Internal Medicine, Endocrinology, Diabetes, & Metabolism · Sioux Falls, SD
NPI
1841266608
Since 2006
Specialty
Internal Medicine, Endocrinology, Diabetes, & Metabolism
Code 207RE0101X
Group practices
1
Medicare group memberships
Hospitals
5
Hospital affiliations
1315 S. Cliff Ave, Ste 3000
Sioux Falls, SD, 57105
Phone (605) 322-7600
Groups this clinician bills Medicare through
Medicare paid, 2024
$54K
875 services
Medicare patients, 2024
361
Average age 72
Drug cost, 2024
$1.2M
3,621 prescriptions
Company payments, 2025
$233
From 6 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Charles A Longo was code 99214 (office e&m - established), 145 times for 122 patients. In total Charles A Longo billed 875 services in 17 codes, and Medicare paid $54K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2013-12-13.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Facility | 145 | 122 | $58.67 | $8,507 |
| 99215 Office E&M - Established | Facility | 112 | 94 | $93.58 | $10K |
| 99214 Office E&M - Established | Office | 102 | 94 | $72.97 | $7,443 |
| 95251 Test - Miscellaneous | Facility | 98 | 71 | $24.22 | $2,373 |
| 99231 Hospital E&M - Subsequent | Facility | 67 | 27 | $36.37 | $2,437 |
| 99215 Office E&M - Established | Office | 65 | 59 | $106.96 | $6,952 |
| 99232 Hospital E&M - Subsequent | Facility | 64 | 25 | $54.97 | $3,518 |
| 99213 Office E&M - Established | Facility | 62 | 59 | $34.89 | $2,163 |
| 95251 Test - Miscellaneous | Office | 51 | 46 | $25.68 | $1,310 |
| 99213 Office E&M - Established | Office | 46 | 43 | $51.98 | $2,391 |
| 99222 Hospital E&M - Initial | Facility | 17 | 17 | $93.72 | $1,593 |
| 99205 Office E&M - New | Facility | 15 | 15 | $123.80 | $1,857 |
By year: 2022 $50K for 754 services; 2023 $54K for 876 services; 2024 $54K for 875 services.
Medicare prescription drug claims, 2024
In 2024, the drug Charles A Longo prescribed most often to Medicare patients was Levothyroxine Sodium, with 567 prescriptions and refills. In total Charles A Longo wrote 3,621 Medicare prescriptions that cost $1.2M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Levothyroxine Sodium Generic | 567 | 1,144 | 113 | $5,517 |
| Ozempic Semaglutide | 270 | 306 | 37 | $264K |
| Metformin Hcl Generic | 185 | 316 | 31 | $777 |
| Synthroid Levothyroxine Sodium | 160 | 307 | 31 | $12K |
| Novolog Flexpen Insulin Aspart | 111 | 177 | 33 | $29K |
| Metformin Hcl Er Metformin Hcl | 110 | 215 | 25 | $786 |
| Methimazole Generic | 99 | 185 | 19 | $678 |
| Novolog Insulin Aspart | 88 | 112 | 19 | $15K |
| Lantus Solostar Insulin Glargine,hum.Rec.Anlog | 79 | 152 | 18 | $8,165 |
| Jardiance Empagliflozin | 77 | 81 | Under 11 | $46K |
| Rosuvastatin Calcium Generic | 74 | 145 | 17 | $397 |
| Tresiba Flextouch U-100 Insulin Degludec | 66 | 121 | 19 | $39K |
| Trulicity Dulaglutide | 65 | 70 | Under 11 | $64K |
| Glipizide Generic | 63 | 104 | 12 | $445 |
| Ultra-Fine Mini Pen Needle Pen Needle, Diabetic | 62 | 89 | 13 | $6,071 |
Brand drugs: 1,680 claims; generic drugs: 1,673 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Charles A Longo $233 ($233 in general payments such as food, travel and fees) from 6 companies. The largest payer was Amgen Inc. with $68.55.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.