Doctor profile · Federal record
Dr. Nilanthi Gunawardane, M.D.
Dermatology Physician (CMS: Dermatology) · Orange, CA
- NPI 1124351051
- Accepts Medicare
- 17 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
2501 E Chapman Ave Ste 301
Orange, CA 928693204
(714) 628-3230 - Additional location
-
39400 Paseo Padre Pkwy
Fremont, CA 945382310
(510) 248-3045
Credentials & registration
- NPI registered
- September 2009 — 17 yrs on file
- Profile last updated
- July 14, 2023
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207N00000X — NUCC code
- State license (1)
- California #130772
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124351051. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
214
Distinct HCPCS
7
Medicare allowed
$17,513
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
17003 |
Destruction of precancer skin growth, 2-14 growths | 62 | 20 | $8 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 51 | 51 | $122 | |
17000 |
Destruction of precancer skin growth, 1 growth | 28 | 27 | $55 | |
11102 |
Biopsy of related skin growth, first growth | 23 | 23 | $108 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 19 | 17 | $98 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 18 | 18 | $180 | |
17110 |
Destruction of skin growth, 1-14 growths | 13 | 13 | $130 |
In context: peer comparison
Among 9 peers in this city , average services per provider: 175. This provider delivers 1.2× the peer median.Open Payments
Industry payments received
All-time total
$1,212
Transactions
49
Manufacturers
10
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABBVIE INC. | 18 | $376.04 | |
| GENZYME CORPORATION | 5 | $229.72 | |
| Janssen Biotech, Inc. | 8 | $204.64 | |
| Aurinia Pharma U.S., Inc. | 10 | $186.47 | |
| Amgen Inc. | 2 | $48.83 | |
| Mallinckrodt Hospital Products Inc. | 2 | $44.85 | |
| Kiniksa Pharmaceuticals International, plc | 1 | $33.95 | |
| Novartis Pharmaceuticals Corporation | 1 | $30.22 | |
| Regeneron Healthcare Solutions, Inc. | 1 | $30.22 | |
| Sandoz Inc. | 1 | $27.22 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
583
Patients
451
Total drug cost
$106,887
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clobetasol Propionate | Generic | 86 | 52 | $4,437 |
| Fluorouracil | Generic | 76 | 72 | $3,757 |
| Triamcinolone Acetonide | Generic | 53 | 51 | $586 |
| Betamethasone Diprop Augmented (Betamethasone/Propylene Glyc) | Brand | 50 | 34 | $2,181 |
| Fluocinonide | Generic | 41 | 33 | $1,570 |
| Calcipotriene | Generic | 39 | 38 | $3,226 |
| Ketoconazole | Generic | 36 | 27 | $540 |
| Mupirocin | Generic | 34 | 25 | $393 |
| Alclometasone Dipropionate | Generic | 30 | 23 | $993 |
| Clindamycin Phosphate | Generic | 28 | 19 | $859 |
Frequently asked questions
What is Dr. Nilanthi Gunawardane's medical specialty?
Dr. Nilanthi Gunawardane practices Dermatology Physician in Orange, CA.
Where does Dr. Nilanthi Gunawardane practice?
Dr. Nilanthi Gunawardane practices at 2501 E Chapman Ave Ste 301, Orange, CA 928693204. Office phone: 7146283230.
What is Dr. Nilanthi Gunawardane's NPI?
Dr. Nilanthi Gunawardane's National Provider Identifier (NPI) is 1124351051, issued by NPPES.
Does Dr. Nilanthi Gunawardane accept Medicare assignment?
Yes. Dr. Nilanthi Gunawardane accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nilanthi Gunawardane commonly perform?
Top Medicare-reported procedures in 2023: Destruction of precancer skin growth, 2-14 growths (HCPCS 17003); New patient office or other outpatient visit (HCPCS 99203); Destruction of precancer skin growth, 1 growth (HCPCS 17000). Source: CMS Medicare Physician & Other Practitioners file.