Marcus Tan, MD, FAAD, FRCPC
NPI 1639886575 · MOHS-Micrographic Surgery Physician · Renton, WA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marcus Tan, MD, FAAD, FRCPC is a MOHS-Micrographic Surgery Physician provider in Renton, WA (NPI 1639886575).
Provider details
- NPI number
- 1639886575
- Entity type
- Individual
- Primary specialty
- MOHS-Micrographic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, FAAD, FRCPC
- Sex
- Male
- Sole proprietor
- No
- License
- MD61647325 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
3 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
291 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 88 | $126 |
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 69 | $7 |
| Biopsy of Related Skin Growth, First Growth11102 | 33 | $88 |
| Destruction of Precancer Skin Growth, 15 Or More Growths17004 | 28 | $165 |
| Destruction of Skin Growth, 1-14 Growths17110 | 23 | $110 |
| Destruction of Precancer Skin Growth, 1 Growth17000 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 60 | 26 |
| Tacrolimus | 21 | 18 |
| Clobetasol Propionate | 19 | 13 |
| Triamcinolone Acetonide | 12 | — |
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.
$3,908 across 129 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 (3)
- 3411 Homer StDallas, TX 75206-5813Phone: (214) 663-2163
- 2130 W Holcombe Blvd Fl 6Houston, TX 77030-3306Phone: (713) 563-2772
- 1920 N Collins BlvdRichardson, TX 75080-3525Phone: (972) 316-4555
Registry dates
- Enumerated
- 2022-10-31
- Last updated
- 2025-10-31
- Certified
- 2025-10-31
Frequently asked questions
- What is Marcus Tan's NPI number?
- Marcus Tan's National Provider Identifier (NPI) is 1639886575, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marcus Tan's specialty?
- Marcus Tan is listed in the NPPES registry with a primary specialty of MOHS-Micrographic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Marcus Tan located?
- Marcus Tan's practice location on file with NPPES is 660 Sw 39th St Ste 150, Renton, WA 98057-4912.
- What is Marcus Tan's phone number?
- The practice phone number listed in the NPPES registry for Marcus Tan is (425) 690-3483.
- Does Marcus Tan accept Medicare?
- Marcus Tan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marcus Tan's NPI active?
- Yes — Marcus Tan's NPI (1639886575) is active in the NPPES registry as of the last update on 2025-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.