Nathan Rojek, M.D.
NPI 1811315583 · Dermatology Physician · Irvine, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nathan Rojek, M.D. is a Dermatology Physician provider in Irvine, CA (NPI 1811315583).
Provider details
- NPI number
- 1811315583
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A154167 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
658 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 204 | $6 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 114 | $128 |
| Therapy Procedure Using Ultraviolet Radiation With Tar Or Petroleum Jelly Application96910 | 87 | $147 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 61 | $93 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 60 | $65 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 90 | 30 |
| Clobetasol Propionate | 68 | 18 |
| Triamcinolone Acetonide | 45 | 26 |
| Calcipotriene | 30 | — |
| Minoxidil | 23 | — |
| Ciclopirox | 19 | — |
| Doxycycline Hyclate | 17 | — |
| Ustekinumabbrand: Stelara | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$443 across 4 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2014-03-31
- Last updated
- 2018-04-23
Frequently asked questions
- What is Nathan Rojek's NPI number?
- Nathan Rojek's National Provider Identifier (NPI) is 1811315583, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nathan Rojek's specialty?
- Nathan Rojek is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Nathan Rojek located?
- Nathan Rojek's practice location on file with NPPES is 1 Medical Plaza Drive Gottschalk Medical Plaza, Irvine, CA 92697-3017.
- What is Nathan Rojek's phone number?
- The practice phone number listed in the NPPES registry for Nathan Rojek is (949) 824-8600.
- Does Nathan Rojek accept Medicare?
- Nathan Rojek is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nathan Rojek's NPI active?
- Yes — Nathan Rojek's NPI (1811315583) is active in the NPPES registry as of the last update on 2018-04-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.