Obstetrics & Gynecology · Waterbury, CT
NPI
1134169204
Since 2006
Specialty
Obstetrics & Gynecology
Code 207V00000X
Group practices
1
Medicare group memberships
Hospitals
2
Hospital affiliations
134 Grandview Ave, Suite 210
Waterbury, CT, 06708
Phone (203) 754-2535
Groups this clinician bills Medicare through
Medicare paid, 2024
$13K
176 services
Medicare patients, 2024
72
Average age 67
Drug cost, 2024
$73K
462 prescriptions
Company payments, 2025
$60.84
From 2 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by John Kaczmarek was code G0101 (cervical or vaginal cancer screening; pelvic and clinical breast examination), 29 times for 29 patients. In total John Kaczmarek billed 176 services in 32 codes, and Medicare paid $13K.
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2010-09-07.
| Code |
|---|
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| G0101 Cervical or vaginal cancer screening; pelvic and clinical breast examination | Office | 29 | 29 | $42.73 | $1,239 |
| 82270 Immunoassay | Office | 23 | 23 | $4.29 | $98.67 |
| 77063 Mammography | Office | 12 | 12 | $55.93 | $671 |
| 77067 Mammography | Office | 12 | 12 | $139.23 | $1,671 |
| 99214 Office E&M - Established | Office | 12 | 11 | $107.16 | $1,286 |
| 81002 Clinical Chemistry | Office | 11 | 11 | $3.41 | $37.51 |
By year: 2022 $15K for 215 services; 2023 $14K for 212 services; 2024 $13K for 176 services.
Lab tests billed to Medicare, 2024
| Test code | Tests | Patients | Paid per test | Medicare paid |
|---|---|---|---|---|
| 82270 Immunoassay | 23 | 23 | $4.29 | $98.67 |
| 81002 Clinical Chemistry | 11 | 11 | $3.41 | $37.51 |
Medicare prescription drug claims, 2024
In 2024, the drug John Kaczmarek prescribed most often to Medicare patients was Estradiol, with 75 prescriptions and refills. In total John Kaczmarek wrote 462 Medicare prescriptions that cost $73K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Estradiol Generic | 75 | 164 | 19 | $818 |
| Triamcinolone Acetonide Generic | 32 | 79 | 20 | $371 |
| Oxybutynin Chloride Er Oxybutynin Chloride | 26 | 67 | Under 11 | $742 |
| Medroxyprogesterone Acetate Generic | 25 | 64 | 11 | $618 |
| Metronidazole Generic | 25 | 25 | 16 | $243 |
| Veozah Fezolinetant | 22 | 39 | Under 11 | $21K |
| Fluconazole Generic | 21 | 21 | 16 | $88.75 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 20 | 20 | 16 | $225 |
| Ozempic Semaglutide | 17 | 17 | Under 11 | $15K |
| Myrbetriq Mirabegron | 16 | 45 | Under 11 | $20K |
| Zolpidem Tartrate Generic | 13 | 26 | Under 11 | $136 |
| Clotrimazole-Betamethasone Clotrimazole/Betamethasone Dip | 12 | 12 | Under 11 | $194 |
Brand drugs: 90 claims; generic drugs: 372 claims; opioid claims: 11.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid John Kaczmarek $60.84 ($60.84 in general payments such as food, travel and fees) from 2 companies. The largest payer was Astellas Pharma US Inc with $44.39.
| Company | Payments | Amount |
|---|---|---|
| Astellas Pharma US Inc 4503.T | 2 | $44.39 |
| Mayne Pharma Commercial LLC | 1 | $16.45 |
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.