Dr. Casey Jay Derr, D.C.
Dr. Casey Jay Derr is a Chiropractor provider (Chiropractor) practicing in Mountain View, CA, registered in the NPPES registry with NPI 1770959579 since 2015. The credential DC stands for Doctor of Chiropractic. Practices at Revolutions in Fitness (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1770959579 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Casey Jay Derr |
| Credential | D.C. |
| Sex | Male |
| Practice address | Mountain View, CA, 94043 |
| Phone | 6507017090 |
| Enumeration date | 2015-08-15 |
| Last updated in NPPES | 2016-05-21 |
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 | 33356 | CA |
DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential
Copy-ready billing details
Provider: Casey Derr, D.C. NPI: 1770959579 Taxonomy: 111N00000X (Chiropractor) Address: Mountain View, CA, 94043
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1558723205 | Ken Lau | Individual | Acupuncturist | Mountain View, CA |
| 1619488186 | Joel Klein | Individual | Massage Therapist | Mountain View, CA |
| 1700542776 | Lauren Mindel | Individual | Physical Therapist | Mountain View, CA |
| 1467107110 | Juliet St Germain | Individual | Physical Therapist | Mountain View, CA |
| 1568109965 | Revolutions in Fitness | Organization | Physical Therapist | Mountain View, CA |
Verify this record
Cross-check NPI 1770959579 against the authoritative CMS record: view Dr. Casey Jay Derr 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 2016-05-21.