David Johnstone
David Johnstone is a Registered Nurse provider (Registered Nurse) practicing in Boulder, CO, registered in the NPPES registry with NPI 1194048801 since 2010.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1194048801 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | David Johnstone |
| Sex | Male |
| Practice address | 1333 IRIS AVE, Boulder, CO, 80304 |
| Phone | 3034138500 |
| Enumeration date | 2010-03-09 |
| Last updated in NPPES | 2010-03-09 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 163W00000X | Registered Nurse | Primary | 190220 | CO |
Copy-ready billing details
Provider: David Johnstone NPI: 1194048801 Taxonomy: 163W00000X (Registered Nurse) Address: 1333 IRIS AVE, Boulder, CO, 80304
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1982606521 | Karen Hine | Individual | Psychiatric/Mental Health Nurse Practitioner | Boulder, CO |
| 1679556203 | Elizabeth Cullen | Individual | Nurse Practitioner | Boulder, CO |
| 1003873373 | Kristina Hindert | Individual | Psychiatry Physician | Boulder, CO |
| 1710938816 | Brenda Bridges | Individual | Advanced Practice Midwife | Boulder, CO |
| 1194827378 | Mary Ellen Becker | Individual | Psychiatry Physician | Boulder, CO |
| 1588766778 | Safia Nawroz | Individual | Psychiatry Physician | Boulder, CO |
| 1114020245 | Raquel Cagan | Individual | Clinical Child & Adolescent Psychologist | Boulder, CO |
| 1972606176 | Maria Fiorini | Individual | Community Health Registered Nurse | Boulder, CO |
Verify this record
Cross-check NPI 1194048801 against the authoritative CMS record: view David Johnstone 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
Where does David Johnstone practice?
What is the NPI number for David Johnstone?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-03-09.