Dr. Leo Roy Leer, MD
Dr. Leo Roy Leer is a Specialist provider (Specialist) practicing in Eureka, CA, registered in the NPPES registry with NPI 1316984842 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1316984842 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Leo Roy Leer |
| Credential | MD |
| Sex | Male |
| Practice address | 2675 HARRIS ST, Eureka, CA, 95503 |
| Phone | 7074438335 |
| Fax | 7074437327 |
| Enumeration date | 2006-06-01 |
| Last updated in NPPES | 2021-11-05 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 174400000X | Specialist | Primary | G55144 | CA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Leo Leer, MD NPI: 1316984842 Taxonomy: 174400000X (Specialist) Address: 2675 HARRIS ST, Eureka, CA, 95503
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1114965761 | Eureka Family Practice | Organization | Specialist | Eureka, CA |
| 1477596278 | Caroline Connor | Individual | Specialist | Eureka, CA |
| 1689617482 | Edward Olsgard | Individual | Specialist | Eureka, CA |
| 1033284070 | Kathy Sattler | Individual | Nurse Practitioner | Eureka, CA |
| 1053487611 | Marice Thomas | Individual | Family Nurse Practitioner | Eureka, CA |
| 1538211719 | Humboldt Radiology Medical Group Inc | Organization | Diagnostic Radiology Physician | Eureka, CA |
| 1528275864 | Tiffany Avila Powell | Individual | Neurological Surgery Physician | Eureka, CA |
| 1962693564 | Jessica Vulich | Individual | Registered Nurse | Eureka, CA |
Verify this record
Cross-check NPI 1316984842 against the authoritative CMS record: view Dr. Leo Roy Leer 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
What specialty is Leo Leer?
Is this the official NPI registry?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-11-05.