William Nassour, MD

Internal Medicine · Goodyear, AZ

Call (623) 295-1190 Directions

At a glance

13555 W Mcdowell Rd Ste 205, Goodyear, AZ 85395-2626

NPPES record updated Oct 6, 2021. Public records can lag behind changes at a practice.

Before you call: a quick checklist
  • Are you accepting new patients?
  • Do you accept my specific insurance plan?
  • Do you provide the service I need at this address?
  • Do I need a referral, and what is the earliest appointment?

Insurance participation and appointment availability are not established by these public records.

Medicare & insurance

Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.

How to check your coverage

Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.

Check the official Medicare directory ↗

Practice location

13555 W Mcdowell Rd Ste 205
Goodyear, AZ 85395-2626

Additional reported practice locations

22922 N 40Th Pl
Phoenix, AZ 850508742
Phone: 6232951109
Fax: 6024298595
11295 N 99Th Ave Apt 5-122
Peoria, AZ 853455490
Phone: 6232951190
Fax: 6024298595
REPORTED BACKGROUND

Education & affiliations

Medical / professional school
Not reported in this file
Graduation year
2004
CMS specialties
Internal Medicine

Practice groups

Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.

Source: CMS National Downloadable File · Published Oct 15, 2026.

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PUBLISHED MEDICARE ACTIVITY

Procedures in the public data

Reported activity can help you ask more informed questions about a practice’s services.

No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.

CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology

Source: CMS Utilization Data · Published Oct 15, 2026.

Find providers with a similar service mix

Compare 2024 published Medicare activity in the same reported specialty, here or in another city.

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PAYMENT TRANSPARENCY

Industry-reported general payments

$517.60General payments · 2025
24Reported transactions
13Reporting companies

Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.

See payment purposes and reporting companies

Reported purposes

PurposeAmount
Food and beverage$517.60

Reporting companies

CompanyAmount
OTSUKA AMERICA PHARMACEUTICAL, INC.$84.96
TEVA PHARMACEUTICALS USA, INC.$81.79
LUNDBECK LLC$62.44
ARDELYX, INC.$56.42
BAYER HEALTHCARE PHARMACEUTICALS INC.$42.88
UCB, INC.$41.29
AIMMUNE THERAPEUTICS, INC.$28.57
PROTEGA PHARMACEUTIALS INC$27.92
Other reporting companies$91.33
View official Open Payments profile ↗

Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.

Professional details: NPI, taxonomy & registry record
NPI1104131820
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Registry details

Primary taxonomy
Internal Medicine
Taxonomy code
207R00000X
Enumeration date
Aug 18, 2010
Record updated
Oct 6, 2021
More registry details
Provider type
Individual · Type 1
Reported credentials
MD

Reported taxonomies and licenses

Internal Medicine

207R00000X · Primary

License reported: 47483 AZ

Specialty details in registry

208M00000X

License reported: 47483 AZ

License numbers and credentials are reported to NPPES; HCPList does not independently verify them.

Practice location

13555 W Mcdowell Rd Ste 205
Goodyear, AZ 85395-2626
Phone
(623) 295-1190
Fax
(602) 429-8595
Mailing address
13555 WEST MCDOWELL RD.
STE. 205
GOODYEAR, AZ 853952626
Source: NPPES Source through Oct 18, 2026An NPI does not verify licensure or credentials.

Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.

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