Dr. Robert A. Mairs
Dr. Robert A. Mairs
Last updated: Sep 23, 2025

Dr. Robert A. Mairs

  • Gender: Male
  • Experience: 28 years
  • Graduated from: At Still University Of Health Sciences, College Of Osteo Med, Kirksville
  • Graduation year: 1993
  • Sole propriator: No
  • NPI: 1124001862

Dr. Robert A. Mairs DO

Gynecologist

He is located at 1050 Southwest 3rd Avenue Suite 3200 in Ontario, OR 97914. Can help patients with the following: Breastfeeding and Lactation, Cervical Intraepithelial Neoplasia (CIN), Ovarian Cancer, Prenatal Care, Urinary Retention, Uterine Cancer. His National Provider Identifier (NPI) number is 1124001862. Appointment can be made via the phone number (541) 881-2325. He is affiliated with 2 hospitals.

Conditions treated

Dr. Robert A. Mairs, being an gynecologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Robert A. Mairs.

  • Amenorrhea
  • Bacterial Vaginosis
  • Birth Control Counseling
  • Blood in Urine
  • Braxton Hicks Contractions
  • Breast Cancer
  • Breastfeeding
  • Breastfeeding and Lactation
  • Cancer
  • Cervical Cancer
  • Cervical Intraepithelial Neoplasia (CIN)
  • Chlamydia
  • Ectopic Pregnancy
  • Endometriosis
  • Fibrocystic Breast Disease
  • Gestational Diabetes
  • Group B Streptococcal Infection (GBS)
  • Gynecological Exam
  • High Blood Pressure
  • Hot Flashes
  • Human Papillomavirus (HPV)
  • Infertility
  • Labor and Birth
  • Menopause
  • Menstrual Cramps
  • Miscarriage
  • Morning Sickness
  • Osteoporosis
  • Ovarian Cancer
  • Ovarian Cysts
  • Overactive Bladder (OAB)
  • Pelvic Inflammatory Disease (PID)
  • Pelvic Pain
  • Perimenopause
  • Placenta Previa
  • Polycystic Ovary Syndrome (PCOS)
  • Preeclampsia and Eclampsia
  • Pregnancy
  • Premature Ovarian Failure (POF)
  • Premenstrual Dysphoric Disorder (PMDD)
  • Premenstrual Syndrome (PMS)
  • Prenatal Care
  • Sexually Transmitted Diseases (STDs)
  • Trichomoniasis
  • Urinary Incontinence (UI)
  • Urinary Retention
  • Urinary Tract Infection (UTI)
  • Uterine Cancer
  • Uterine Fibroids
  • Uterine Growths
  • VBAC
  • Vaginal Atrophy and Dryness
  • Vaginal Bleeding
  • Vaginal Cancer
  • Vaginal Pain
  • Vaginitis
  • Women's Health
  • Yeast Infection

Procedures Performed by Dr. Robert A. Mairs

ACA Marketplace (Obamacare/HealthCare.gov) plan networks

Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Robert A. Mairs as in-network for the following 2026 plans.

Health plans

Moda Health Plan, Inc.

Network data as of Sep 12, 2026, as reported by the insurer.

Show all 13 plans from Moda Health Plan, Inc.
Moda Health Plan, Inc. plans
Plan Plan type Network tier New patients
Moda Health Affinity Bronze 8000 EPO · Expanded Bronze Preferred Accepting new patients
Moda Health Affinity Bronze 9000 EPO · Expanded Bronze Preferred Accepting new patients
Moda Health Affinity Bronze HDHP 7500 EPO · Expanded Bronze Preferred Accepting new patients
Moda Health Affinity Gold 1000 EPO · Gold Preferred Accepting new patients
Moda Health Affinity Gold 1500 EPO · Gold Preferred Accepting new patients
Moda Health Affinity Gold 250 EPO · Gold Preferred Accepting new patients
Moda Health Affinity Silver 3000 EPO · Silver Preferred Accepting new patients
Moda Health Affinity Silver 3400 EPO · Silver Preferred Accepting new patients
Moda Health Affinity Silver 4500 EPO · Silver Preferred Accepting new patients
Moda Health Affinity Silver 6000 EPO · Silver Preferred Accepting new patients
Moda Health Oregon Standard Bronze Affinity EPO · Expanded Bronze Preferred Accepting new patients
Moda Health Oregon Standard Gold Affinity EPO · Gold Preferred Accepting new patients
Moda Health Oregon Standard Silver Affinity EPO · Silver Preferred Accepting new patients

PacificSource Health Plans

Network data as of Sep 15, 2026, as reported by the insurer.

Show all 9 plans from PacificSource Health Plans
PacificSource Health Plans plans
Plan Plan type Network tier New patients
Core Bronze HSA 7500 EPO · Expanded Bronze Tier Two Accepting new patients
Core Bronze HSA 8300 EPO · Expanded Bronze Tier One Accepting new patients
Core Gold 1500 EPO · Gold Tier Two Accepting new patients
Core Gold 3000 EPO · Gold Tier Two Accepting new patients
Core Silver 4500 EPO · Silver Tier Two Accepting new patients
Core Silver 7500 EPO · Silver Tier Two Accepting new patients
PacificSource Oregon Standard Bronze HSA Plan Core EPO · Expanded Bronze Tier Two Accepting new patients
PacificSource Oregon Standard Gold Plan Core EPO · Gold Tier Two Accepting new patients
PacificSource Oregon Standard Silver Plan Core EPO · Silver Tier Two Accepting new patients

Providence Health Plan

Network data as of Sep 15, 2026, as reported by the insurer.

Show all 8 plans from Providence Health Plan
Providence Health Plan plans
Plan Plan type Network tier New patients
HSA Qualified 7500 Bronze - Choice Network EPO · Expanded Bronze Choice Not accepting new patients
HSA-E Qualified 7500 Bronze - Signature Network EPO · Expanded Bronze EPO Not accepting new patients
Providence Oregon Standard Bronze Plan - Choice Network EPO · Expanded Bronze Choice Not accepting new patients
Providence Oregon Standard Bronze Plan - Signature Network EPO · Expanded Bronze EPO Not accepting new patients
Providence Oregon Standard Gold Plan - Choice Network EPO · Gold Choice Not accepting new patients
Providence Oregon Standard Gold Plan - Signature Network EPO · Gold EPO Not accepting new patients
Providence Oregon Standard Silver Plan - Choice Network EPO · Silver Choice Not accepting new patients
Providence Oregon Standard Silver Plan - Signature Network EPO · Silver EPO Not accepting new patients

This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Robert A. Mairs is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.

Insurance information looks wrong? Let us know

Medicare Enrollment

Dr. Robert A. Mairs is enrolled to bill Medicare as a Practitioner - Obstetrics/gynecology .

Bills through: Good Shepherd Health Care System

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.

Payments received

Drug payment

American Medical Systems $602
Olympus $129
Duchesnay Usa $63

Other

Food and Beverage $568
Travel and Lodging $531

Studies

AT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE

Graduated in 1993

Additional Specialities

  • Obstetrician and Gynecologist

Affiliated hospitals

SAINT ALPHONSUS MEDICAL CENTER - ONTARIO, INC
351 SW 9TH STREET
ONTARIO, 97914 OR
(541) 881-7000
WEISER MEMORIAL HOSPITAL
645 EAST 5TH STREET
WEISER, 83672 ID
(208) 549-0370

Looking for more Gynecologists?

Here are gynecologists in Oregon you may want to explore.

Dr. Faye E. Ameredes
  • Gender: Female
  • Address: Suite 104 2460 Northwest Stewart Parkway Roseburg, 97471, OR
Dr. Amy L. Mulcaster
  • Gender: Female
  • Address: 800 Southwest 13th Avenue Portland, 97205, OR
Dr. Jacqueline Anne Barbour
  • Gender: Female
  • Address: 1670 High Street Eugene, 97401, OR
Dr. Liberato Mukul
  • Gender: Male
  • Address: 7305 Southeast Circuit Drive Suite 260 Hillsboro, 97123, OR
Dr. Ashley McClary
  • Gender: Female
  • Address: Suite 300 929 Southwest Simpson Avenue Bend, 97702, OR
Dr. Richard A. Beyerlein
  • Gender: Male
  • Address: Suite 100 10 Coburg Road Eugene, 97401, OR
Dr. Leonard Laskow
  • Gender: Male
  • Address: 1939 Tamarack Place Ashland, 97520, OR
Dr. Jess W. Hickerson
  • Gender: Male
  • Address: Suite 300 400 Northwest Walnut Boulevard Corvallis, 97330, OR
Dr. Tamme J. Davis
  • Gender: Female
  • Address: 3640 Northwest Samaritan Drive Suite 220 Corvallis, 97330, OR
Dr. Lauren J. Osullivan
  • Gender: Female
  • Address: 1102 Northeast 4th Street Bend, 97701, OR

Questions & Answers

Does Dr. Robert A. Mairs accept patients with PacificSource Health Plans?

Yes, Dr. Robert A. Mairs is listed in-network for PacificSource Health Plans through the ACA Marketplace (Obamacare/HealthCare.gov). See the Marketplace plans section for details.

What conditions does Dr. Robert A. Mairs treat?

Dr. Robert A. Mairs provides treatment for Breastfeeding and Lactation, Cervical Intraepithelial Neoplasia (CIN), Ovarian Cancer, Prenatal Care, Urinary Retention, Uterine Cancer. For the full list see this list.

Where can you meet with Dr. Robert A. Mairs?

Dr. Robert A. Mairs's office is located at 1050 Southwest 3rd Avenue Suite 3200 in Ontario, OR 97914.

Has Dr. Robert A. Mairs affiliation with hospitals?

Dr. Robert A. Mairs is affiliated with SAINT ALPHONSUS MEDICAL CENTER - ONTARIO, INC. For the full list of hospitals see this list.