Helen Sy, MD
NPI 1215026794 · Pediatrics Physician · Anaheim, CA
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Helen Sy, MD is a Pediatrics Physician provider in Anaheim, CA (NPI 1215026794).
Provider details
- NPI number
- 1215026794
- Entity type
- Individual
- Primary specialty
- Pediatrics PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A42430 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2006-10-12
- Last updated
- 2011-11-09
Frequently asked questions
- What is Helen Sy's NPI number?
- Helen Sy's National Provider Identifier (NPI) is 1215026794, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Helen Sy's specialty?
- Helen Sy is listed in the NPPES registry with a primary specialty of Pediatrics Physician (Allopathic & Osteopathic Physicians).
- Where is Helen Sy located?
- Helen Sy's practice location on file with NPPES is 1820 W Lincoln Ave, Anaheim, CA 92801-6730.
- What is Helen Sy's phone number?
- The practice phone number listed in the NPPES registry for Helen Sy is (714) 635-0593.
- Does Helen Sy accept Medicare?
- Helen Sy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Helen Sy's NPI active?
- Yes — Helen Sy's NPI (1215026794) is active in the NPPES registry as of the last update on 2011-11-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.