Si-Yuen Moy, M.D.
NPI 1649465162 · Hematology & Oncology Physician · Siuox Falls, SD
Enrolled with Medicare as Order and Referring Only - Hematology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Si-Yuen Moy, M.D. is a Hematology & Oncology Physician provider in Siuox Falls, SD (NPI 1649465162).
Provider details
- NPI number
- 1649465162
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 234766 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$146 across 1 record (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
- 2007-09-07
- Last updated
- 2011-10-21
Frequently asked questions
- What is Si-Yuen Moy's NPI number?
- Si-Yuen Moy's National Provider Identifier (NPI) is 1649465162, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Si-Yuen Moy's specialty?
- Si-Yuen Moy is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Si-Yuen Moy located?
- Si-Yuen Moy's practice location on file with NPPES is 2501 West 22nd Street, Siuox Falls, SD 57117.
- What is Si-Yuen Moy's phone number?
- The practice phone number listed in the NPPES registry for Si-Yuen Moy is (605) 336-3230.
- Does Si-Yuen Moy accept Medicare?
- Si-Yuen Moy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Si-Yuen Moy's NPI active?
- Yes — Si-Yuen Moy's NPI (1649465162) is active in the NPPES registry as of the last update on 2011-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.