Internal Medicine, Nephrology · Tempe, AZ
NPI
1831252469
Since 2006
Specialty
Internal Medicine, Nephrology
Code 207RN0300X
Group practices
1
Medicare group memberships
Hospitals
4
Hospital affiliations
2141 E Warner Rd, Suite 101
Tempe, AZ, 85284
Phone (480) 969-8714
Groups this clinician bills Medicare through
Medicare paid, 2024
$324K
7,980 services
Medicare patients, 2024
797
Average age 76
Drug cost, 2024
$788K
3,431 prescriptions
Company payments, 2025
$1,363
From 19 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Theodore Tzeremas was code J0881 (injection, darbepoetin alfa, 1 microgram (non-esrd use)), 2,261 times for 21 patients. In total Theodore Tzeremas billed 7,980 services in 50 codes, and Medicare paid $324K.
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2012-06-19.
| Code |
|---|
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| J0881 Injection, darbepoetin alfa, 1 microgram (non-esrd use) | Office | 2,261 | 21 | $2.34 | $5,297 |
| 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 | 739 | 395 | $11.97 | $8,847 |
| 99214 Office E&M - Established | Office | 718 | 419 | $86.23 | $62K |
| 99232 Hospital E&M - Subsequent | Facility | 435 | 164 | $58.14 | $25K |
| J0885 Injection, epoetin alfa, (for non-esrd use), 1000 units | Office | 423 | 17 | $6.49 | $2,744 |
| 80069 Clinical Chemistry | Office | 360 | 216 | $8.37 | $3,014 |
| 90960 ESRD Related Services (not dialysis) | Office | 283 | 42 | $266.55 | $75K |
| 99490 Chronic, Principal, and Transitional Care Management | Office | 278 | 77 | $48.27 | $13K |
| 36415 Venipuncture Blood Collection | Office | 242 | 179 | $5.88 | $1,423 |
| 84156 Clinical Chemistry | Office | 206 | 154 | $3.53 | $726 |
| 85027 Blood Count | Office | 203 | 160 | $6.18 | $1,255 |
| 82570 Clinical Chemistry | Office | 198 | 152 | $4.95 | $980 |
| 90966 ESRD Related Services (not dialysis) | Office | 196 | 33 | $215.39 | $42K |
| 99439 Chronic, Principal, and Transitional Care Management | Office | 194 | 78 | $36.95 | $7,168 |
| 99233 Hospital E&M - Subsequent | Facility | 179 | 100 | $89.00 | $16K |
By year: 2022 $314K for 4,807 services; 2023 $284K for 5,583 services; 2024 $324K for 7,980 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 80069 Clinical Chemistry | 360 | 216 | $8.37 | $3,014 |
| 36415 Venipuncture Blood Collection | 242 | 179 | $5.88 | $1,423 |
| 84156 Clinical Chemistry | 206 | 154 | $3.53 | $726 |
| 85027 Blood Count | 203 | 160 | $6.18 | $1,255 |
| 82570 Clinical Chemistry | 198 | 152 | $4.95 | $980 |
| 84550 Clinical Chemistry | 157 | 110 | $4.40 | $691 |
| 82652 Clinical Chemistry | 125 | 111 | $37.73 | $4,716 |
| 83970 Clinical Chemistry | 104 | 78 | $40.06 | $4,166 |
| 85018 Blood Count | 82 | 36 | $2.32 | $190 |
| 80048 Clinical Chemistry | 37 | 25 | $8.29 | $307 |
Medicare prescription drug claims, 2024
In 2024, the drug Theodore Tzeremas prescribed most often to Medicare patients was Allopurinol, with 360 prescriptions and refills. In total Theodore Tzeremas wrote 3,431 Medicare prescriptions that cost $788K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Allopurinol Generic | 360 | 918 | 116 | $3,421 |
| Losartan Potassium Generic | 344 | 941 | 130 | $3,721 |
| Furosemide Generic | 327 | 763 | 123 | $2,186 |
| Amlodipine Besylate Generic | 183 | 506 | 68 | $1,114 |
| Farxiga Dapagliflozin Propanediol | 177 | 317 | 47 | $170K |
| Lisinopril Generic | 175 | 459 | 55 | $1,172 |
| Calcitriol Generic | 152 | 390 | 60 | $3,078 |
| Nifedipine Er Nifedipine | 142 | 334 | 53 | $3,981 |
| Carvedilol Generic | 136 | 386 | 49 | $956 |
| Xphozah Tenapanor Hcl | 98 | 98 | 15 | $283K |
| Bumetanide Generic | 92 | 196 | 34 | $4,017 |
| Hydralazine Hcl Generic | 87 | 235 | 29 | $1,838 |
| Jardiance Empagliflozin | 84 | 141 | 24 | $80K |
| Sevelamer Carbonate Generic | 84 | 136 | 28 | $22K |
| Vitamin D2 Ergocalciferol (Vitamin D2) | 73 | 168 | 27 | $952 |
Brand drugs: 586 claims; generic drugs: 2,845 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Theodore Tzeremas $1,363 ($1,363 in general payments such as food, travel and fees) from 19 companies. The largest payer was Bayer Healthcare Pharmaceuticals Inc. with $280.
| Company | Payments | Amount |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. BAYN.DE | 17 | $280 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 12 | $215 |
| Vantive US Healthcare LLC | 1 | $105 |
| Calliditas Therapeutics US Inc. | 4 | $94.07 |
| Akebia Therapeutics Inc AKBA | 4 | $90.89 |
| AstraZeneca Pharmaceuticals LP AZN | 4 | $76.57 |
| Novartis Pharmaceuticals Corporation NVS | 3 | $67.37 |
| Otsuka America Pharmaceutical, Inc. 4578.T | 3 | $60.24 |
| Daiichi Sankyo Inc. 4568.T | 3 | $60.05 |
| OPKO Pharmaceuticals, LLC | 3 | $56.17 |
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.