Michael Diamondstone
Michael Diamondstone is a Pharmacist in Knoxville, TN, registered under NPI 1003191529. 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 Knoxville, based on OpenStreetMap data collected Sep 10, 2026. Parking is available about 0.37 mi away at Pembroke Garage. The nearest transit stop is 859 ft away, served by Locust St.@Main St. Sb. If you arrive early, there is a coffee shop 0.38 mi away.
Getting here and what is nearby
Hotel Hampton Inn Knoxville-Downtown 554 ft ~3 min
Transit Cumberland Ave EB @ Poplar Pl 721 ft ~3 min
Transit Locust St @ Main St 851 ft ~4 min
Transit Locust St.@Main St. Sb 859 ft ~4 min
Parking 0.26 mi ~6 min
Restaurant Calhoun’s on the River 0.28 mi ~6 min
400 Neyland Drive, 37902
Su-Th 11:00-22:00; Fr-Sa 11:00-23:00
Restaurant Calhoun’s on the River 0.28 mi ~6 min
Mo-Sa 11:00-23:00; Su 11:00-22:00
Coffee Starbucks 0.29 mi ~6 min
501 West Church Avenue, Knoxville 37902
Mo-Sa 06:30-19:00, Su 06:30-15:00
Hotel Hilton Knoxville 0.29 mi ~6 min
Hotel The Tennessean 0.30 mi ~7 min
Restaurant Yassin Falafel 0.30 mi ~6 min
Parking Locust Street Garage 0.35 mi ~7 min
540 Locust Street Southwest, Knoxville 37902
Parking Pembroke Garage 0.37 mi ~8 min
509 Walnut Street, Knoxville 37902
Coffee Pete's Coffee Shop 0.38 mi ~8 min
540 Union Avenue, Knoxville 37902
Mo-Fr 06:30-14:00; Sa-Su 07:00-14:00
Coffee Hello Tea House 0.38 mi ~8 min
Mo-Th 10:00-18:00; Fr 10:00-19:00; Sa 11:00-20:00
Convenience 13th STreet MArket & Deli 0.47 mi ~10 min
Grocery The Local Market 0.49 mi ~10 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 |
|---|---|---|
| 10527 | TN | Pharmacist primary |
This provider holds licence 10527 issued in TN. 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 | 1003191529 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 16, 2011 |
| Last updated | Oct 16, 2011 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
5006 N BROADWAY ST Knoxville, TN 37918 (865) 688-1812 |
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 | 9 | 1 | 5 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 9 | 2 | 5 | 4 |
Sum = 51 · next multiple of 10 = 60 · 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.