WILLIAM TANNER DANIELL
NPI 1255173019
Physician Assistant in Phoenix, AZ

Q: What is William Daniell's NPI number?

The NPI number for William Daniell is 1255173019. It was assigned to this individual provider in the NPPES registry on June 11, 2024.

Q: What is William Daniell's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for William Daniell was last updated on December 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since June 11, 2024PECOS Enrolled

18444 N 25TH AVE STE 210, PHOENIX, AZ 85023(866) 974-2673(866) 939-2673 Get Directions Write a Review

NPPES record last updated: December 11, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 11, 2025, Jun 11, 2024 (2 updates tracked since 2024).

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About William Tanner Daniell NPPES

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

WILLIAM TANNER DANIELL (NPI 1255173019) is an individual physician assistant in Phoenix, Arizona, licensed in Arizona (11442) and active in the NPI registry since June 2024. He is enrolled in Medicare PECOS and is a graduate of At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa (2025).

NPPES Registry Identity

NPI1255173019

Entity TypeIndividualMale

Primary Taxonomy363A00000X

Provider Legal NameWILLIAM TANNER DANIELL

Location Address18444 N 25TH AVE STE 210Phoenix, AZ 85023-1264

Mailing Address18444 N 25th Ave Ste 210Phoenix, AZ 85023-1264 · (866) 974-2673 · Fax (866) 939-2673

Phone(866) 974-2673

Fax(866) 939-2673

Sole ProprietorNo

Medical School CMSAt Still Un Of Hlth Sciences, Col Of Osteo Med, MesaGraduated 2025

Enumeration DateJune 11, 2024

Last NPPES UpdateDecember 11, 20252 updates tracked since enumeration

NPPES CertifiedDecember 11, 2025

✔ NPI 1255173019 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in AZ · 11442

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

18444 N 25TH AVE STE 210, Phoenix, AZ 85023

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Tanner Daniell is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID6507352358

PECOS Enrollment IDI20251231000870

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85023 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

$69.24 typical visit price

range $17.72 – $137.41

Typical copayment $17.31 (range $4.43 – $34.35)

Most-billed visit code 99213

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 20

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

MS. COURTNEY WHIDDEN PAGE PA-C

Physician Assistant