Sonia Siu, MD
NPI 1225084361 · Hospitalist Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Hospitalist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonia Siu, MD is a Hospitalist Physician provider in Philadelphia, PA (NPI 1225084361).
Provider details
- NPI number
- 1225084361
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD438776 (PA)
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 tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-26
- Last updated
- 2019-08-13
Frequently asked questions
- What is Sonia Siu's NPI number?
- Sonia Siu's National Provider Identifier (NPI) is 1225084361, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonia Siu's specialty?
- Sonia Siu is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Sonia Siu located?
- Sonia Siu's practice location on file with NPPES is 3400 Spruce St, Philadelphia, PA 19104-4238.
- What is Sonia Siu's phone number?
- The practice phone number listed in the NPPES registry for Sonia Siu is (215) 662-9990.
- Does Sonia Siu accept Medicare?
- Sonia Siu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sonia Siu's NPI active?
- Yes — Sonia Siu's NPI (1225084361) is active in the NPPES registry as of the last update on 2019-08-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.