Doctor profile · Federal record

Dr. William Dennis, MD

Emergency Medicine Physician · Emergency Medical Services (Emergency Medicine) Physician · Emergency Medical Services (Emergency Medicine) Physician · Glendale, AZ

  • NPI 1629040118
  • 20 yrs on file
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
18701 N 67Th Ave
Glendale, AZ 853087100
(623) 561-1000
Additional location
6202 Springhill Way
Suffolk, VA 234352868
(757) 589-3262
Mailing address
401 W Pennsylvania Ave
Anaconda, MT 597111999

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
April 14, 2021
Specialty taxonomy
207P00000X — NUCC code
State licenses (3)
Arizona #61158 · Virginia #0101231448 · Missouri #MD115260
Medicaid
PA #101277407

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629040118. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
107
Distinct HCPCS
4
Medicare allowed
$11,867
HCPCS Description Services Patients Avg allowed
99284 Emergency department visit with moderate level of medical decision making 46 45 $116
99285 Emergency department visit with high level of medical decision making 29 29 $169
99282 Emergency department visit with straightforward medical decision making 16 16 $38
99283 Emergency department visit with low level of medical decision making 16 15 $65

In context: peer comparison

Among 11 peers in Glendale Emergency Medicine Physician, average services per provider: 80. This provider delivers 1.3× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
41
Patients
40
Total drug cost
$353
Drug Type Claims Patients Total cost
Cephalexin Generic 29 29 $306
Levofloxacin Generic 12 11 $47

Frequently asked questions

Auto-generated from federal data
What is Dr. William Dennis's medical specialty?
Dr. William Dennis practices Emergency Medicine Physician in Glendale, AZ.
Where does Dr. William Dennis practice?
Dr. William Dennis practices at 18701 N 67Th Ave, Glendale, AZ 853087100. Office phone: 6235611000.
What is Dr. William Dennis's NPI?
Dr. William Dennis's National Provider Identifier (NPI) is 1629040118, issued by NPPES.
What procedures does Dr. William Dennis commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with straightforward medical decision making (HCPCS 99282). Source: CMS Medicare Physician & Other Practitioners file.