TWO FISHES INC
TWO FISHES INC is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1659744100, based in Yankton, SD. The organization lists 3 taxonomy classifications, with Community/Retail Pharmacy recorded as primary.
Getting there
The practice address on file is 218 W 4TH ST, Yankton, SD 57078. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 1002033 | SD | Durable Medical Equipment & Medical… |
| 608 | NE | Pharmacy |
Licences are recorded in 2 states: SD, NE. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Dme Supplier - Pharmacy
- PAC ID
- 8022307172
Enrolled in Medicare 2 times, across 1 state:
| State | Enrollment ID | Provider type |
|---|---|---|
| South Dakota | O20160513000321 | Dme Supplier - Pharmacy |
| South Dakota | O20160623001613 | Part B Supplier - Mass Immunization (roster Biller Only) |
Medicare enrolment is recorded as approved under the provider type Dme Supplier - Pharmacy. There are 2 separate enrolment records. Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. 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.
Licensed in 2 states
This provider holds licences in 2 states: Nebraska and South Dakota. The practice address on file is in Yankton, SD, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 1002033
- Specialty
- Durable Medical Equipment & Medical…
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Community/Retail Pharmacy covers
A pharmacy where pharmacists store, prepare, and dispense medicinal preparations and/or prescriptions for a local patient population in accordance with federal and state law; counsel patients and caregivers (sometimes independent of the dispensing process); administer vaccinations; and provide other professional services associated with pharmaceutical care such as health screenings, consultative services with other health care providers, collaborative practice, disease state management, and education classes. NUCC Health Care Provider Taxonomy, code 3336C0003X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 3336C0003X | Community/Retail Pharmacy Community/Retail Pharmacy | — | — | primary |
| 332B00000X | Durable Medical Equipment & Medical Supplies | 1002033 | SD | |
| 333600000X | Pharmacy | 608 | NE |
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1659744100 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Nov 5, 2015 |
| Last updated | Oct 28, 2025 |
| Status | Active |
| Practice address |
218 W 4TH ST Yankton, SD 57078 (605) 665-8042 Fax (605) 665-1998 |
| Other identifiers |
10026543700
· Medicaid (NE) 2155146 · Other 1659744100 · Medicaid (SD) |
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 | 6 | 5 | 9 | 7 | 4 | 4 | 1 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 1 | 9 | 5 | 4 | 8 | 1 | 0 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
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.