John A. Bachman, PHD
John A. Bachman is a Psychologist provider (Psychologist) practicing in Placerville, CA, registered in the NPPES registry with NPI 1891816880 since 2007. The credential PHD stands for Doctor of Philosophy. Practices at Sierra Hills Women'S Center and Advanced Gynecology (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1891816880 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | John A. Bachman |
| Credential | PHD |
| Sex | Male |
| Practice address | Placerville, CA, 95667 |
| Phone | 5306217700 |
| Enumeration date | 2007-04-03 |
| Last updated in NPPES | 2011-05-13 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 103T00000X | Psychologist | Primary | PSY6894 | CA |
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: John Bachman, PHD NPI: 1891816880 Taxonomy: 103T00000X (Psychologist) Address: Placerville, CA, 95667
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1457333767 | Laura Halliday | Individual | Pediatrics Physician | Placerville, CA |
| 1013172477 | Harry Green | Individual | Optometrist | Placerville, CA |
| 1568725562 | Yu-Tai Wu | Individual | Optometrist | Placerville, CA |
| 1629896766 | Sierra Hills Women'S Center and Advanced Gynecology | Organization | Obstetrics & Gynecology Physician | Placerville, CA |
Verify this record
Cross-check NPI 1891816880 against the authoritative CMS record: view John A. Bachman 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 2011-05-13.