Thomas M. Macpherson, MD
Thomas M. Macpherson is a Surgery Physician provider (Surgery) practicing in Walnut Creek, CA, registered in the NPPES registry with NPI 1366520454 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1366520454 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Thomas M. Macpherson |
| Credential | MD |
| Sex | Male |
| Practice address | 1425 S MAIN ST, Walnut Creek, CA, 94596 |
| Phone | 9252954000 |
| Enumeration date | 2006-11-02 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Primary | A36679 | 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 |
|---|---|---|---|
| 00A366790 | Medicaid | CA | — |
Copy-ready billing details
Provider: Thomas Macpherson, MD NPI: 1366520454 Taxonomy: 208600000X (Surgery Physician) Address: 1425 S MAIN ST, Walnut Creek, CA, 94596
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1578565198 | Sari Fredrickson | Individual | Adult Health Nurse Practitioner | Walnut Creek, CA |
| 1265424113 | Linda Rollins | Individual | Adult Health Nurse Practitioner | Walnut Creek, CA |
| 1902890114 | Jacqueline Alkire | Individual | Adult Health Nurse Practitioner | Walnut Creek, CA |
| 1609858802 | Audrey Nagle | Individual | Neonatal-Perinatal Medicine Physician | Walnut Creek, CA |
| 1427031335 | Dennis Fua | Individual | Anesthesiology Physician | Walnut Creek, CA |
| 1396715538 | Sharyn Ginsberg | Individual | Women's Health Nurse Practitioner | Walnut Creek, CA |
| 1770554693 | Brian Baskin | Individual | Emergency Medicine Physician | Walnut Creek, CA |
| 1386615151 | Diane Seipel Sherard | Individual | Nurse Practitioner | Walnut Creek, CA |
Verify this record
Cross-check NPI 1366520454 against the authoritative CMS record: view Thomas M. Macpherson 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 2007-07-08.