NANCY RILEY-WILLIAMS FNP-BC
NPI 1790140945
Nurse Practitioner - Family in Green Valley, AZ

Q: What is Nancy Riley-williams's NPI number?

The NPI number for Nancy Riley-williams is 1790140945. It was assigned to this individual provider in the NPPES registry on December 15, 2015.

Q: What is Nancy Riley-williams's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Active since December 15, 2015PECOS Enrolled

1260 S CAMPBELL AVE BLDG 2, GREEN VALLEY, AZ 85614(520) 407-5600(520) 625-8504 Get Directions Write a Review

NPPES record last updated: January 31, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jan 31, 2020, Dec 15, 2015 (2 updates tracked since 2015).

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About Nancy Riley-williams Fnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

NANCY RILEY-WILLIAMS FNP-BC (NPI 1790140945) is an individual family provider in Green Valley, Arizona, licensed in Arizona (AP8348) and active in the NPI registry since December 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1790140945

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameNANCY RILEY-WILLIAMSCredential: FNP-BC

Location Address1260 S CAMPBELL AVE BLDG 2Green Valley, AZ 85614-0503

Mailing Address1260 S Campbell Ave Bldg 2Green Valley, AZ 85614-0503

Phone(520) 407-5600

Fax(520) 625-8504

Sole ProprietorNo

Enumeration DateDecember 15, 2015

Last NPPES UpdateJanuary 31, 20202 updates tracked since enumeration

✔ NPI 1790140945 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in AZ · AP8348

1260 S CAMPBELL AVE BLDG 2, Green Valley, AZ 85614

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Nancy Riley-williams Fnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Nancy Riley-williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Pinnacle Healthcare, LLC

28 mi

Internal Medicine

5663 E GRANT RD
Tucson, AZ 85712

Reassigned Medicare billing, Arizona enrollment
Medicare enrollment name: Pinnacle Health Care LLC
46 clinicians in this Medicare group

NPI 1568793974 (520) 433-4964

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85614 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$85.89 typical visit price

range $55.44 – $168.60

Typical copayment $21.47 (range $13.86 – $42.15)

Most-billed visit code 99203

Established Patient

$98.00 typical visit price

range $17.72 – $137.41

Typical copayment $24.50 (range $4.43 – $34.35)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

2 suppliers12 claims12 services$82.70 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. ASHLEY N. HOLTON FNP-C, PMHNP-BC

Nurse Practitioner (Psychiatric/Mental Health)