Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Bonnie L Stewart, PH.D.
Psychologist in Lafayette Hill, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1669431987
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Registry record
Entity type Individual (Type 1)
Name Dr. Bonnie L Stewart
Credential PH.D.
Sex Female
Practice address 462 Germantown Pike, Lafayette Hill, PA, 19444
Phone (610) 832-7771
Fax (610) 832-7771
Enumeration date Mar 23, 2006
Last updated in NPPES Jul 13, 2026
Taxonomy & licenses
103T00000X Psychologist Behavioral Health & Social Service Providers · License PS006957L (PA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1108229 | Other | - | CIGNA |
| 215928 | Other | PA | MANAGED HEALTH NETWORK |
| 0787621000 | Other | PA | MAGELLAN |
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.
Frequently asked questions
Where does Bonnie Stewart practice?
The practice location on file with NPPES is in Lafayette Hill, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Bonnie Stewart?
The National Provider Identifier (NPI) for Bonnie Stewart is 1669431987, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-13.