Peter O'Brien, MD
Peter O'Brien is a Surgery Physician provider (Surgery) practicing in Sioux Falls, SD, registered in the NPPES registry with NPI 1407803331 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1407803331 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Peter O'Brien |
| Credential | MD |
| Sex | Male |
| Practice address | 1201 S EUCLID AVE, STE 104, Sioux Falls, SD, 57105 |
| Phone | 6053283840 |
| Fax | 6053283841 |
| Enumeration date | 2006-05-27 |
| Last updated in NPPES | 2008-05-09 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Primary | 2030 | SD |
| 208600000X | Surgery Physician | Secondary | 22313 | MN |
| 208600000X | Surgery Physician | Secondary | 24561 | IA |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Copy-ready billing details
Provider: Peter O'Brien, MD NPI: 1407803331 Taxonomy: 208600000X (Surgery Physician) Address: 1201 S EUCLID AVE, STE 104, Sioux Falls, SD, 57105
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1760486146 | Thomas Schultz | Individual | Endocrinology, Diabetes & Metabolism Physician | Sioux Falls, SD |
| 1306841382 | Timothy O'Shea | Individual | Internal Medicine Physician | Sioux Falls, SD |
| 1760488209 | Robert Seidel | Individual | Family Medicine Physician | Sioux Falls, SD |
| 1467458026 | Richard Klein | Individual | Urology Physician | Sioux Falls, SD |
| 1851344865 | Gregory Magnuson | Individual | Family Medicine Physician | Sioux Falls, SD |
| 1063468130 | Dennis Glatt | Individual | Surgery Physician | Sioux Falls, SD |
| 1710933882 | Karla Statema | Individual | Physician Assistant | Sioux Falls, SD |
| 1144277153 | Kirke Wheeler | Individual | Surgery Physician | Sioux Falls, SD |
Verify this record
Cross-check NPI 1407803331 against the authoritative CMS record: view Peter O'Brien on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-05-09.