ROBERT A. MAIRS DO – NPI #1124001862
Obstetrics & Gynecology
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
ROBERT MAIRS is a physician located in ONTARIO, OR. NPPES has assigned the NPI number 1124001862 to ROBERT MAIRS on November 28, 2005. It is a Type-1 NPI, indicating this NPI number is associated with an individual. According to the NPI Registry, there are 2 additional location(s) assigned to this provider which are listed below. With multiple taxonomy codes selected, the primary taxonomy selected by this provider is 207V00000X from the Health Care Provider Taxonomy code set, which is classified as Obstetrics & Gynecology.
The NPI profile was last updated on Sep 23, 2025. Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for ROBERT MAIRS below.
NPI Profile for
ROBERT A. MAIRS
(more than 20 years ago)
ONTARIO, OR 97914-4560 Phone: (541) 881-2325 Fax: (208) 914-6701
2 Other location(s):
Nampa, ID 83687-7912
Phone: (208) 706-3220
Fax: (208) 706-3221
Ontario, OR 97914-2638
Phone: (541) 881-2800
Fax: (541) 881-2825
BOISE, ID 83719-0930 Phone: (208) 367-5170 Fax: (208) 367-5180
Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.
Identifiers for ROBERT MAIRS
Identifiers are used to associate other provider identifiers such as Medicaid or other insurers (ie:, Blue Cross, Blue Shield, Aetna, Kaiser-Permanente, etc.), with their NPI number. These identifiers can be used in matching an NPI number to an insurer's records. However, not all providers have such numbers and not all providers choose to include them in their NPI information.
| Description | Issuer | State | Identifier |
|---|---|---|---|
| medicaid | ID | 804163300 |
A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.
| Taxonomy Classification / Specialization | State | License |
|---|---|---|
| 207V00000X - Obstetrics & Gynecology (Primary) |
OR | DO20644 |
| 207VG0400X - Obstetrics & Gynecology / Gynecology |
ID | O-186 |
The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.
Additional Information
- Refer to Part B
- Order Durable Medical Equipment
- Refer to Home Health Agency
- Order Power Mobility Devices
ROBERT MAIRS is affiliated with the following medical group(s):
- HOSPITAL
- SAINT ALPHONSUS MEDICAL CENTER - ONTARIO, INC351 SW 9TH STREET
ONTARIO, OR 97914
- SAINT ALPHONSUS MEDICAL CENTER - ONTARIO, INC351 SW 9TH STREET
Why is my NPI data (personal information) being displayed publicly?
If you have an active NPI profile, your profile is required to be disclosed according to the FOIA and eFOIA. HIPAA also requires covered providers to share their NPI with other providers, health plans, clearinghouses and any entity that may need it for billing purposes.
How do I correct or change the NPI data displayed here?
At any time, providers can make changes to their NPI profile at NPPES. Login to NPPES to make changes online or call (800) 465-3203 for assistance. Changes made at NPPES will be reflected on this web site within a few days.
Can I hide my NPI profile from the public?
Unfortunately, No. The NPPES discloses health care provider data under the Freedom of Information Act to the public, which means anyone may request such information directly from the National Plan & Provider Enumeration System.
See the complete CMS Data Dissemination Notice here.