Richard Day, MD
NPI 1417952243 · Family Medicine Physician · Sioux Falls, SD
Richard Day, MD is a Family Medicine Physician provider in Sioux Falls, SD (NPI 1417952243).
Provider details
- NPI number
- 1417952243
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 1255 (SD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
21 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 41 |
| Fluoxetine Hcl | 26 |
| Omeprazole | 21 |
| Furosemide | 18 |
| Donepezil Hcl | 14 |
| Verapamil Hclbrand: Verapamil Er | 13 |
| Famotidine | 13 |
| Trazodone Hcl | 13 |
| Amlodipine Besylate | 13 |
| Ropinirole Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-17
- Last updated
- 2013-11-08
Frequently asked questions
- What is Richard Day's NPI number?
- Richard Day's National Provider Identifier (NPI) is 1417952243, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Richard Day's specialty?
- Richard Day is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Richard Day located?
- Richard Day's practice location on file with NPPES is 7220 W 41st St, Sioux Falls, SD 57106-6028.
- What is Richard Day's phone number?
- The practice phone number listed in the NPPES registry for Richard Day is (605) 328-9600.
- Is Richard Day's NPI active?
- Yes — Richard Day's NPI (1417952243) is active in the NPPES registry as of the last update on 2013-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.