Doctor profile · Federal record

Dr. Michael Hsie, MD

Radiation Oncology Physician (CMS: Radiation Oncology) · Oshkosh, WI

  • NPI 1265695704
  • Accepts Medicare
  • 22 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
855 N Westhaven Dr, Department of Radiation Oncology
Oshkosh, WI 549047668
(920) 456-7900
fax (920) 456-7900
Mailing address
11516 N Port Washington RD Ste 107
Mequon, WI 530923478

Credentials & registration

NPPES · NUCC
NPI registered
July 2008 — 18 yrs on file
Profile last updated
October 30, 2025
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
Wisconsin #52572-20
Medicaid
WI #100003522

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1265695704. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
842
Distinct HCPCS
10
Medicare allowed
$76,780
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 251 56 $43
77427 Radiation treatment management, 5 treatment sessions 140 58 $184
77300 Calculation of radiation therapy dose 109 34 $32
G6002 Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 96 22 $20
77334 Design and construction of complex radiation treatment device 77 35 $59
77263 Complex radiation therapy planning 36 36 $162
99205 New patient office or other outpatient visit, 60-74 minutes 36 36 $172
99212 Established patient office or other outpatient visit, 10-19 minutes 22 19 $34
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 20 20 $80
77301 High precision radiation therapy planning 20 20 $409

In context: peer comparison

Among 2 peers in Oshkosh Radiation Oncology Physician, average services per provider: 79. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$135
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
IsoRay, INC 1 $110.14
Pharmacosmos Therapeutics INC. 1 $24.39

By nature of payment

Food and Beverage
$135

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
105
Patients
40
Total drug cost
$1,530
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 53 23 $757
Mometasone Furoate Generic 21 17 $316
Nystatin Generic 19 0 $301
Lidocaine Hcl Viscous (Lidocaine Hcl) Brand 12 0 $155

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Hsie's medical specialty?
Dr. Michael Hsie practices Radiation Oncology Physician in Oshkosh, WI.
Where does Dr. Michael Hsie practice?
Dr. Michael Hsie practices at 855 N Westhaven Dr, Oshkosh, WI 549047668. Office phone: 9204567900.
What is Dr. Michael Hsie's NPI?
Dr. Michael Hsie's National Provider Identifier (NPI) is 1265695704, issued by NPPES.
Does Dr. Michael Hsie accept Medicare assignment?
Yes. Dr. Michael Hsie accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Hsie commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Radiation treatment management, 5 treatment sessions (HCPCS 77427); Calculation of radiation therapy dose (HCPCS 77300). Source: CMS Medicare Physician & Other Practitioners file.