Dr. Thomas Mark Nelson, MD
Dr. Thomas Mark Nelson is a Surgery Physician provider (Surgery) practicing in Duluth, MN, registered in the NPPES registry with NPI 1942251202 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1942251202 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Thomas Mark Nelson |
| Credential | MD |
| Sex | Male |
| Practice address | 920 E 1ST ST, SUITE P302, Duluth, MN, 55805 |
| Phone | 2182496050 |
| Enumeration date | 2006-05-12 |
| Last updated in NPPES | 2021-03-02 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 208600000X | Surgery Physician | Primary | 34418 | MN |
MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 020052636 | Other | MN | MEDICARE RR |
| 732708100 | Medicaid | MN | — |
Copy-ready billing details
Provider: Thomas Nelson, MD NPI: 1942251202 Taxonomy: 208600000X (Surgery Physician) Address: 920 E 1ST ST, SUITE P302, Duluth, MN, 55805
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1609857101 | David Choquette | Individual | Otolaryngology Physician | Duluth, MN |
| 1639150147 | Todd Freeman | Individual | Otolaryngology Physician | Duluth, MN |
| 1881656320 | Sharon Johnson | Individual | Audiologist | Duluth, MN |
| 1205885118 | Wayne Hougas | Individual | Audiologist | Duluth, MN |
| 1710936125 | Vance Bachelder | Individual | Pulmonary Disease Physician | Duluth, MN |
| 1740230903 | Wayne Elmer | Individual | Pulmonary Disease Physician | Duluth, MN |
| 1427008564 | Marvin Nevonen | Individual | Surgery Physician | Duluth, MN |
| 1487604492 | William Himango | Individual | Neurological Surgery Physician | Duluth, MN |
Verify this record
Cross-check NPI 1942251202 against the authoritative CMS record: view Dr. Thomas Mark Nelson 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 2021-03-02.