Hellen Chiao, MD
Hellen Chiao is a Gastroenterology Physician provider (Internal Medicine) practicing in Oceanside, CA, registered in the NPPES registry with NPI 1154681435 since 2012. The credential MD stands for Doctor of Medicine. Practices at North County Gastroenterology Medical Group, Inc. (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1154681435 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Hellen Chiao |
| Credential | MD |
| Sex | Female |
| Practice address | 3923 WARING RD STE A, Oceanside, CA, 92056 |
| Phone | 7607248782 |
| Fax | 7608427801 |
| Enumeration date | 2012-05-21 |
| Last updated in NPPES | 2021-02-25 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207RG0100X | Gastroenterology Physician | Primary | A127722 | CA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1154681435 | Medicaid | CA | — |
Copy-ready billing details
Provider: Hellen Chiao, MD NPI: 1154681435 Taxonomy: 207RG0100X (Gastroenterology Physician) Address: 3923 WARING RD STE A, Oceanside, CA, 92056
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1003885922 | Javaid Shad | Individual | Gastroenterology Physician | Oceanside, CA |
| 1730158650 | Matthew Viernes | Individual | Gastroenterology Physician | Oceanside, CA |
| 1376512848 | Christopher Devereaux | Individual | Gastroenterology Physician | Oceanside, CA |
| 1710020201 | North County Gastroenterology Medical Group, Inc. | Organization | Gastroenterology Physician | Oceanside, CA |
| 1851503353 | Michael Shim | Individual | Gastroenterology Physician | Oceanside, CA |
| 1841536208 | Eva Skulsky | Individual | Medical Physician Assistant | Oceanside, CA |
| 1194142570 | Sara Andolina | Individual | Family Nurse Practitioner | Oceanside, CA |
| 1770961971 | Megan Novo | Individual | Gastroenterology Physician | Oceanside, CA |
Verify this record
Cross-check NPI 1154681435 against the authoritative CMS record: view Hellen Chiao on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
Where does Hellen Chiao practice?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-02-25.