Chun Siu, DO
NPI 1871150011 · Hematology & Oncology Physician · Allentown, PA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chun Siu, DO is a Hematology & Oncology Physician provider in Allentown, PA (NPI 1871150011).
Provider details
- NPI number
- 1871150011
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- OT019021 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
7 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.
$75 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
- 2019-05-23
- Last updated
- 2022-06-02
- Certified
- 2022-06-02
Frequently asked questions
- What is Chun Siu's NPI number?
- Chun Siu's National Provider Identifier (NPI) is 1871150011, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chun Siu's specialty?
- Chun Siu is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Chun Siu located?
- Chun Siu's practice location on file with NPPES is 1240 S Cedar Crest Blvd Ste 401, Allentown, PA 18103-6218.
- What is Chun Siu's phone number?
- The practice phone number listed in the NPPES registry for Chun Siu is (610) 402-7880.
- Does Chun Siu accept Medicare?
- Chun Siu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chun Siu's NPI active?
- Yes — Chun Siu's NPI (1871150011) is active in the NPPES registry as of the last update on 2022-06-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.