Dr. Constance Sing Wai Chan, PHD
Dr. Constance Sing Wai Chan is a Clinical Psychologist provider (Psychologist) practicing in Orleans, MA, registered in the NPPES registry with NPI 1801388913 since 2018. The credential PHD stands for Doctor of Philosophy.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1801388913 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Constance Sing Wai Chan |
| Credential | PHD |
| Sex | Female |
| Practice address | Orleans, MA, 02653 |
| Phone | 6174383480 |
| Enumeration date | 2018-06-04 |
| Last updated in NPPES | 2018-06-04 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103TC0700X | Clinical Psychologist | Primary | 3135 | MA |
PHD — Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential
Copy-ready billing details
Provider: Constance Chan, PHD NPI: 1801388913 Taxonomy: 103TC0700X (Clinical Psychologist) Address: Orleans, MA, 02653
Verify this record
Cross-check NPI 1801388913 against the authoritative CMS record: view Dr. Constance Sing Wai Chan 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2018-06-04.