Doctor profile · Federal record

Dr. William Nassour, MD

Internal Medicine Physician (CMS: Internal Medicine) · Hospitalist Physician · Goodyear, AZ

  • NPI 1104131820
  • Accepts Medicare
  • 22 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
13555 W McDowell RD Ste 205
Goodyear, AZ 853952626
(623) 295-1190
fax (602) 429-8595
Additional location
11295 N 99Th Ave Apt 5-122
Peoria, AZ 853455490
Additional location
22922 N 40Th Pl
Phoenix, AZ 850508742
(623) 295-1109
Mailing address
13555 West McDowell RD., Ste. 205
Goodyear, AZ 853952626

Credentials & registration

NPPES · NUCC
NPI registered
August 2010 — 16 yrs on file
Profile last updated
October 6, 2021
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Arizona #47483
Medicaid
AZ #888134

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104131820. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
791
Distinct HCPCS
9
Medicare allowed
$82,300
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 378 121 $115
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 132 82 $77
99309 Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 90 65 $103
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 77 56 $72
99214 Established patient office or other outpatient visit, 30-39 minutes 36 23 $121
99239 Hospital discharge day management, more than 30 minutes 29 28 $111
99213 Established patient office or other outpatient visit, 20-29 minutes 19 13 $85
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 18 18 $168
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 12 12 $129

In context: peer comparison

Among 16 peers in Goodyear Internal Medicine Physician, average services per provider: 229. This provider delivers 3.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$585
Transactions
30
Manufacturers
13
Payer (manufacturer) Industry Txns Amount
Ucb, INC. 10 $156.69
Teva Pharmaceuticals USA, INC. 4 $82.86
Lundbeck LLC 3 $59.78
Scilex Pharmaceuticals INC. 3 $55.83
Alexion Pharmaceuticals, INC. 2 $46.27
Acadia Pharmaceuticals INC 1 $33.10
Novartis Pharmaceuticals Corporation 1 $26.20
Otsuka America Pharmaceutical, INC. 1 $22.97
Ardelyx, INC. 1 $21.64
Sumitomo Pharma America, INC. 1 $21.06
Smith+Nephew, INC. 1 $20.98
Inspire Medical Systems, INC. 1 $20.39
Evoke Pharma, INC. 1 $17.12

By nature of payment

Food and Beverage
$585

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
10,409
Patients
2,345
Total drug cost
$421,584
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 1,488 335 $21,939
Gabapentin Generic 1,080 254 $24,699
Levothyroxine Sodium Generic 870 186 $11,832
Eliquis (Apixaban) Brand 856 132 $257,188
Amlodipine Besylate Generic 714 176 $7,124
Trazodone Hcl Generic 622 166 $8,326
Furosemide Generic 610 151 $3,984
Tamsulosin Hcl Generic 597 131 $11,652
Metformin Hcl Generic 580 126 $6,601
Metoprolol Tartrate Generic 579 139 $5,781

Frequently asked questions

Auto-generated from federal data
What is Dr. William Nassour's medical specialty?
Dr. William Nassour practices Internal Medicine Physician in Goodyear, AZ.
Where does Dr. William Nassour practice?
Dr. William Nassour practices at 13555 W McDowell RD Ste 205, Goodyear, AZ 853952626. Office phone: 6232951190.
What is Dr. William Nassour's NPI?
Dr. William Nassour's National Provider Identifier (NPI) is 1104131820, issued by NPPES.
Does Dr. William Nassour accept Medicare assignment?
Yes. Dr. William Nassour accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Nassour commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent nursing facility care with moderate level of medical decision making (HCPCS 99309). Source: CMS Medicare Physician & Other Practitioners file.