Esi Mail Pharmacy Service
Esi Mail Pharmacy Service holds 6 active organization NPIs in the federal registry, with practice locations in 5 cities in 5 states. All list mail order pharmacy as their primary taxonomy; each location can bill under its own NPI.
Search the organization with your city to find the NPI for the location you visit or bill.
Find a location's NPITempe, AZ has the most NPIs, 2
Source: CMS NPPES monthly file of Aug 9, 2026, organization NPIs by practice city.
NPIs by year issued
Source: CMS NPPES, enumeration dates.
6 NPIs were issued in 2006 alone, more than in any other year.
Tempe, AZ locations
The city with the most Esi Mail Pharmacy Service NPIs. The full list of all 6 follows.
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1730261199 | 7909 S HARDY DR STE 111, Tempe, AZ | Mail Order Pharmacy | Oct 19, 2006 |
| 1649352006 | 7909 S HARDY DR SUITE 106, Tempe, AZ | Mail Order Pharmacy | Oct 19, 2006 |
All 6 locations, by state and city
| NPI | Location | Primary taxonomy | Issued |
|---|---|---|---|
| 1730261199 | 7909 S HARDY DR STE 111, Tempe, AZ | Mail Order Pharmacy | Oct 19, 2006 |
| 1649352006 | 7909 S HARDY DR SUITE 106, Tempe, AZ | Mail Order Pharmacy | Oct 19, 2006 |
| 1558443911 | 4600 NORTH HANLEY ROAD, St. Louis, MO | Mail Order Pharmacy | Oct 19, 2006 |
| 1376625731 | 2424 LOUISIANA BLVD NE BLDG 240, Albuquerque, NM | Mail Order Pharmacy | Oct 19, 2006 |
| 1285716647 | 433 RIVER ST STE 4004, Troy, NY | Mail Order Pharmacy | Oct 19, 2006 |
| 1538224951 | 4800 E STREET RD, Trevose, PA | Mail Order Pharmacy | Dec 26, 2006 |
Checking an organization
- Match the NPI to the exact location you will visit or bill; each location can have its own.
- Confirm the business entity with the secretary of state.
- Check the HHS-OIG exclusion list for the organization and its owners.
- Verify each clinician you will see on their own record and with the state license search.
Common questions
Why does Esi Mail Pharmacy Service have 6 NPIs?
An organization may obtain more than one Type 2 NPI, for example for separate locations or units that bill on their own. Esi Mail Pharmacy Service's NPIs list practice locations in 5 cities.
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.