Stephanie Gan, MD
NPI 1629399654 · Dermatology Physician · Hinsdale, IL
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Gan, MD is a Dermatology Physician provider in Hinsdale, IL (NPI 1629399654).
Provider details
- NPI number
- 1629399654
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036138235 (IL)
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
16 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
3,034 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 | 966 | $7 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 457 | $93 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 306 | $56 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 293 | $132 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 257 | $36 |
| Biopsy of Related Skin Growth, First Growth11102 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 283 | 145 |
| Triamcinolone Acetonide | 155 | 137 |
| Doxycycline Hyclate | 85 | 52 |
| Hydrocortisone | 50 | 41 |
| Betamethasone Dipropionate | 41 | 29 |
| Dutasteride | 39 | 12 |
| Clobetasol Propionate | 38 | 21 |
| Mupirocin | 34 | 33 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$324 across 8 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
- 2010-06-14
- Last updated
- 2023-08-08
- Certified
- 2023-08-08
Frequently asked questions
- What is Stephanie Gan's NPI number?
- Stephanie Gan's National Provider Identifier (NPI) is 1629399654, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Gan's specialty?
- Stephanie Gan is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephanie Gan located?
- Stephanie Gan's practice location on file with NPPES is 40 S Clay St Ste Ll30e, Hinsdale, IL 60521-3257.
- What is Stephanie Gan's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Gan is (630) 286-5050.
- Does Stephanie Gan accept Medicare?
- Stephanie Gan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Gan's NPI active?
- Yes — Stephanie Gan's NPI (1629399654) is active in the NPPES registry as of the last update on 2023-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.