Robert A. Mairs Do PC
Robert A. Mairs Do PC is a healthcare organization registered as Rural Health Clinic/Center in Ontario, OR, holding Type 2 (organization) NPI 1891112967 since 2014. The authorized official on file is Robert Mairs, Owner.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1891112967 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Robert A. Mairs Do PC |
| Other name | <Unavail> |
| Practice address | 1219 SW 4TH AVE, SUITE 2, Ontario, OR, 97914 |
| Phone | 5418892229 |
| Fax | 5418890716 |
| Enumeration date | 2014-03-26 |
| Last updated in NPPES | 2014-03-26 |
Authorized official
| Name | Robert Mairs |
|---|---|
| Title | Owner |
| Phone | 5418892229 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 261QR1300X | Rural Health Clinic/Center | Primary | — | — |
Copy-ready billing details
Provider: Robert A. Mairs Do PC NPI: 1891112967 Taxonomy: 261QR1300X (Rural Health Clinic/Center) Address: 1219 SW 4TH AVE, SUITE 2, Ontario, OR, 97914
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1457334310 | Siri Jackman | Individual | Obstetrics & Gynecology Nurse Practitioner | Ontario, OR |
| 1740394378 | Thomas Geraci | Individual | Pediatrics Physician | Ontario, OR |
| 1477640944 | Sandra Dunbrasky | Individual | Pediatrics Physician | Ontario, OR |
| 1417000308 | Raquel Johnson | Individual | Advanced Practice Midwife | Ontario, OR |
| 1346404399 | Furm M Duncan Jr, M.D., P.C. | Organization | Obstetrics & Gynecology Physician | Ontario, OR |
| 1871757823 | Robert A Mairs Do PC | Organization | Obstetrics & Gynecology Physician | Ontario, OR |
| 1639511819 | John David Hansill, M.D., PC | Organization | Obstetrics & Gynecology Physician | Ontario, OR |
| 1477958494 | Jennifer King | Individual | Family Nurse Practitioner | Ontario, OR |
Verify this record
Cross-check NPI 1891112967 against the authoritative CMS record: view Robert A. Mairs Do PC 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 type of organization is Robert A. Mairs Do PC?
What is a Type 2 NPI?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-03-26.