Doctor profile · Federal record

Dr. William Rule, M.D.

Radiation Oncology Physician (CMS: Radiation Oncology) · Phoenix, AZ

  • NPI 1538346606
  • Accepts Medicare
  • MIPS 78.6 / 100 · 2023
  • 20 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5777 E Mayo Blvd, Department of Radiation Oncology
Phoenix, AZ 850544502
(480) 301-8000

Credentials & registration

NPPES · NUCC
NPI registered
January 2008 — 18 yrs on file
Profile last updated
September 8, 2020
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
Arizona #44461

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538346606. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,343
Distinct HCPCS
10
Medicare allowed
$203,463
HCPCS Description Services Patients Avg allowed
G6002 Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 914 141 $20
77334 Design and construction of complex radiation treatment device 274 105 $59
77300 Calculation of radiation therapy dose 271 82 $32
77427 Radiation treatment management, 5 treatment sessions 217 131 $188
77263 Complex radiation therapy planning 113 108 $166
77301 High precision radiation therapy planning 76 70 $413
77338 Design and construction of radiation treatment device for high precision radiation therapy 76 70 $222
99205 New patient office or other outpatient visit, 60-74 minutes 73 73 $177
77290 Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 37 35 $81
77293 Obtaining respiratory data needed to develop the optimal radiation treatment 34 34 $103

In context: peer comparison

Among 8 peers in Phoenix Radiation Oncology Physician, average services per provider: 202. This provider delivers 12× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Rule's medical specialty?
Dr. William Rule practices Radiation Oncology Physician in Phoenix, AZ.
Where does Dr. William Rule practice?
Dr. William Rule practices at 5777 E Mayo Blvd, Phoenix, AZ 850544502. Office phone: 4803018000.
What is Dr. William Rule's NPI?
Dr. William Rule's National Provider Identifier (NPI) is 1538346606, issued by NPPES.
Does Dr. William Rule accept Medicare assignment?
Yes. Dr. William Rule accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Rule commonly perform?
Top Medicare-reported procedures in 2023: Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (HCPCS G6002); Design and construction of complex radiation treatment device (HCPCS 77334); Calculation of radiation therapy dose (HCPCS 77300). Source: CMS Medicare Physician & Other Practitioners file.