Bryan Sun, M.D., PH.D
NPI 1275787673 · Dermatology Physician · Orange, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bryan Sun, M.D., PH.D is a Dermatology Physician provider in Orange, CA (NPI 1275787673).
Provider details
- NPI number
- 1275787673
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D
- Sex
- Male
- Sole proprietor
- No
- License
- A109152 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
535 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Therapy Procedure Using Ultraviolet Radiation With Tar Or Petroleum Jelly Application96910 | 124 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 107 | $98 |
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 64 | $7 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 56 | $118 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 46 | $135 |
| Biopsy of Related Skin Growth, First Growth11102 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 32 | 15 |
| Triamcinolone Acetonide | 27 | 15 |
| Hydrocortisone | 22 | 15 |
| Clobetasol Propionate | 18 | 12 |
| Mupirocin | 18 | — |
| Fluocinonide | 16 | 11 |
| Doxycycline Monohydrate | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-11-12
- Last updated
- 2023-10-27
- Certified
- 2023-10-27
Frequently asked questions
- What is Bryan Sun's NPI number?
- Bryan Sun's National Provider Identifier (NPI) is 1275787673, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bryan Sun's specialty?
- Bryan Sun is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Bryan Sun located?
- Bryan Sun's practice location on file with NPPES is 101 the City Dr S, Orange, CA 92868-3201.
- What is Bryan Sun's phone number?
- The practice phone number listed in the NPPES registry for Bryan Sun is (949) 824-0606.
- Does Bryan Sun accept Medicare?
- Bryan Sun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bryan Sun's NPI active?
- Yes — Bryan Sun's NPI (1275787673) is active in the NPPES registry as of the last update on 2023-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.