Doctor profile · Federal record

Dr. William Hennon, MD

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

  • NPI 1295149896
  • Accepts Medicare
  • 12 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
19420 N 59Th Ave Ste H800
Glendale, AZ 853086977
(602) 889-7365
fax (602) 993-1745

Credentials & registration

NPPES · NUCC
NPI registered
June 2014 — 12 yrs on file
Profile last updated
February 13, 2025
Year of graduation
2014 — 12 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
South Carolina #LL37116 · Illinois #036142905

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1295149896. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
370
Distinct HCPCS
10
Medicare allowed
$29,324
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 121 58 $123
99213 Established patient office or other outpatient visit, 20-29 minutes 78 50 $87
36415 Insertion of needle into vein for collection of blood sample 49 34 $8
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 27 27 $120
80053 Blood test, comprehensive group of blood chemicals 21 18 $10
99204 New patient office or other outpatient visit, 45-59 minutes 20 20 $161
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 17 16 $8
80061 Blood test, lipids (cholesterol and triglycerides) 13 13 $13
84443 Blood test, thyroid stimulating hormone (tsh) 13 13 $16
81003 Automated urinalysis test 11 11 $2

In context: peer comparison

Among 22 peers in this city , average services per provider: 117. This provider delivers 3.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$524
Transactions
5
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals LP 2 $246.63
Bayer Healthcare Pharmaceuticals Inc. 1 $135.32
Novo Nordisk Inc 1 $116.00
Abbott Laboratories 1 $25.93

By nature of payment

Food and Beverage
$408
Education
$116

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
539
Patients
250
Total drug cost
$6,028
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 57 24 $727
Prednisone Generic 56 37 $153
Tramadol Hcl Generic 50 13 $136
Levothyroxine Sodium Generic 44 23 $752
Lisinopril Generic 40 16 $279
Metformin Hcl Generic 39 16 $263
Gabapentin Generic 37 17 $704
Azithromycin Generic 36 34 $168
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 29 19 $733
Amlodipine Besylate Generic 29 14 $209

Frequently asked questions

Auto-generated from federal data
What is Dr. William Hennon's medical specialty?
Dr. William Hennon practices Internal Medicine Physician in Glendale, AZ.
Where does Dr. William Hennon practice?
Dr. William Hennon practices at 19420 N 59Th Ave Ste H800, Glendale, AZ 853086977. Office phone: 6028897365.
What is Dr. William Hennon's NPI?
Dr. William Hennon's National Provider Identifier (NPI) is 1295149896, issued by NPPES.
Does Dr. William Hennon accept Medicare assignment?
Yes. Dr. William Hennon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Hennon commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Insertion of needle into vein for collection of blood sample (HCPCS 36415). Source: CMS Medicare Physician & Other Practitioners file.