu-Fr 15:00-22:00; Sa 10:00-22:00; Su 10:00-20:00
Hotel Staybridge Suites - South Lake Union 1,027 ft ~4 min
Hotel EVEN Hotel Seattle - South Lake Union 0.20 mi ~5 min
Coffee Gourmondo at Mohai 0.21 mi ~5 min
Coffee 203ºF Coffee Company 0.23 mi ~5 min
Coffee Sprout 0.24 mi ~5 min
Grocery Mayuri International Foods 0.27 mi ~6 min
1001 Mercer Street, Seattle 98109
Mo-Su 10:00-22:00
Pharmacy Walgreens 0.30 mi ~7 min
Convenience The Bodega South Lake Union 0.31 mi ~7 min
709 Westlake Avenue North, Seattle 98109
Convenience Summit Foods 0.38 mi ~8 min
530 Summit Avenue East, Seattle 98102
Parking 0.39 mi ~8 min
300 Yale Avenue North, Seattle 98109
EV charging EVgo 0.44 mi ~9 min
Convenience Fresh Deli & Mart 0.47 mi ~10 min
209 Yale Avenue North, Seattle 98109
Mo-Fr 06:00-21:00; Sa 08:30-21:00; Su 11:00-21:00
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 |
|---|---|---|
| PH61085194 | WA | Oncology Pharmacist primary |
This provider holds licence PH61085194 issued in WA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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 Oncology covers
A licensed pharmacist who has demonstrated specialized knowledge and skill in developing, recommending, implementing, monitoring, and modifying pharmacotherapeutic plans to optimize outcomes in patients with malignant diseases. NUCC Health Care Provider Taxonomy, code 1835X0200X
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 | 1003597949 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 25, 2023 |
| Last updated | Jul 25, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | PHARMD |
| Practice address |
1100 FAIRVIEW AVE N Seattle, WA 98109 (206) 667-5000 |
| Mailing address |
2843 SW ADAMS ST UNIT A Seattle, WA 98126 |
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 | 9 | 7 | 9 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 9 | 5 | 9 | 8 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
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.