PIONEER HOSPITALISTS, PLLC
NPI 1033177316
Internal Medicine in Chandler, AZ
About Pioneer Hospitalists, Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PIONEER HOSPITALISTS, PLLC (NPI 1033177316) is a healthcare organization registered as an internal medicine in Chandler, Arizona and active in the NPI registry since May 2006. The organization lists Andrea Griffin, Credentialist, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Pioneer Hospitalists, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
119Medicare enrollment records show 119 clinicians reassign Medicare billing to Pioneer Hospitalists, PLLC, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 60 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 9
Nearest to this location (20)
See all 119Chandler, AZ 85286
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Pioneer Hospitalists, PLLC's NPI number?
The NPI number for Pioneer Hospitalists, PLLC is 1033177316. It was assigned to this organization in the NPPES registry on May 3, 2006.
Where is Pioneer Hospitalists, PLLC located?
Pioneer Hospitalists, PLLC is located at 475 S Dobson Rd, Chandler, AZ 85224. The listed phone number is (480) 926-0170.
What is Pioneer Hospitalists, PLLC's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Pioneer Hospitalists, PLLC enrolled in Medicare?
Yes. Pioneer Hospitalists, PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Pioneer Hospitalists, PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 119 clinicians in 9 Medicare specialties reassign their Medicare billing to Pioneer Hospitalists, PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Internal Medicine (81), Hospitalist (12) and Nurse Practitioner (12). Of these, 1 practice at this address and 60 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Pioneer Hospitalists, PLLC accept?
Health plans from Ambetter Health and Ambetter from Arizona Complete Health list Pioneer Hospitalists, PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Pioneer Hospitalists, PLLC was last updated on December 4, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Pioneer Hospitalists, Pllc · NPI 1033177316
Internal Medicine organization in Chandler, Arizona. Organization record, active in the CMS NPPES registry since May 3, 2006.
## Identity
- **NPI:** 1033177316 (Entity type: Organization)
- **Enumerated:** May 3, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Andrea Griffin, CREDENTIALIST
## Practice location
- **Address:** 475 S DOBSON RD, Chandler, AZ 85224-5605
- **Phone:** (480) 926-0170 · **Fax:** (480) 452-0715
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 119 clinicians in 9 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Internal Medicine (81), Hospitalist (12), Nurse Practitioner (12); 1 practice at this address and 60 within 10 miles; [full list](https://npiprofile.com/npi/1033177316/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 4, 2023
- **Other identifiers:** Medicaid 310727 (AZ)
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Source: [NPI Profile](https://npiprofile.com/npi/1033177316) · Data from the CMS NPPES public registry.