Christa Johnson Mars, M.D.
Christa Johnson Mars is a Surgery Physician provider (Surgery) practicing in Barron, WI, registered in the NPPES registry with NPI 1235139510 since 2005. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1235139510 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Christa Johnson Mars |
| Credential | M.D. |
| Sex | Female |
| Practice address | 1222 E WOODLAND AVE, Barron, WI, 54812 |
| Phone | 7155373166 |
| Enumeration date | 2005-07-28 |
| Last updated in NPPES | 2012-01-12 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Secondary | 14966R | LA |
| 208600000X | Surgery Physician | Primary | 41999 020 | WI |
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: Christa Mars, M.D. NPI: 1235139510 Taxonomy: 208600000X (Surgery Physician) Address: 1222 E WOODLAND AVE, Barron, WI, 54812
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1154318616 | Eric Nuebel | Individual | Physician Assistant | Barron, WI |
| 1578550034 | Kathleen Nuebel | Individual | Physician Assistant | Barron, WI |
| 1689656811 | Curtis Ongstad | Individual | Family Medicine Physician | Barron, WI |
| 1710967351 | James Leavitt | Individual | Orthopaedic Surgery Physician | Barron, WI |
| 1891768081 | Thomas Stephens | Individual | Physical Therapist | Barron, WI |
| 1508839796 | Sarah Knepper | Individual | Physical Therapist | Barron, WI |
| 1306819594 | Karey Stevenson | Individual | Occupational Therapist | Barron, WI |
| 1932172129 | Nicolle Samuels | Individual | Physical Therapist | Barron, WI |
Verify this record
Cross-check NPI 1235139510 against the authoritative CMS record: view Christa Johnson Mars 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
What is the NPI number for Christa Mars?
Where does Christa Mars practice?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-01-12.