Eric Tsu, PHARM D
Eric Tsu, PHARM D is a Pharmacist in Philadelphia, PA, registered under NPI 1003149188. 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 Philadelphia, based on OpenStreetMap data collected Sep 8, 2026. Parking is available about 0.37 mi away. There is EV charging 0.45 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.26 mi away.
Getting here and what is nearby
Parking Target parking 349 ft ~2 min
Convenience Sunoco 811 ft ~4 min
3670 Richmond Street, Philadelphia
Gas station Sunoco 770 ft ~3 min
Parking The Home Depot 929 ft ~4 min
Restaurant Applebee's 0.24 mi ~5 min
2535 Castor Avenue, Philadelphia 19134
Mo-Th,Su 11:30-23:00; Fr-Sa 11:30-24:00
Transit 0.26 mi ~6 min
Grocery ShopRite 0.26 mi ~6 min
3745 Aramingo Avenue, Philadelphia 19137
Mo-Su 06:00-23:00
Restaurant Burger King 0.34 mi ~7 min
2416 Castor Avenue, Philadelphia 19134-4604
06:00-21:00
Restaurant McDonald's 0.34 mi ~7 min
Convenience Speedway 0.35 mi ~8 min
Gas station Speedway 0.37 mi ~8 min
Parking 0.37 mi ~8 min
EV charging eVgo 0.41 mi ~9 min
Gas station Wawa 0.41 mi ~9 min
Convenience Wawa 0.42 mi ~9 min
EV charging Tesla Supercharger 0.45 mi ~9 min
Grocery Lidl 0.45 mi ~10 min
2290 East Butler Street, Philadelphia 19137
08:00-21:00
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 |
|---|---|---|
| RP41633 | PA | Pharmacist primary |
This provider holds licence RP41633 issued in PA. 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 Pharmacist covers
An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care. NUCC Health Care Provider Taxonomy, code 183500000X
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 | 1003149188 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 8, 2009 |
| Last updated | Sep 8, 2009 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | PHARM D |
| Practice address |
2701 CASTOR AVE Philadelphia, PA 19134 (215) 305-9051 |
| Mailing address |
24 FIRESIDE RD Red Bank, NJ 07701 |
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 | 4 | 9 | 1 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 4 | 9 | 1 | 7 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.