1. Home
  2. Directory
  3. California
  4. Orange
  5. Dermatology
  6. NPI Profile

NILANTHI GUNAWARDANE M.D.
NPI 1124351051
Dermatology in Orange, CA

Active since September 10, 2009PECOS EnrolledAccepts Medicare Assignment
2501 E CHAPMAN AVE STE 301, ORANGE, CA 92869(714) 628-3230 Get Directions Write a Review

NPPES record last updated: July 14, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 14, 2023, Jan 13, 2023, Dec 15, 2021 (3 updates tracked since 2021).

About Nilanthi Gunawardane M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NILANTHI GUNAWARDANE M.D. (NPI 1124351051) is an individual dermatology provider in Orange, California, licensed in California (130772) and active in the NPI registry since September 2009. She is enrolled in Medicare PECOS, maintains a secondary practice location in Fremont, and is a graduate of Harvard Medical School (2009).

NPPES Registry Identity

NPI1124351051
Entity TypeIndividualFemale
Primary Taxonomy207N00000X
Provider Legal NameNILANTHI GUNAWARDANECredential: M.D.
Location Address2501 E CHAPMAN AVE STE 301Orange, CA 92869-3204
Mailing Address2501 E Chapman Ave Ste 301Orange, CA 92869-3204 · (714) 628-3230
Phone(714) 628-3230
Sole ProprietorNo
Medical School CMSHarvard Medical SchoolGraduated 2009
Enumeration DateSeptember 10, 2009
Last NPPES UpdateJuly 14, 20233 updates tracked since enumeration
NPPES CertifiedJuly 14, 2023
✔ NPI 1124351051 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in CA · 130772
Definition
A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.
2501 E CHAPMAN AVE STE 301, Orange, CA 92869
Open in Google Maps ↗

Secondary Practice Location 1

Location 139400 Paseo Padre PkwyFremont, CA 94538-2310 · Phone (510) 248-3045

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nilanthi Gunawardane M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7517189384
PECOS Enrollment IDI20141111000878
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 9

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
133 services101 patients
Destruction of precancer skin growth, 2-14 growths 17003
This procedure involves removing 2-14 precancerous skin growths. The growths are treated to prevent them from potentially developing into skin cancer. The process is safe, with minimal discomfort, and promotes healthier skin.
106 services61 patients
Destruction of precancer skin growth, 1 growth 17000
"Destruction of precancer skin growth" is a procedure that eliminates a single precancerous skin growth. This is done to prevent it from developing into skin cancer. The growth may be removed using various methods such as cryotherapy (freezing), laser therapy, or topical medications.
100 services79 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
83 services83 patients
Biopsy of related skin growth, first growth 11102
A biopsy of a skin growth involves taking a small sample of the growth to examine it under a microscope. This helps determine if the growth is harmful. The procedure is typically quick, with minimal discomfort. It's a crucial step in ensuring your skin's health.
63 services58 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
55 services43 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92869 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
Established Patient
$77.96 typical visit price
range $20.84 – $153.61
Typical copayment $19.49 (range $5.21 – $38.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MEHRNAZ HOJJATI M. D.
Internal Medicine (Rheumatology)
2501 E CHAPMAN AVE STE 301
ORANGE, CA 92869
Orange County (714) 628-3230

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Nilanthi Gunawardane's NPI number?

The NPI number for Nilanthi Gunawardane is 1124351051. It was assigned to this individual provider in the NPPES registry on September 10, 2009.

Where is Nilanthi Gunawardane located?

Nilanthi Gunawardane practices at 2501 E Chapman Ave Ste 301, Orange, CA 92869. The listed phone number is (714) 628-3230.

What is Nilanthi Gunawardane's specialty?

The primary specialty registered for this NPI is Dermatology with taxonomy code 207N00000X.

Is Nilanthi Gunawardane enrolled in Medicare?

Yes. Nilanthi Gunawardane is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Nilanthi Gunawardane was last updated on July 14, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.