Internal Medicine, Endocrinology, Diabetes, & Metabolism · Tucson, AZ
NPI
1225018856
Since 2006
Specialty
Internal Medicine, Endocrinology, Diabetes, & Metabolism
Code 207RE0101X
Group practices
2
Medicare group memberships
Hospitals
4
Hospital affiliations
5910 N la Cholla Blvd
Tucson, AZ, 85741
Phone (520) 297-0404
Groups this clinician bills Medicare through
Medicare paid, 2024
$118K
1,466 services
Medicare patients, 2024
791
Average age 73
Drug cost, 2024
$3.0M
6,823 prescriptions
Company payments, 2025
$158
From 9 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Alexander D Zwart was code 99214 (office e&m - established), 851 times for 642 patients. In total Alexander D Zwart billed 1,466 services in 23 codes, and Medicare paid $118K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2025-12-04.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 851 | 642 | $98.66 | $84K |
| 95251 Test - Miscellaneous | Office | 241 | 163 | $26.63 | $6,418 |
| 99213 Office E&M - Established | Office | 123 | 100 | $68.57 | $8,434 |
| 99204 Office E&M - New | Office | 43 | 43 | $129.34 | $5,562 |
| 99203 Office E&M - New | Office | 36 | 36 | $83.54 | $3,007 |
| 76536 Ultrasound - Nonspecific | Office | 35 | 35 | $83.99 | $2,940 |
| 99215 Office E&M - Established | Office | 25 | 24 | $143.09 | $3,577 |
| 92250 Angiography | Office | 11 | 11 | $29.26 | $322 |
By year: 2022 $166K for 2,426 services; 2023 $72K for 1,078 services; 2024 $118K for 1,466 services.
Medicare prescription drug claims, 2024
In 2024, the drug Alexander D Zwart prescribed most often to Medicare patients was Levothyroxine Sodium, with 1,022 prescriptions and refills. In total Alexander D Zwart wrote 6,823 Medicare prescriptions that cost $3.0M.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Levothyroxine Sodium Generic | 1,022 | 2,939 | 305 | $12K |
| Atorvastatin Calcium Generic | 303 | 863 | 94 | $2,902 |
| Methimazole Generic | 274 | 711 | 84 | $2,840 |
| Liothyronine Sodium Generic | 249 | 684 | 76 | $11K |
| Ozempic Semaglutide | 229 | 398 | 59 | $379K |
| Ezetimibe Generic | 188 | 498 | 55 | $3,061 |
| Synthroid Levothyroxine Sodium | 171 | 497 | 52 | $14K |
| Alendronate Sodium Generic | 165 | 408 | 46 | $869 |
| Metformin Hcl Generic | 155 | 458 | 53 | $1,463 |
| Metformin Hcl Er Metformin Hcl | 155 | 453 | 56 | $1,698 |
| Testosterone Cypionate Generic | 151 | 321 | 46 | $6,082 |
| Hydrocortisone Generic | 149 | 375 | 51 | $12K |
| Lisinopril Generic | 132 | 349 | 41 | $1,068 |
| Rosuvastatin Calcium Generic | 109 | 323 | 36 | $1,125 |
| Amlodipine Besylate Generic | 105 | 286 | 32 | $707 |
Brand drugs: 2,550 claims; generic drugs: 3,882 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Alexander D Zwart $158 ($158 in general payments such as food, travel and fees) from 9 companies. The largest payer was Neurocrine BioSciences, Inc. with $32.12.
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.