Internal Medicine, Rheumatology · Ames, IA
NPI
1134440886
Since 2010
Specialty
Internal Medicine, Rheumatology
Code 207RR0500X
Group practices
1
Medicare group memberships
Hospitals
5
Hospital affiliations
3500 University Blvd
Ames, IA, 50010
Phone (515) 239-4775
Groups this clinician bills Medicare through
Medicare paid, 2024
$1.3M
79,787 services
Medicare patients, 2024
611
Average age 74
Drug cost, 2024
$1.8M
3,778 prescriptions
Company payments, 2023
$26
From 1 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Melissa A Chiston was code J3111 (injection, romosozumab-aqqg, 1 mg), 11,760 times for 14 patients. In total Melissa A Chiston billed 79,787 services in 94 codes, and Medicare paid $1.3M.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2025-12-23.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| J3111 Injection, romosozumab-aqqg, 1 mg | Office | 11,760 | 14 | $8.67 | $102K |
| J0897 Injection, denosumab, 1 mg | Office | 3,300 | 35 | $20.54 | $68K |
| J1745 Injection, infliximab, excludes biosimilar, 10 mg | Office | 3,300 | 15 | $24.94 | $82K |
| 99214 Office E&M - Established | Office | 1,014 | 452 | $85.38 | $87K |
| 36415 Venipuncture Blood Collection | Office | 1,012 | 430 | $8.57 | $8,675 |
| G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's | Office | 924 | 427 | $11.62 | $11K |
| 80053 Clinical Chemistry | Office | 850 | 393 | $10.23 | $8,692 |
| 85025 Blood Count | Office | 792 | 351 | $7.53 | $5,963 |
| 86140 Clinical Chemistry | Office | 726 | 361 | $5.03 | $3,650 |
| 85652 Clinical Chemistry | Office | 577 | 314 | $2.62 | $1,509 |
| 96365 Intravenous Infusion, Hydration | Office | 273 | 67 | $41.29 | $11K |
| 83735 Clinical Chemistry | Office | 178 | 120 | $6.57 | $1,169 |
| 84100 Clinical Chemistry | Office | 178 | 119 | $4.65 | $828 |
| 83615 Clinical Chemistry | Office | 173 | 126 | $5.89 | $1,019 |
| 96372 Injection Administration | Office | 154 | 49 | $9.89 | $1,523 |
By year: 2022 $669K for 45,222 services; 2023 $747K for 50,547 services; 2024 $1.3M for 79,787 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 36415 Venipuncture Blood Collection | 1,012 | 430 | $8.57 | $8,675 |
| 80053 Clinical Chemistry | 850 | 393 | $10.23 | $8,692 |
| 85025 Blood Count | 792 | 351 | $7.53 | $5,963 |
| 86140 Clinical Chemistry | 726 | 361 | $5.03 | $3,650 |
| 85652 Clinical Chemistry | 577 | 314 | $2.62 | $1,509 |
| 84100 Clinical Chemistry | 178 | 119 | $4.65 | $828 |
| 83735 Clinical Chemistry | 178 | 120 | $6.57 | $1,169 |
| 83615 Clinical Chemistry | 173 | 126 | $5.89 | $1,019 |
| 85651 Clinical Chemistry | 150 | 74 | $4.16 | $624 |
| 82570 Clinical Chemistry | 116 | 79 | $4.93 | $572 |
Medicare prescription drug claims, 2024
In 2024, the drug Melissa A Chiston prescribed most often to Medicare patients was Methotrexate (Methotrexate Sodium), with 716 prescriptions and refills. In total Melissa A Chiston wrote 3,778 Medicare prescriptions that cost $1.8M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Methotrexate Methotrexate Sodium | 716 | 1,470 | 191 | $20K |
| Prednisone Generic | 543 | 779 | 166 | $3,415 |
| Hydroxychloroquine Sulfate Generic | 518 | 1,231 | 146 | $22K |
| Leflunomide Generic | 319 | 564 | 81 | $14K |
| Alendronate Sodium Generic | 168 | 460 | 58 | $1,408 |
| Gabapentin Generic | 160 | 323 | 36 | $2,027 |
| Allopurinol Generic | 137 | 355 | 33 | $809 |
| Sulfasalazine Generic | 123 | 220 | 26 | $2,840 |
| Meloxicam Generic | 75 | 119 | 28 | $226 |
| Celecoxib Generic | 75 | 168 | 19 | $2,156 |
| Colchicine Generic | 72 | 141 | 31 | $2,639 |
| Pilocarpine Hcl Generic | 65 | 103 | 20 | $5,122 |
| Humira(Cf) Pen Adalimumab | 62 | 67 | Under 11 | $540K |
| Folic Acid Generic | 62 | 165 | 17 | $655 |
| Duloxetine Hcl Generic | 49 | 81 | Under 11 | $740 |
Brand drugs: 409 claims; generic drugs: 3,357 claims; opioid claims: 34.
Money and other things of value reported by the companies
In 2023, drug and medical device companies paid Melissa A Chiston $26 ($26 in general payments such as food, travel and fees) from 1 company. The largest payer was Horizon Therapeutics plc with $26.
| Company | Payments | Amount |
|---|---|---|
| Horizon Therapeutics plc AMGN | 1 | $26 |
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.