Dr. Mark Vincent Johnson, M.D.
Dr. Mark Vincent Johnson is a Diagnostic Radiology Physician provider (Radiology) practicing in Mobile, AL, registered in the NPPES registry with NPI 1740222587 since 2006. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1740222587 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Mark Vincent Johnson |
| Credential | M.D. |
| Sex | Male |
| Practice address | 3719 DAUPHIN ST, Mobile, AL, 36608 |
| Phone | 2513407786 |
| Fax | 2514612030 |
| Enumeration date | 2006-06-12 |
| Last updated in NPPES | 2023-11-15 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 2085R0202X | Diagnostic Radiology Physician | Primary | 21483 | AL |
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 Johnson, M.D. NPI: 1740222587 Taxonomy: 2085R0202X (Diagnostic Radiology Physician) Address: 3719 DAUPHIN ST, Mobile, AL, 36608
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1609793199 | Shash Ann Simpson | Individual | Psychiatric/Mental Health Nurse Practitioner | Mobile, AL |
| 1477556082 | Robert Weinacker | Individual | Specialist | Mobile, AL |
| 1265430235 | Elliot Borak | Individual | Gastroenterology Physician | Mobile, AL |
| 1003814971 | Springhill Hospitals, Inc | Organization | General Acute Care Hospital | Mobile, AL |
| 1962402032 | Christopher Lambert | Individual | Anesthesiology Physician | Mobile, AL |
| 1902807134 | Howard Harper | Individual | Pediatrics Physician | Mobile, AL |
| 1598766727 | George Hall | Individual | Pediatrics Physician | Mobile, AL |
| 1043211279 | Robin Mcnair | Individual | Pediatrics Physician | Mobile, AL |
Verify this record
Cross-check NPI 1740222587 against the authoritative CMS record: view Dr. Mark Vincent 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 2023-11-15.