Doctor profile · Federal record
Dr. John Hollowell, MD
Cardiovascular Disease Physician (CMS: Cardiovascular Disease (Cardiology)) · Plano, TX
- NPI 1083601520
- Accepts Medicare
- 41 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
6601 Preston RD
Plano, TX 750242502
(469) 326-3400
fax (469) 326-3499
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- June 10, 2013
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207RC0000X — NUCC code
- State license (1)
- Texas #J2605
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083601520. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
4,747
Distinct HCPCS
10
Medicare allowed
$278,165
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 1,336 | 913 | $14 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 988 | 684 | $122 | |
93010 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | 528 | 454 | $8 | |
93793 |
Anticoagulant management of patient taking warfarin | 447 | 225 | $11 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 376 | 344 | $86 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 283 | 277 | $185 | |
85610 |
Blood test, clotting time | 117 | 75 | $4 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 101 | 101 | $157 | |
36415 |
Insertion of needle into vein for collection of blood sample | 88 | 68 | $8 | |
93306 |
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | 72 | 72 | $66 |
In context: peer comparison
Among 22 peers in Plano Cardiovascular Disease Physician, average services per provider: 176. This provider delivers 27× the peer median.Open Payments
Industry payments received
All-time total
$1,324
Transactions
67
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novartis Pharmaceuticals Corporation | 11 | $203.52 | |
| Scpharmaceuticals INC. | 9 | $191.90 | |
| Merck Sharp & Dohme LLC | 8 | $161.71 | |
| Janssen Pharmaceuticals, INC | 6 | $149.16 | |
| Amgen INC. | 6 | $99.51 | |
| Azurity Pharmaceuticals, INC. | 5 | $97.56 | |
| Esperion Therapeutics, INC. | 5 | $88.92 | |
| Zoll Services LLC (A/K/A Zoll LifeCor Corp) | 4 | $73.23 | |
| Lexicon Pharmaceuticals, INC. | 3 | $56.17 | |
| Pfizer INC. | 2 | $48.65 | |
| Sanofi-Aventis U.S. LLC | 2 | $37.06 | |
| Novo Nordisk INC | 2 | $32.82 | |
| E.R. Squibb & Sons, L.L.C. | 2 | $32.68 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $30.19 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $21.41 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,942
Patients
1,491
Total drug cost
$949,756
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 657 | 190 | $5,548 |
| Rosuvastatin Calcium | Generic | 630 | 196 | $12,554 |
| Metoprolol Succinate | Generic | 514 | 166 | $8,993 |
| Atorvastatin Calcium | Generic | 482 | 146 | $7,574 |
| Eliquis (Apixaban) | Brand | 374 | 97 | $480,238 |
| Carvedilol | Generic | 373 | 112 | $5,237 |
| Xarelto (Rivaroxaban) | Brand | 281 | 73 | $369,870 |
| Candesartan Cilexetil | Generic | 278 | 84 | $36,218 |
| Spironolactone | Generic | 236 | 73 | $2,627 |
| Metoprolol Tartrate | Generic | 219 | 62 | $2,081 |
Hospital affiliations
Frequently asked questions
What is Dr. John Hollowell's medical specialty?
Dr. John Hollowell practices Cardiovascular Disease Physician in Plano, TX.
Where does Dr. John Hollowell practice?
Dr. John Hollowell practices at 6601 Preston RD, Plano, TX 750242502. Office phone: 4693263400.
What is Dr. John Hollowell's NPI?
Dr. John Hollowell's National Provider Identifier (NPI) is 1083601520, issued by NPPES.
Does Dr. John Hollowell accept Medicare assignment?
Yes. Dr. John Hollowell accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Hollowell commonly perform?
Top Medicare-reported procedures in 2023: Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (HCPCS 93000); Established patient office or other outpatient visit (HCPCS 99214); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010). Source: CMS Medicare Physician & Other Practitioners file.