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NATHAN ROJEK M.D.
NPI 1811315583
Dermatology in Irvine, CA

Active since March 31, 2014PECOS EnrolledAccepts Medicare Assignment
100/100
CMS Quality Rating
1 MEDICAL PLAZA DRIVE GOTTSCHALK MEDICAL PLAZA, IRVINE, CA 92697(949) 824-8600 Get Directions Write a Review

NPPES record last updated: April 23, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Nathan Rojek M.d. NPPES

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

NATHAN ROJEK M.D. (NPI 1811315583) is an individual dermatology provider in Irvine, California, licensed in California (A154167) and active in the NPI registry since March 2014. He is enrolled in Medicare PECOS and is a graduate of Other (2014).

NPPES Registry Identity

NPI1811315583
Entity TypeIndividualMale
Primary Taxonomy207N00000X
Provider Legal NameNATHAN ROJEKCredential: M.D.
Location Address1 MEDICAL PLAZA DRIVE GOTTSCHALK MEDICAL PLAZAIrvine, CA 92697-3017
Mailing Address118 Medical Surge I Uc Irvine Department Of DermatologyIrvine, CA 92697-2400 · (949) 824-5515
Phone(949) 824-8600
Sole ProprietorYes
Medical School CMSOtherGraduated 2014
Enumeration DateMarch 31, 2014
Last NPPES UpdateApril 23, 2018
✔ NPI 1811315583 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDermatologyAllopathic & Osteopathic Physicians
Taxonomy Code207N00000X
License✔ Licensed in CA · A154167
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.
1 MEDICAL PLAZA DRIVE GOTTSCHALK MEDICAL PLAZA, Irvine, CA 92697
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Nathan Rojek 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 ID8628378866
PECOS Enrollment IDI20180716000057
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.

Medicare Billing Reassignment

Medicare enrollment records show Nathan Rojek reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Uci Department Of Dermatology
10.0 mi
Dermatology
101 THE CITY DR S
Orange, CA 92868
  • Reassigned Medicare billing, California enrollment
  • 54 clinicians in this Medicare group
NPI 1518916527 (714) 456-7004

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 11

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.

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.
204 services34 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.
114 services82 patients
Therapy procedure using ultraviolet radiation with tar or petroleum jelly application 96910
This therapy involves applying tar or petroleum jelly on the skin, followed by exposure to ultraviolet radiation. It helps in treating skin conditions by slowing cell growth and reducing inflammation. It's a safe, controlled process, often used for conditions like psoriasis.
87 services20 patients
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.
61 services54 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.
60 services50 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
26 services26 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92697 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

100/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality82.4
Promoting Interoperability100
Improvement Activities40

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 Nathan Rojek's NPI number?

The NPI number for Nathan Rojek is 1811315583. It was assigned to this individual provider in the NPPES registry on March 31, 2014.

Where is Nathan Rojek located?

Nathan Rojek practices at 1 Medical Plaza Drive Gottschalk Medical Plaza, Irvine, CA 92697. The listed phone number is (949) 824-8600.

What is Nathan Rojek's specialty?

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

Is Nathan Rojek enrolled in Medicare?

Yes. Nathan Rojek 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.

Which organization bills Medicare for Nathan Rojek's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nathan Rojek reassigns Medicare benefits to Uci Department Of Dermatology (Orange, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Nathan Rojek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Nathan Rojek was last updated on April 23, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.