Quick answers
- Where does Derek L. Allen see patients?
- Medicare's clinician data lists 1 practice location in Mesa, AZ. Call before your visit to confirm the address.
- What is Derek L. Allen's specialty?
- Medicare lists Mental Health Counselor as the primary specialty.
- Does Derek L. Allen accept Medicare assignment?
- Yes. Medicare's clinician data says Derek L. Allen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Derek L. Allen?
- (602) 633-5032, as listed in official Medicare / NPI Registry data.
- What is Derek L. Allen's NPI number?
- 1790123719. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Derek L. Allen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1234 S Power Rd, Suite 100Mesa, AZ 85206 (602) 633‑5032
Specialties
- Mental Health Counselorprimary
Other mental health counselors in Mesa
Clinicians with the same Medicare primary specialty in Mesa, AZ — not a recommendation.
Clinician information
| Graduation year | 2010 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1790123719 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians