Doctor profile · Federal record
Dr. Marci Neilson, MD
Internal Medicine Physician (CMS: Internal Medicine) · Rapid City, SD
- NPI 1164652939
- Accepts Medicare
- MIPS 93.3 / 100 · 2023
- 17 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
640 Flormann St
Rapid City, SD 577014679
(605) 718-3300
fax (605) 718-3426 - Mailing address
-
353 Fairmont Blvd, Atten Medical Staff Services
Rapid City, SD 577016000
Credentials & registration
- NPI registered
- July 2009 — 17 yrs on file
- Profile last updated
- January 24, 2013
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- South Dakota #8554
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1164652939. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
389
Distinct HCPCS
5
Medicare allowed
$36,861
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 184 | 96 | $94 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 81 | 58 | $64 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 66 | 66 | $127 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 43 | 31 | $136 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 15 | 15 | $8 |
In context: peer comparison
Among 17 peers in this city , average services per provider: 1,551. This provider delivers 0.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,273
Patients
339
Total drug cost
$18,360
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 191 | 45 | $2,139 |
| Atorvastatin Calcium | Generic | 147 | 38 | $1,425 |
| Losartan Potassium | Generic | 147 | 39 | $2,271 |
| Pantoprazole Sodium | Generic | 107 | 26 | $1,338 |
| Amlodipine Besylate | Generic | 84 | 23 | $1,057 |
| Rosuvastatin Calcium | Generic | 77 | 22 | $2,438 |
| Omeprazole | Generic | 76 | 26 | $1,151 |
| Metoprolol Succinate | Generic | 75 | 23 | $1,365 |
| Furosemide | Generic | 74 | 18 | $337 |
| Potassium Chloride | Generic | 65 | 16 | $1,693 |
Hospital affiliations
Frequently asked questions
What is Dr. Marci Neilson's medical specialty?
Dr. Marci Neilson practices Internal Medicine Physician in Rapid City, SD.
Where does Dr. Marci Neilson practice?
Dr. Marci Neilson practices at 640 Flormann St, Rapid City, SD 577014679. Office phone: 6057183300.
What is Dr. Marci Neilson's NPI?
Dr. Marci Neilson's National Provider Identifier (NPI) is 1164652939, issued by NPPES.
Does Dr. Marci Neilson accept Medicare assignment?
Yes. Dr. Marci Neilson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marci Neilson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.