Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John W Markus, MD

Individual provider Psychiatry Physician · NPI 1700974656

John W Markus, MD practises Psychiatry in Omaha, Nebraska. Graduated from Creighton University School of Medicine in 1993, 33 years ago. Practices with Douglas County Nebraska, a 12-clinician group and accepts Medicare assignment. Licensed in Nebraska.

Years since qualifying
33
Trained at
Creighton University School of Medicine
Licensed in
NE
In the registry since
2006
Specialties on file
2
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

10060 Regency Cir
Omaha, NE 68114-3732 Not confirmed with CMS for 18 years — call before visiting
Phone: (402) 354-1570
Fax: (402) 354-1576
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 19896 (NE)
Child & Adolescent Psychiatry Physician Taxonomy 2084P0804X · Licence 19896 (NE)

Record details

NPI number1700974656
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 10, 2006
Last updated in NPPESNovember 13, 2007

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Douglas County Nebraska — 12 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients25
Services billed 35 a service is one billed item, such as a visit, a test or a procedure
Average patient age47

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Douglas County Nebraska

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 12 clinicians in the practice; 9 are shown here.

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