Johnny Kao, M.D.
Radiation Oncology Physician · West Islip, NY
Johnny Kao, M.D. is a radiation oncology physician with a practice address in West Islip, New York, and NPI 1639141476, issued on Feb 6, 2006. Check the license (New York 234755, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Johnny Kao
- Credential
- M.D.
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 234755 NY
ME 108316 FL
Self-reported in NPPES; status is on the state search - Practice location
- 1000 Montauk Hwy, West Islip, NY 11795
- Phone
- (631) 376-4047
- Enumerated
- Feb 6, 2006
- Record last updated
- Feb 14, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (631) 376-3392
- Medicaid IDs
- 02678182 NY
002790900 FL - Medicare enrollment
- Enrolled (PECOS I20050816001109); accepts Medicare assignment
- Medical or professional school
- Icahn School Of Medicine At Mount Sinai, 2000
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 449 in New York → Look up another NPI →
Also registered at 1000 Montauk Hwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rashad Abdallah, DOStudent in an Organized Health Care Education/Training Program1356194070
- Almothana Aburumman, MDStudent in an Organized Health Care Education/Training Program1669267506
- Hakeem Afuwape, DODiagnostic Radiology Physician1326292806
- Samantha Ahearn, PA-CPhysician Assistant1952279572
- Michele Ahlers, NURSE PRACTITIONERAdult Health Nurse Practitioner1063037869
- Fahim Ahmed, D.O.Emergency Medicine Physician1619904372
Verify Johnny Kao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 234755Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average radiation oncology physician in 2024
167 Medicare Part D claims for 92 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Tamsulosin Hcl63 claims
- Sucralfate15 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,854.44
9 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
One hospital affiliation
- Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospitals3 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Johnny Kao among 449 radiation oncology physician records in New York
Johnny Kao, M.D. is one of 449 radiation oncology physician records with a practice address in New York. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 53% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2000 · median 2005 among the 331 with a school on file
- Record last updated2013 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in New York
There are 449 radiation oncology physician records in New York.
All 449 in New York → Every provider in West Islip → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Joseph Monge, MDWest Islip, NY 117951932145752
- Wyman Bethune, M.D.Stony Brook, NY 117941144268756
- Kartik Mani, M.D., PH.DStony Brook, NY 117941144586397
- Tae Park, M.D.Stony Brook, NY 117941932141942
- Samuel Ryu, M.D.Stony Brook, NY 117941639239049
- Alexander Slade, M.D., PH.D.Stony Brook, NY 117941093195281
- Alexander Stessin, M.D., PH.D.Stony Brook, NY 117941598992802
- Tamara Weiss, M.D.Stony Brook, NY 117941710920806
Common questions
What is Johnny Kao, M.D.'s NPI number?
Johnny Kao, M.D.'s National Provider Identifier (NPI) is 1639141476, issued on Feb 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Johnny Kao, M.D. located?
The NPPES record lists a practice address at 1000 Montauk Hwy, West Islip, NY, 11795. Phone: (631) 376-4047. Providers update this record themselves, so call before visiting.
How can I verify Johnny Kao, M.D.'s license?
NPPES lists New York license number 234755, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Johnny Kao, M.D. prescribe under Medicare Part D?
In 2024, Johnny Kao, M.D. had 167 Medicare Part D claims for 92 beneficiaries; the average among radiation oncology physician prescribers was 134. Part D covers Medicare prescriptions only.
What is Johnny Kao, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.