Doctor profile · Federal record
Dr. Johnny Chang, M.D.
Specialist (CMS: Urology) · Torrington, CT
- NPI 1619975182
- Accepts Medicare
- MIPS 78.7 / 100 · 2023
- 29 yrs in practice
- Male
- No sanctions
Practice & contact
- Primary practice
-
538 Litchfield St, Suite 102
Torrington, CT 067906669
(860) 496-8990
fax (860) 496-7301
Credentials & registration
- NPI registered
- July 2005 — 21 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 174400000X — NUCC code
- State license (1)
- Connecticut #041177
- Medicaid
- CT #1411777
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1619975182. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,203
Distinct HCPCS
10
Medicare allowed
$123,564
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 413 | 356 | $69 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 378 | 283 | $102 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 100 | 100 | $140 | |
52000 |
Diagnostic exam of bladder and urethra using an endoscope | 83 | 70 | $84 | |
51720 |
Instillation of anti-cancer drug into bladder | 42 | 12 | $43 | |
74420 |
Imaging of urinary tract following injection of a contrast agent | 35 | 25 | $26 | |
55700 |
Biopsy of prostate gland | 21 | 20 | $136 | |
52332 |
Insertion of stent in ureter using an endoscope | 20 | 15 | $138 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 20 | 20 | $87 | |
50590 |
Shock wave crushing of kidney stones | 18 | 15 | $704 |
In context: peer comparison
Among 2 peers in Torrington Specialist, average services per provider: 90. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$584
Transactions
19
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Sumitomo Pharma America, INC. | 8 | $171.17 | |
| Regeneron Healthcare Solutions, INC. | 1 | $97.44 | |
| Astellas Pharma US INC | 1 | $77.97 | |
| Tolmar, INC. | 2 | $58.26 | |
| Antares Pharma, INC. | 2 | $57.13 | |
| Teleflex LLC | 1 | $32.15 | |
| Becton, Dickinson and Company | 1 | $26.91 | |
| Boston Scientific Corporation | 1 | $24.84 | |
| Pfizer INC. | 1 | $20.42 | |
| Axonics, INC. | 1 | $17.72 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
5,658
Patients
1,665
Total drug cost
$607,875
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Finasteride | Generic | 2,220 | 611 | $38,745 |
| Tamsulosin Hcl | Generic | 1,162 | 310 | $26,534 |
| Oxybutynin Chloride ER (Oxybutynin Chloride) | Brand | 579 | 132 | $21,680 |
| Dutasteride | Generic | 457 | 163 | $27,294 |
| Myrbetriq (Mirabegron) | Brand | 378 | 73 | $282,143 |
| Methenamine Hippurate | Generic | 192 | 43 | $17,067 |
| Gemtesa (Vibegron) | Brand | 170 | 62 | $168,254 |
| Alfuzosin Hcl ER (Alfuzosin Hcl) | Brand | 101 | 26 | $3,562 |
| Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) | Brand | 86 | 60 | $1,724 |
| Levofloxacin | Generic | 77 | 67 | $194 |
Frequently asked questions
What is Dr. Johnny Chang's medical specialty?
Dr. Johnny Chang practices Specialist in Torrington, CT.
Where does Dr. Johnny Chang practice?
Dr. Johnny Chang practices at 538 Litchfield St, Torrington, CT 067906669. Office phone: 8604968990.
What is Dr. Johnny Chang's NPI?
Dr. Johnny Chang's National Provider Identifier (NPI) is 1619975182, issued by NPPES.
Does Dr. Johnny Chang accept Medicare assignment?
Yes. Dr. Johnny Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Johnny Chang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.