Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Mark J. Diercks, MD

Individual provider Psychiatry Physician · NPI 1134283567

Mr. Mark J. Diercks, MD is a Psychiatry in Omaha, Nebraska. Graduated from Creighton University School of Medicine in 1981, 45 years ago. Practices with Alegent Creighton Health, a 138-clinician group and accepts Medicare assignment. Licensed in Nebraska.

Years since qualifying
45
Trained at
Creighton University School of Medicine
Licensed in
NE
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1111 N 13th St Ste 207
Omaha, NE 68102-4251
Phone: (402) 348-1996
Fax: (402) 348-1879
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 16137 (NE)

Record details

NPI number1134283567
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedDecember 20, 2006
Last updated in NPPESMarch 21, 2019
Mailing address1111 North 13th Street, Suite 207, Omaha, NE 68102-4251

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1981 (45 years in practice)
Group practice Alegent Creighton Health — 138 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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