Mark L. Grim, M.D.
Mark L. Grim is a Anesthesiology Physician provider (Anesthesiology) practicing in Duluth, MN, registered in the NPPES registry with NPI 1609843911 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1609843911 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mark L. Grim |
| Credential | M.D. |
| Sex | Male |
| Practice address | 400 EAST 3RD STREET, Duluth, MN, 55805 |
| Phone | 2187868364 |
| Enumeration date | 2006-03-06 |
| Last updated in NPPES | 2008-10-09 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207L00000X | Anesthesiology Physician | Primary | 46550 | MN |
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: Mark Grim, M.D. NPI: 1609843911 Taxonomy: 207L00000X (Anesthesiology Physician) Address: 400 EAST 3RD STREET, Duluth, MN, 55805
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1972508414 | Catherine Miller | Individual | Pediatric Nurse Practitioner | Duluth, MN |
| 1174524300 | Kenneth Dornfeld | Individual | Radiation Oncology Physician | Duluth, MN |
| 1972505667 | David Arzouman | Individual | Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician | Duluth, MN |
| 1730171588 | Gregory Dubla | Individual | Certified Registered Nurse Anesthetist | Duluth, MN |
| 1730170127 | Karen Lindgren | Individual | Certified Registered Nurse Anesthetist | Duluth, MN |
| 1891779120 | Dawn Drotar | Individual | Hospitalist Physician | Duluth, MN |
| 1134106982 | Nathan Hoffmann | Individual | Urology Physician | Duluth, MN |
| 1831178409 | John Baxter | Individual | Surgery Physician | Duluth, MN |
Verify this record
Cross-check NPI 1609843911 against the authoritative CMS record: view Mark L. Grim 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 2008-10-09.