Dr. David Samuel Marcus, PH.D.
Dr. David Samuel Marcus is a Clinical Psychologist provider (Psychologist) practicing in Cincinnati, OH, registered in the NPPES registry with NPI 1669558060 since 2006. The credential PHD stands for Doctor of Philosophy. Practices at Matthew D. Finke, Dc (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1669558060 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. David Samuel Marcus |
| Credential | PH.D. |
| Sex | Male |
| Practice address | Cincinnati, OH, 45243 |
| Phone | 5132713555 |
| Fax | 5132713555 |
| Enumeration date | 2006-10-27 |
| Last updated in NPPES | 2007-07-08 |
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 | 3811 | OH |
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: David Marcus, PH.D. NPI: 1669558060 Taxonomy: 103TC0700X (Clinical Psychologist) Address: Cincinnati, OH, 45243
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1033156963 | Matthew D. Finke, Dc | Organization | Chiropractor | Cincinnati, OH |
| 1770648032 | Regine Moulton | Individual | Family Medicine Physician | Cincinnati, OH |
Verify this record
Cross-check NPI 1669558060 against the authoritative CMS record: view Dr. David Samuel Marcus 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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Where does David Marcus practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.