Dan Siapco, M.D.
NPI 1881631273 · Ophthalmology Physician · Sedro Woolley, WA
Enrolled with Medicare as Practitioner - Ophthalmology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dan Siapco, M.D. is a Ophthalmology Physician provider in Sedro Woolley, WA (NPI 1881631273).
Provider details
- NPI number
- 1881631273
- Entity type
- Individual
- Primary specialty
- Ophthalmology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD00041762 (WA)
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
2,904 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 Complete Exam of Visual System92014 | 695 | $129 |
| Removal of Cataract With Insertion of Prosthetic Lens66984 | 495 | $510 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 394 | $92 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 322 | $130 |
| Measurement of Corneal Curvature and Depth of Eye92136 | 310 | $41 |
| Imaging of Optic Nerve92133 | 241 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Latanoprost | 330 | 101 |
| Prednisolone Acetate | 171 | 111 |
| Timolol Maleate | 152 | 37 |
| Dorzolamide Hcl/Timolol Maleatbrand: Dorzolamide-Timolol | 106 | 30 |
| Cyclosporinebrand: Restasis | 95 | 48 |
| Fluorometholone | 88 | 83 |
| Brimonidine Tartrate | 77 | 20 |
| Bimatoprost |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$63 across 2 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
- 2006-06-02
- Last updated
- 2022-04-17
- Certified
- 2022-04-17
Frequently asked questions
- What is Dan Siapco's NPI number?
- Dan Siapco's National Provider Identifier (NPI) is 1881631273, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dan Siapco's specialty?
- Dan Siapco is listed in the NPPES registry with a primary specialty of Ophthalmology Physician (Allopathic & Osteopathic Physicians).
- Where is Dan Siapco located?
- Dan Siapco's practice location on file with NPPES is 2131 Hospital Dr, Sedro Woolley, WA 98284-4301.
- What is Dan Siapco's phone number?
- The practice phone number listed in the NPPES registry for Dan Siapco is (360) 416-6735.
- Does Dan Siapco accept Medicare?
- Dan Siapco is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dan Siapco's NPI active?
- Yes — Dan Siapco's NPI (1881631273) is active in the NPPES registry as of the last update on 2022-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.