Doctor profile · Federal record

Dr. William Pao, MD

Radiation Oncology Physician · Grafton, WI

  • NPI 1447293931
  • 20 yrs on file
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
975 Port Washington RD
Grafton, WI 530249201
(262) 329-5000
Mailing address
11516 N Port Washington RD Ste 107
Mequon, WI 530923478

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
September 20, 2023
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
Wisconsin #30607-20
Medicaid
WI #31524600

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1447293931. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,561
Distinct HCPCS
10
Medicare allowed
$126,157
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 503 43 $43
G6002 Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 183 22 $20
77427 Radiation treatment management, 5 treatment sessions 168 55 $184
77334 Design and construction of complex radiation treatment device 148 56 $59
77300 Calculation of radiation therapy dose 122 43 $32
99205 New patient office or other outpatient visit, 60-74 minutes 63 63 $170
77014 Ct guidance for insertion of radiation therapy fields 62 30 $43
77263 Complex radiation therapy planning 55 55 $162
99213 Established patient office or other outpatient visit, 20-29 minutes 36 33 $63
77280 Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 32 27 $37

In context: peer comparison

Among 1 peers in this city , average services per provider: 78. This provider delivers 20× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
14
Patients
0
Total drug cost
$159
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 14 0 $159

Frequently asked questions

Auto-generated from federal data
What is Dr. William Pao's medical specialty?
Dr. William Pao practices Radiation Oncology Physician in Grafton, WI.
Where does Dr. William Pao practice?
Dr. William Pao practices at 975 Port Washington RD, Grafton, WI 530249201. Office phone: 2623295000.
What is Dr. William Pao's NPI?
Dr. William Pao's National Provider Identifier (NPI) is 1447293931, issued by NPPES.
What procedures does Dr. William Pao commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (HCPCS G6002); Radiation treatment management, 5 treatment sessions (HCPCS 77427). Source: CMS Medicare Physician & Other Practitioners file.