Doctor profile · Federal record
Dr. John Sharkey, NP-C
Adult Health Nurse Practitioner (CMS: Nurse Practitioner) · Gerontology Nurse Practitioner · Primary Care Nurse Practitioner · Greenville, SC
- NPI 1336532456
- Accepts Medicare
- 12 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
203 Mills Ave
Greenville, SC 296054019
(864) 271-1844
fax (864) 271-2147
Credentials & registration
- NPI registered
- March 2015 — 11 yrs on file
- Year of graduation
- 2014 — 12 yrs since
- Specialty taxonomy
- 363LA2200X — NUCC code
- State license (1)
- South Carolina #19347
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1336532456. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
792
Distinct HCPCS
7
Medicare allowed
$66,183
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 453 | 273 | $77 | |
36415 |
Insertion of needle into vein for collection of blood sample | 175 | 141 | $8 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 66 | 44 | $241 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 33 | 33 | $133 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 33 | 29 | $68 | |
90960 |
Dialysis services, 4 or more physician visits per month (20 years or older) | 16 | 14 | $294 | |
90962 |
Dialysis services, 1 physician visit per month (20 years or older) | 16 | 14 | $167 |
In context: peer comparison
Among 9 peers in this city , average services per provider: 539. This provider delivers 1.5× the peer median.Open Payments
Industry payments received
All-time total
$1,406
Transactions
62
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen Inc. | 13 | $315.11 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 7 | $196.72 | |
| AstraZeneca Pharmaceuticals LP | 9 | $159.27 | |
| CALLIDITAS THERAPEUTICS US INC. | 5 | $107.94 | |
| AKEBIA THERAPEUTICS INC | 4 | $105.02 | |
| Fresenius USA Marketing, Inc. | 5 | $85.49 | |
| Bayer Healthcare Pharmaceuticals Inc. | 4 | $70.57 | |
| Mallinckrodt Hospital Products Inc. | 2 | $59.76 | |
| GlaxoSmithKline, LLC. | 2 | $43.32 | |
| Novo Nordisk Inc | 2 | $43.15 | |
| Vifor Pharma, Inc. | 2 | $41.34 | |
| Ardelyx, Inc. | 2 | $36.26 | |
| Lilly USA, LLC | 2 | $32.75 | |
| Travere Therapeutics, Inc. | 2 | $27.09 | |
| Daiichi Sankyo Inc. | 1 | $26.82 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
598
Patients
141
Total drug cost
$117,854
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 98 | 35 | $584 |
| Carvedilol | Generic | 67 | 21 | $559 |
| Furosemide | Generic | 59 | 25 | $296 |
| Auryxia (Ferric Citrate) | Brand | 48 | 0 | $77,972 |
| Prosol (Parenteral Amino Acid 20% No.1) | Brand | 43 | 0 | $4,572 |
| Lisinopril | Generic | 42 | 18 | $252 |
| Torsemide | Generic | 33 | 12 | $1,075 |
| Allopurinol | Generic | 32 | 17 | $414 |
| Omeprazole | Generic | 31 | 0 | $217 |
| Sevelamer Carbonate | Generic | 28 | 0 | $6,057 |
Frequently asked questions
What is Dr. John Sharkey's medical specialty?
Dr. John Sharkey practices Adult Health Nurse Practitioner in Greenville, SC.
Where does Dr. John Sharkey practice?
Dr. John Sharkey practices at 203 Mills Ave, Greenville, SC 296054019. Office phone: 8642711844.
What is Dr. John Sharkey's NPI?
Dr. John Sharkey's National Provider Identifier (NPI) is 1336532456, issued by NPPES.
Does Dr. John Sharkey accept Medicare assignment?
Yes. Dr. John Sharkey accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Sharkey commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Dialysis services, 2-3 physician visits per month (20 years or older) (HCPCS 90961). Source: CMS Medicare Physician & Other Practitioners file.