Doctor profile · Federal record
Dr. MARK CHANG, MD
Interventional Cardiology Physician (CMS: CARDIOVASCULAR DISEASE (CARDIOLOGY)) · Interventional Cardiology Physician · Cardiovascular Disease Physician · Cardiovascular Disease Physician · JOHNSON CITY, TN
- NPI 1174632475
- Accepts Medicare
- 39 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2428 KNOB CREEK ROAD
JOHNSON CITY, TN 37604
(423) 282-5054
fax (423) 230-5097 - Mailing address
-
105 W STONE DR, SUITE 6A
KINGSPORT, TN 376603365
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- December 3, 2014
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207RI0011X — NUCC code
- State licenses (2)
- Tennessee #28931 · Virginia #0101059203
- Medicaid (4)
- NC #790596V · NC #89014AT · TN #3373123 · KY #64001084
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1174632475. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,045
Distinct HCPCS
10
Medicare allowed
$55,888
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 332 | 248 | $8 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 240 | 223 | $13 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 205 | 170 | $119 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 75 | 73 | $84 | |
93458 |
Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist | 34 | 33 | $234 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 27 | 27 | $147 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 27 | 20 | $75 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 25 | 24 | $12 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 24 | 23 | $123 | |
93244 |
Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days | 18 | 18 | $22 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 81. This provider delivers 13× the peer median.Open Payments
Industry payments received
All-time total
$395
Transactions
22
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 9 | $152.83 | |
| Novartis Pharmaceuticals Corporation | 5 | $108.09 | |
| ATRICURE, INC. | 1 | $48.82 | |
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | 4 | $41.77 | |
| E.R. Squibb & Sons, L.L.C. | 1 | $15.77 | |
| Merck Sharp & Dohme LLC | 1 | $14.54 | |
| Amgen Inc. | 1 | $13.62 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,513
Patients
765
Total drug cost
$437,884
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Eliquis (Apixaban) | Brand | 355 | 77 | $320,398 |
| Metoprolol Tartrate | Generic | 262 | 76 | $1,891 |
| Metoprolol Succinate | Generic | 255 | 84 | $4,782 |
| Atorvastatin Calcium | Generic | 192 | 59 | $2,475 |
| Amlodipine Besylate | Generic | 182 | 61 | $1,221 |
| Losartan Potassium | Generic | 150 | 49 | $2,034 |
| Lisinopril | Generic | 137 | 45 | $779 |
| Rosuvastatin Calcium | Generic | 136 | 49 | $2,748 |
| Furosemide | Generic | 134 | 44 | $952 |
| Carvedilol | Generic | 132 | 43 | $1,610 |