Dr. Dean R Janssen, DC
Dr. Dean R Janssen is a Chiropractor provider (Chiropractor) practicing in Middletown, RI, registered in the NPPES registry with NPI 1497811947 since 2006. The credential DC stands for Doctor of Chiropractic.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1497811947 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Dean R Janssen |
| Credential | DC |
| Sex | Male |
| Practice address | Middletown, RI, 02842 |
| Phone | 4018475311 |
| Fax | 4018475342 |
| Enumeration date | 2006-12-29 |
| Last updated in NPPES | 2007-07-08 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 111N00000X | Chiropractor | Primary | RI 356 | RI |
| 111N00000X | Chiropractor | Secondary | CH 7285 | FL |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 26631 0 | Other | RI | BLUE CROSS BLUE SHIELD |
Copy-ready billing details
Provider: Dean Janssen, DC NPI: 1497811947 Taxonomy: 111N00000X (Chiropractor) Address: Middletown, RI, 02842
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1912901869 | Steven Freedman | Individual | Otolaryngology Physician | Middletown, RI |
| 1164426011 | James Dobbin | Individual | Otolaryngology Physician | Middletown, RI |
| 1184610636 | Olga Harbar | Individual | Nurse Practitioner | Middletown, RI |
| 1295797389 | Paul Block | Individual | Psychologist | Middletown, RI |
| 1841253150 | Martha Williams | Individual | Psychologist | Middletown, RI |
| 1881657195 | Nancy Davis | Individual | Psychologist | Middletown, RI |
| 1215988175 | Steven Diehl | Individual | Psychologist | Middletown, RI |
| 1619923414 | Jon Ladd | Individual | Psychologist | Middletown, RI |
Verify this record
Cross-check NPI 1497811947 against the authoritative CMS record: view Dr. Dean R Janssen 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.