TAMMY LOUISE HILLIARD
NPI 1881888972
Nurse Practitioner - Family in Phoenix, AZ
About Tammy Louise Hilliard NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TAMMY LOUISE HILLIARD (NPI 1881888972) is an individual family provider in Phoenix, Arizona, licensed in Arizona (AP2704) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Tammy Louise Hilliard is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Tammy Hilliard reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Phoenix, AZ 85013
- Reassigned Medicare billing, Arizona enrollment
- 15 clinicians in this Medicare group
Chandler, AZ 85248
- Reassigned Medicare billing, Arizona enrollment
- 56 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85020 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 8
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 15
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Tammy Hilliard's NPI number?
The NPI number for Tammy Hilliard is 1881888972. It was assigned to this individual provider in the NPPES registry on August 31, 2007.
Where is Tammy Hilliard located?
Tammy Hilliard practices at 9100 N 2nd St #221, Phoenix, AZ 85020. The listed phone number is (602) 943-9494.
What is Tammy Hilliard's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Tammy Hilliard enrolled in Medicare?
Yes. Tammy Hilliard is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Tammy Hilliard's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tammy Hilliard reassigns Medicare benefits to 2 organizations: Zion Specialty PLLC (Phoenix, AZ) and Zion Medical Group PLLC (Chandler, AZ). Each 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 Tammy Hilliard's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tammy Hilliard accept?
Health plans from Blue Cross Blue Shield of Arizona list Tammy Hilliard 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 Tammy Hilliard was last updated on January 18, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.
# Tammy Louise Hilliard · NPI 1881888972
Family physician in Phoenix, Arizona. Individual provider, active in the CMS NPPES registry since August 31, 2007.
## Identity
- **NPI:** 1881888972 (Entity type: Individual)
- **Enumerated:** August 31, 2007
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** AP2704 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 9100 N 2ND ST, #221, Phoenix, AZ 85020
- **Phone:** (602) 943-9494 · **Fax:** (602) 944-3898
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Zion Specialty PLLC (NPI 1053928267, Phoenix, AZ); Zion Medical Group PLLC (NPI 1184049322, Chandler, AZ) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2007
## Record status
- **NPPES last updated:** January 18, 2008
- **Other identifiers:** Medicare PIN 118369 (AZ)
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Source: [NPI Profile](https://npiprofile.com/npi/1881888972) · Data from the CMS NPPES public registry.