Appointments are available in both the Riverton and Lander offices. Call us at (307) 332-2941

Obstetrics & Gynecology


Empowered Patients


Holistic Care


Close to Home

Our OBGYN team provides excellent care for women – from their first menstrual cycle through menopause. This standard of care involves listening to our patients and taking a holistic approach to their healthcare, in a safe, relaxed and professional environment.

We ensure that our expectant mothers are prepared for the changes that come with pregnancy, receiving exceptional prenatal and postnatal care, with care providers that bring experience and compassion to every patient relationship.

Lander Medical Clinic/Western Family Care: Excellent Care, Close to Home

“Wonderful care! They made me feel really comfortable during my pregnancy and adjusting to the new baby after.”
– Caitlynn

Meet Your Care Providers

Jan Siebersma, MD

Trustworthy, Knowledgeable,
and Reliable

Jeff Anderson, DO

Personable, Positive, and
a Great Bedside Manner

Chase Ommen, CNM

Compassionate, Approachable,
and Supportive

Sam Skelton, CNM

Caring, patient, and empowering of others.

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New Ultrasound Services!

We now offer 2D/3D/4D Ultrasound options!

Now offering elective Ultrasound options! We offer these both to our patients and those not currently our patients. We can print photos of 2-2D and 3-3D ultrasounds.

Cash at time of service, please call to schedule an ultrasound with us and add to that special time of your life.

Empowering You with Information

Q&A with Dr. Siebersma
Find out what Dr. Siebersma would like every patient to know.

Q&A with Dr. Anderson
Dr. Anderson shares his thoughts about the future of women’s healthcare.

Q&A with CNM Ommen
Chase Ommen talks about the unique role of a midwife.

Needing a Prenatal Class?

Watch this video series by Linda Murray of BabyCenter. The series is free to expecting moms!

Meet Our Staff

Our caring staff is here to support you, in whatever stage you may be at in life. We welcome you to our department, and are available to help with any questions you may have.