Mark Siegel, M.D.
NPI 1437536463 · Dermatology Physician · Charleston, SC
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Siegel, M.D. is a Dermatology Physician provider in Charleston, SC (NPI 1437536463).
Provider details
- NPI number
- 1437536463
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 38050 (SC)
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
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,814 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 | 796 | $6 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 183 | $45 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 146 | $85 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 128 | $119 |
| Biopsy of Related Skin Growth, First Growth11102 | 125 | $84 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 39 | 24 |
| Mupirocin | 39 | 27 |
| Ketoconazole | 35 | 19 |
| Clobetasol Propionate | 33 | 19 |
| Doxycycline Hyclate | 19 | 19 |
| Hydrocortisone | 19 | 13 |
| Fluorouracil | 16 | 15 |
| Mometasone Furoate | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$25,070 across 119 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
Additional practice locations (1)
- 570 Long Point Rd Ste 200Mt Pleasant, SC 29464-7940Phone: (843) 881-0320Fax: (843) 881-5453
Registry dates
- Enumerated
- 2015-04-28
- Last updated
- 2025-08-12
- Certified
- 2025-08-12
Frequently asked questions
- What is Mark Siegel's NPI number?
- Mark Siegel's National Provider Identifier (NPI) is 1437536463, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Siegel's specialty?
- Mark Siegel is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Siegel located?
- Mark Siegel's practice location on file with NPPES is 169 Ashley Ave, Charleston, SC 29425.
- What is Mark Siegel's phone number?
- The practice phone number listed in the NPPES registry for Mark Siegel is (843) 792-3876.
- Does Mark Siegel accept Medicare?
- Mark Siegel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Siegel's NPI active?
- Yes — Mark Siegel's NPI (1437536463) is active in the NPPES registry as of the last update on 2025-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.