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

Dr. Patrick Mark O'Brien, MD

Individual provider Orthopaedic Surgery Physician · NPI 1861615155

Dr. Patrick Mark O'Brien, MD is an Orthopedic Surgery in Sioux Falls, South Dakota. Graduated from Creighton University School of Medicine in 2007, 19 years ago. Practices with Avera McKennan, a 962-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in North Carolina and South Dakota.

Years since qualifying
19
Trained at
Creighton University School of Medicine
Licensed in
NC, SD
In the registry since
2007
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

911 E 20th St Ste 300
Sioux Falls, SD 57105-1045
Phone: (605) 322-1300
Fax: (605) 322-1301
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 6100 S Louise Ave Ste 2100, Sioux Falls, SD 57108-6021 — (605) 504-1100

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 10105 (SD)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence 2014-01725 (NC)

Record details

NPI number1861615155
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 11, 2007
Last updated in NPPESOctober 31, 2019

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolCREIGHTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2007 (19 years in practice)
Group practice Avera McKennan — 962 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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