Doctor profile · Federal record
Dr. John Wrenn, MD
Urology Physician (CMS: Urology) · Greensboro, NC
- NPI 1659372019
- Accepts Medicare
- 41 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
509 N Elam Ave Fl 2
Greensboro, NC 274031157
(336) 274-1114
fax (336) 232-5325
Credentials & registration
- NPI registered
- August 2005 — 21 yrs on file
- Profile last updated
- February 11, 2011
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 208800000X — NUCC code
- State license (1)
- North Carolina #33325
- Medicaid
- NC #8989277
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659372019. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,163
Distinct HCPCS
10
Medicare allowed
$118,934
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J9030 |
Bcg live intravesical instillation, 1 mg | 2,025 | 23 | $3 | |
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 1,425 | 11 | $0 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 483 | 314 | $120 | |
81003 |
Automated urinalysis test | 337 | 242 | $2 | |
81001 |
Manual urinalysis test with examination using microscope, automated | 221 | 145 | $3 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 137 | 125 | $86 | |
51798 |
Ultrasound measurement of bladder capacity after voiding | 136 | 99 | $10 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 71 | 71 | $156 | |
52000 |
Diagnostic exam of bladder and urethra using an endoscope | 68 | 53 | $226 | |
74018 |
X-ray of abdomen, 1 view | 50 | 42 | $28 |
In context: peer comparison
Among 10 peers in Greensboro Urology Physician, average services per provider: 276. This provider delivers 19× the peer median.Open Payments
Industry payments received
All-time total
$803
Transactions
37
Manufacturers
14
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Astellas Pharma US INC | 4 | $138.76 | |
| Dendreon Pharmaceuticals LLC | 7 | $129.96 | |
| Merck Sharp & Dohme LLC | 5 | $125.46 | |
| Sumitomo Pharma America, INC. | 6 | $118.39 | |
| Pfizer INC. | 6 | $116.61 | |
| Urogen Pharma, INC. | 1 | $31.62 | |
| Janssen Biotech, INC. | 1 | $23.29 | |
| Laborie Medical Technologies Corp. | 1 | $21.41 | |
| Olympus America INC. | 1 | $18.82 | |
| Accord Healthcare, INC. | 1 | $17.27 | |
| Abbvie INC. | 1 | $15.39 | |
| Antares Pharma, INC. | 1 | $15.25 | |
| Ferring Pharmaceuticals INC. | 1 | $15.22 | |
| Immunitybio, INC. | 1 | $15.22 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,564
Patients
837
Total drug cost
$282,318
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Tamsulosin Hcl | Generic | 742 | 225 | $13,488 |
| Finasteride | Generic | 658 | 178 | $9,300 |
| Myrbetriq (Mirabegron) | Brand | 168 | 42 | $145,953 |
| Alfuzosin Hcl ER (Alfuzosin Hcl) | Brand | 166 | 54 | $5,075 |
| Silodosin | Generic | 148 | 44 | $13,894 |
| Cephalexin | Generic | 116 | 59 | $1,691 |
| Gemtesa (Vibegron) | Brand | 102 | 25 | $63,419 |
| Doxazosin Mesylate | Generic | 81 | 24 | $1,635 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 78 | 45 | $665 |
| Solifenacin Succinate | Generic | 69 | 23 | $3,837 |
Hospital affiliations
Frequently asked questions
What is Dr. John Wrenn's medical specialty?
Dr. John Wrenn practices Urology Physician in Greensboro, NC.
Where does Dr. John Wrenn practice?
Dr. John Wrenn practices at 509 N Elam Ave Fl 2, Greensboro, NC 274031157. Office phone: 3362741114.
What is Dr. John Wrenn's NPI?
Dr. John Wrenn's National Provider Identifier (NPI) is 1659372019, issued by NPPES.
Does Dr. John Wrenn accept Medicare assignment?
Yes. Dr. John Wrenn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Wrenn commonly perform?
Top Medicare-reported procedures in 2023: Bcg live intravesical instillation, 1 mg (HCPCS J9030); Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.