Amdx, LTD in Phoenix, AZ
This organization bills under NPI 1275647851, an organization record issued on Aug 19, 2006 with the primary taxonomy Specialist. Each clinician who works there has their own NPI and license.
Organization recordNPPES, Aug 2026
1275647851
- Legal name
- Amdx, LTD
- Entity
- Type 2 · organization
- Primary taxonomy
- Specialist 174400000X
- Practice location
- 2423 W DUNLAP AVE #175, Phoenix, AZ 85021
- Phone
- 602-424-4450
- Enumerated
- Aug 19, 2006
- Record updated
- Aug 23, 2013
- Authorized official
- Owner/President (title as filed)
5 clinicians CMS lists with Amdx in Phoenix
- Girolamo Arpino, DOInternal Medicine Physician1578710265
- Scott Baldridge, DOSleep Medicine (Family Medicine) Physician1295728897
- Michael Christiansen, MDNeurology Physician1972999308
- Cecilia Hallare, FNP-CFamily Nurse Practitioner1588137855
- Jeffrey Shije, MDNeurology Physician1972894095
Source: CMS Doctors and Clinicians group affiliations, matched by practice name and city.
Checking an organization
- Confirm the business with the Arizona secretary of state.
- Check the HHS-OIG exclusion list for the organization.
- Verify each clinician on their own record and the state license search.
Common questions
Is an organization NPI a license?
No. An NPI identifies who bills. Facilities and the clinicians who work there are licensed separately by the state.
Source: CMS National Plan and Provider Enumeration System (NPPES), monthly file of Aug 9, 2026 (NPPES files on CMS.gov). An NPI identifies who bills; it is not a license.