William Nassour, MD
Internal Medicine Physician · Goodyear, AZ
William Nassour, MD is an internal medicine physician with a practice address in Goodyear, Arizona, and NPI 1104131820, issued on Aug 18, 2010. Check the license (Arizona 47483, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Nassour
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 47483 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 13555 W Mcdowell RD Ste 205, Goodyear, AZ 85395
- Phone
- (623) 295-1190
- Enumerated
- Aug 18, 2010
- Record last updated
- Oct 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (602) 429-8595
- Medicaid ID
- 888134 AZ
- Medicare enrollment
- Enrolled (PECOS I20131113002100); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,853 in Arizona → Look up another NPI →
Also registered at 13555 W Mcdowell RD Ste 205
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William Nassour in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 47483Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
7.3 times the Medicare Part D claims of the average internal medicine physician in 2024
23,220 Medicare Part D claims for 1,126 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 39 claims were for opioids.
Most prescribed
- Atorvastatin Calcium1,234 claims
- Eliquis973 claims
- Gabapentin973 claims
- Levothyroxine Sodium714 claims
- Amlodipine Besylate695 claims
- Tamsulosin Hcl505 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $584.89
30 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Desert Wounds PLLCPhoenix, AZ
- Leading Healthcare Clinic OF Goodyear, LLCGoodyear, AZ
- Leading Healthcare PLLCGlendale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Nassour among 2,853 internal medicine physician records in Arizona
William Nassour, MD is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 60% of them.
- NPI issued2010 · 60% of these records are older, 38% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2004 · median 2003 among the 1,643 with a school on file
- Record last updated2021 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
32 internal medicine physician records list a practice address in Goodyear
They are 32 of the 1,619 NPPES records with a practice address in Goodyear, and 2,853 internal medicine physician records in Arizona.
All 2,853 in Arizona → Every provider in Goodyear → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Travis Allen, MDGoodyear, AZ 853951972572535
- Jared Berkowitz, M.D.Goodyear, AZ 853951386865780
- Mark Burnes, MDGoodyear, AZ 853951073660338
- Leslie Easley, D.OGoodyear, AZ 853951265639637
- Jose Fierro, M.D.Goodyear, AZ 853951922068717
- Samuel Figueroa, M.D.Goodyear, AZ 853951548263148
- Deepanshu Garg, M.D.Goodyear, AZ 853951649377813
- Sumaiya IslamGoodyear, AZ 853951164693511
Common questions
What is William Nassour, MD's NPI number?
William Nassour, MD's National Provider Identifier (NPI) is 1104131820, issued on Aug 18, 2010. An NPI identifies a provider in billing; it is not a license.
Where is William Nassour, MD located?
The NPPES record lists a practice address at 13555 W Mcdowell RD Ste 205, Goodyear, AZ, 85395. Phone: (623) 295-1190. Providers update this record themselves, so call before visiting.
How can I verify William Nassour, MD's license?
NPPES lists Arizona license number 47483, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Nassour, MD prescribe under Medicare Part D?
In 2024, William Nassour, MD had 23,220 Medicare Part D claims for 1,126 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.