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

Dr. Tricia Lawrence Merrigan, MD

Individual provider Surgery Physician · NPI 1467548727

Dr. Tricia Lawrence Merrigan, MD is a General Surgery in Sioux Falls, South Dakota. Graduated from Sanford School of Medicine of University of South Dakota in 2006, 20 years ago. Practices with Avera McKennan, a 962-clinician group and accepts Medicare assignment. Licensed in South Dakota.

Years since qualifying
20
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
SD
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

1000 E 23rd St Ste 360
Sioux Falls, SD 57105-2108
Phone: (605) 322-3950
Fax: (605) 322-3960
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 8158 (SD)

Record details

NPI number1467548727
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 5, 2006
Last updated in NPPESDecember 23, 2013

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 2006 (20 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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