Helen Ang Sy, MD
Pediatrics Physician · Anaheim, CA
Helen Ang Sy, MD is a pediatrics physician with a practice address in Anaheim, California, and NPI 1215026794, issued on Oct 12, 2006. Check the license (California A42430, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Helen Ang Sy
- Credential
- MD
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- A42430 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1820 W Lincoln Ave, Anaheim, CA 92801
- Phone
- (714) 635-0593
- Enumerated
- Oct 12, 2006
- Record last updated
- Nov 9, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (714) 774-4784
- Medicaid ID
- 00A424300 CA
- Entity
- Type 1 · individual
Also registered at 1820 W Lincoln Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lupe CastroHealth Educator1245742584
- Matthew Lomeli, M.D.Family Medicine Physician1184945610
- Carmen Perez, CPHWCommunity Health Worker1952737991
Verify Helen Ang Sy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A42430Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92 pediatrics physician records list a practice address in Anaheim
They are 92 of the 9,018 NPPES records with a practice address in Anaheim, and 9,272 pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 92 in Anaheim → All 9,272 in California → Every provider in Anaheim →
Other pediatrics physician records in California
- Subha Aahlad, M.D.Foster City, CA1780610253
- Rebecca Aaronson, MDPanorama City, CA1487746814
- Gregorio Abad-Santos, M.D.Long Beach, CA1255451894
- Michelle Abajian, MDLa Canada, CA1619176757
- Joseph Abapo, MDRiverside, CA1841348786
- Zvart Abaryan, MDLos Angeles, CA1154940849
- Lauren Abbas, MDLos Angeles, CA1982163796
- Attia Abbasi, M.D.Auburn, CA1922027127
- Denise AbbasiParadise, CA1770062341
- Alexandra Abbott, MDPalo Alto, CA1760018675
Common questions
What is Helen Ang Sy, MD's NPI number?
Helen Ang Sy, MD's National Provider Identifier (NPI) is 1215026794, issued on Oct 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Helen Ang Sy, MD located?
The NPPES record lists a practice address at 1820 W Lincoln Ave, Anaheim, CA, 92801. Phone: (714) 635-0593. Providers update this record themselves, so call before visiting.
How can I verify Helen Ang Sy, MD's license?
NPPES lists California license number A42430, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.