Mark Steven Johnson, D.D.S.
Mark Steven Johnson is a General Practice Dentistry provider (Dentist) practicing in Richfield, MN, registered in the NPPES registry with NPI 1215949045 since 2006. The credential DDS stands for Doctor of Dental Surgery.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1215949045 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Mark Steven Johnson |
| Credential | D.D.S. |
| Sex | Male |
| Practice address | 6601 LYNDALE AVE S, SUITE 220, Richfield, MN, 55423 |
| Phone | 6128619109 |
| Enumeration date | 2006-08-12 |
| Last updated in NPPES | 2007-07-08 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223G0001X | General Practice Dentistry | Primary | 9555 | MN |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Copy-ready billing details
Provider: Mark Johnson, D.D.S. NPI: 1215949045 Taxonomy: 1223G0001X (General Practice Dentistry) Address: 6601 LYNDALE AVE S, SUITE 220, Richfield, MN, 55423
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1336114644 | Joseph Hicken | Individual | Orthodontics and Dentofacial Orthopedics Dentistry | Richfield, MN |
| 1568431492 | James Marzella | Individual | Dentist | Richfield, MN |
| 1891764635 | Mark Pearce | Individual | Dentist | Richfield, MN |
| 1841251071 | Melanie Fredette | Individual | Dentist | Richfield, MN |
| 1083678445 | Renal Treatment Centers-Illinois Inc | Organization | End-Stage Renal Disease (ESRD) Treatment Clinic/Center | Richfield, MN |
| 1811953300 | Mohammad Alkillesly | Individual | Dentist | Richfield, MN |
| 1316997240 | Ryan Gordon | Individual | Endodontics | Richfield, MN |
| 1255383857 | Christopher Hall | Individual | Nephrology Physician | Richfield, MN |
Verify this record
Cross-check NPI 1215949045 against the authoritative CMS record: view Mark Steven Johnson 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 2007-07-08.