Long Quan, M.D., PH.D.
NPI 1194784058 · Dermatology Physician · Columbia, SC
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Long Quan, M.D., PH.D. is a Dermatology Physician provider in Columbia, SC (NPI 1194784058).
Provider details
- NPI number
- 1194784058
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 22472 (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
20 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
2,818 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) |
|---|---|---|
| Removal and Microscopic Exam of Growth of Head, Neck, Hands, Feet, Or Genitals, 1-5 Tissue Blocks17311 | 1,887 | $566 |
| Removal and Microscopic Exam of Growth of Head, Neck, Hands, Feet, Or Genitals, Each Additional Stage, 1-5 Tissue Blocks17312 | 490 | $375 |
| Removal and Microscopic Exam of Growth of Trunk, Arms, Or Legs, 1-5 Tissue Blocks17313 | 99 | $527 |
| Complicated Repair of Wound of Forehead, Cheeks, Chin, Mouth, Neck, Underarms, Genitals, Hands, Or Feet, 2.6-7.5 Cm13132 | 93 | $217 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 58 | $97 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Fluorouracil | 59 | 40 |
| Imiquimod | 20 | 13 |
| Doxycycline Hyclate | 17 | 13 |
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 no Part D record, 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$392 across 21 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
- 2006-03-20
- Last updated
- 2007-10-09
Frequently asked questions
- What is Long Quan's NPI number?
- Long Quan's National Provider Identifier (NPI) is 1194784058, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Long Quan's specialty?
- Long Quan is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Long Quan located?
- Long Quan's practice location on file with NPPES is 1706 Saint Julian Pl, Columbia, SC 29204-2410.
- What is Long Quan's phone number?
- The practice phone number listed in the NPPES registry for Long Quan is (803) 771-7506.
- Does Long Quan accept Medicare?
- Long Quan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Long Quan's NPI active?
- Yes — Long Quan's NPI (1194784058) is active in the NPPES registry as of the last update on 2007-10-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.