Doctor profile · Federal record

Dr. Johnny Kao, M.D.

Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · West Islip, NY

  • NPI 1639141476
  • Accepts Medicare
  • MIPS 75.0 / 100 · 2023
  • 26 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1000 Montauk Hwy
West Islip, NY 117954927
(631) 376-4047
fax (631) 376-3392
Mailing address
Po Box 5934
New York, NY 100875934

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
February 14, 2013
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State licenses (2)
New York #234755 · Florida #ME 108316
Medicaid (2)
NY #02678182 · FL #002790900

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639141476. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,569
Distinct HCPCS
10
Medicare allowed
$443,303
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 1,408 95 $51
G6017 Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment 657 68 $23
77300 Calculation of radiation therapy dose 522 114 $38
77427 Radiation treatment management, 5 treatment sessions 397 110 $222
99213 Established patient office or other outpatient visit, 20-29 minutes 270 248 $76
77334 Design and construction of complex radiation treatment device 183 108 $68
77263 Complex radiation therapy planning 129 120 $196
77300 Calculation of radiation therapy dose 120 24 $38
77338 Design and construction of radiation treatment device for high precision radiation therapy 116 98 $255
77301 High precision radiation therapy planning 106 94 $476

In context: peer comparison

Among 1 peers in West Islip Radiation Oncology Physician, average services per provider: 169. This provider delivers 27× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,854
Transactions
9
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 1 $2,265.00
Bayer Healthcare Pharmaceuticals INC. 4 $1,493.64
Progenics Pharmaceuticals, INC. 1 $37.97
Novocure INC. 2 $32.83
RefleXion Medical, INC. 1 $25.00

By nature of payment

Consulting Fee
$3,693
Food and Beverage
$161

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
55
Patients
21
Total drug cost
$1,161
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 39 21 $622
Sucralfate Generic 16 0 $539

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Johnny Kao's medical specialty?
Dr. Johnny Kao practices Radiation Oncology Physician in West Islip, NY.
Where does Dr. Johnny Kao practice?
Dr. Johnny Kao practices at 1000 Montauk Hwy, West Islip, NY 117954927. Office phone: 6313764047.
What is Dr. Johnny Kao's NPI?
Dr. Johnny Kao's National Provider Identifier (NPI) is 1639141476, issued by NPPES.
Does Dr. Johnny Kao accept Medicare assignment?
Yes. Dr. Johnny Kao accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Johnny Kao commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment (HCPCS G6017); Calculation of radiation therapy dose (HCPCS 77300). Source: CMS Medicare Physician & Other Practitioners file.