Dargan Mayer, PHARMD
Dargan Mayer, PHARMD is a Pharmacist in Columbia, SC, registered under NPI 1003129131.
Getting there
Here is what surrounds this office in Columbia, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 599 ft away. The nearest transit stop is 1,029 ft away, served by Blossom Laurens Westbound. A pharmacy sits 909 ft from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 913 ft away.
Getting here and what is nearby
Convenience Shell 332 ft ~2 min
Gas station Shell 333 ft ~2 min
Parking 375 ft ~2 min
Parking 436 ft ~2 min
Restaurant Andy's Deli 425 ft ~2 min
2005 Greene Street, Columbia 29205
Restaurant Touchdowns 526 ft ~2 min
715 Harden Street, Columbia 29205
Restaurant Chick-fil-A 544 ft ~3 min
901 Harden Street, Columbia 29205
Mo-Sa 06:30-22:00
Coffee Drip Coffee 567 ft ~3 min
Parking 599 ft ~3 min
Grocery The Gourmet Shop 584 ft ~3 min
724 Saluda Avenue, Columbia 29205
Transit Laurens College North 771 ft ~3 min
Transit Laurens College South 860 ft ~4 min
Convenience College Mart 820 ft ~4 min
Coffee The Local Buzz 882 ft ~4 min
Coffee The Flying Biscuit Cafe 913 ft ~4 min
936 Harden Street, Columbia 29205
Mo-Fr 07:00-14:00; Sa,Su 07:00-15:00
Pharmacy Walgreens 909 ft ~4 min
Transit Blossom Laurens Westbound 1,029 ft ~4 min
Grocery Food Lion 0.22 mi ~5 min
Gas station Shell 0.36 mi ~8 min
Convenience Sam's Grocery 0.37 mi ~8 min
2341 Pendleton Street, Columbia 29205
Hotel Graduate by Hilton Columbia, S.C. 0.47 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 |
|---|---|---|
| 12186 | SC | Pharmacist primary |
This provider holds licence 12186 issued in SC. 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 | 1003129131 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 18, 2010 |
| Last updated | Jul 18, 2010 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | PHARMD |
| Practice address |
818 HARDEN ST Columbia, SC 29205 (803) 799-0043 |
| Mailing address |
1014 E SELWOOD CT Columbia, SC 29212 |
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 | 2 | 9 | 1 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 2 | 9 | 1 | 6 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
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.