WILLIAM MICHALIDES FNP
NPI 1265054688
Nurse Practitioner - Family in Tucson, AZ

Active since May 07, 2020PECOS EnrolledAccepts Medicare Assignment
8050 E LAKESIDE PKWY, TUCSON, AZ 85730(520) 584-5820(520) 514-1514 Get Directions Write a Review

NPPES record last updated: March 4, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Mar 4, 2025, May 7, 2020 (2 updates tracked since 2020).

About William Michalides Fnp NPPES

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

WILLIAM MICHALIDES FNP (NPI 1265054688) is an individual family provider in Tucson, Arizona, licensed in Arizona (240949) and active in the NPI registry since May 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2020).

NPPES Registry Identity

NPI1265054688
Entity TypeIndividualMale
Primary Taxonomy363LF0000X
Provider Legal NameWILLIAM MICHALIDESCredential: FNP
Location Address8050 E LAKESIDE PKWYTucson, AZ 85730-1254
Mailing Address1477 W Commerce CtTucson, AZ 85746-6016 · (520) 792-3293 · Fax (520) 792-4336
Fax(520) 514-1514
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateMay 7, 2020
Last NPPES UpdateMarch 4, 20252 updates tracked since enumeration
NPPES CertifiedMarch 4, 2025
✔ NPI 1265054688 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
Licenses✔ Licensed in AZ · 240949✔ Licensed in NM · 60015
8050 E LAKESIDE PKWY, Tucson, AZ 85730

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

William Michalides Fnp 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.

PECOS PAC ID8426471434
PECOS Enrollment IDI20200709002247, I20260611000374
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 Reassignments

7

Medicare enrollment records show William Michalides reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Community/Behavioral Health
8050 E LAKESIDE PKWY
Tucson, AZ 85730
  • Reassigned Medicare billing, Arizona enrollment
  • 42 clinicians in this Medicare group
Federally Qualified Health Center (FQHC)
901 W HICKORY ST
Deming, NM 88030
  • Reassigned Medicare billing, New Mexico enrollment
  • 322 clinicians in this Medicare group
Rural Health
39726 HARQUAHALA ROAD
Salome, AZ 85348
  • Reassigned Medicare billing, Arizona enrollment
  • Also billed through NPI 1053684555 (Arizona)
  • 113 clinicians in this Medicare group
Geriatric Medicine
2961 SAINT ANTHONY DR
Green Bay, WI 54311
  • Reassigned Medicare billing, Wisconsin enrollment
  • Medicare enrollment name: Altea Medical Wisconsin Sc
  • 24 clinicians in this Medicare group
Geriatric Medicine
6710 MALLERY DR
Lanham, MD 20706
  • Reassigned Medicare billing, Wisconsin enrollment
  • 24 clinicians in this Medicare group
Nurse Practitioner
8820 COLUMBIA 100 PKWY STE 430
Columbia, MD 21045
  • Reassigned Medicare billing, Wisconsin enrollment
  • 14 clinicians in this Medicare group
Health Service
548 S MARINE CORPS. DR
Tamuning, GU 96913
  • Reassigned Medicare billing, Guam enrollment
  • 44 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85730 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.

Other Providers at the Same Location NPPES 17

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

Nurse Practitioner (Psychiatric/Mental Health)
8050 E LAKESIDE PKWY
TUCSON, AZ 85730
Nurse Practitioner (Family)
8050 E LAKESIDE PKWY
TUCSON, AZ 85730
Nurse Practitioner (Psychiatric/Mental Health)
8050 E LAKESIDE PKWY
TUCSON, AZ 85730
Counselor (Professional)
8050 E LAKESIDE PKWY
TUCSON, AZ 85730
Counselor (Mental Health)
8050 E LAKESIDE PKWY
TUCSON, AZ 85730
Counselor (Professional)
8050 E LAKESIDE PKWY
TUCSON, AZ 85730
Nurse Practitioner (Family)
8050 E LAKESIDE PKWY
TUCSON, AZ 85730
Social Worker (Clinical)
8050 E LAKESIDE PKWY
TUCSON, AZ 85730

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 William Michalides's NPI number?

The NPI number for William Michalides is 1265054688. It was assigned to this individual provider in the NPPES registry on May 7, 2020.

Where is William Michalides located?

William Michalides practices at 8050 E Lakeside Pkwy, Tucson, AZ 85730. The listed phone number is (520) 584-5820.

What is William Michalides's specialty?

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

Is William Michalides enrolled in Medicare?

Yes. William Michalides 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 William Michalides's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Michalides reassigns Medicare benefits to 7 organizations: Cope Community Services, Inc. (Tucson, AZ), Presbyterian Medical Services (Deming, NM), La Paz Regional Hospital, Inc. (Salome, AZ), Altea Medical Wisconsin S.C. (Green Bay, WI), Post Acute Medical PLLC (Lanham, MD) and 2 more organizations, listed in the Medicare section above. 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 William Michalides's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Michalides accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health and Blue Cross Blue Shield of Arizona list William Michalides 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 William Michalides was last updated on March 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months 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.