Michael Chan-Wei Kao
Otolaryngology Physician · Fullerton, CA
Michael Chan-Wei Kao is an otolaryngology physician with a practice address in Fullerton, California, and NPI 1639445554, issued on Mar 25, 2012. Check the license (California A161998, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michael Chan-Wei Kao
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- A161998 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2240 N Harbor Blvd Ste 200, Fullerton, CA 92835
- Phone
- (714) 447-4100
- Enumerated
- Mar 25, 2012
- Record last updated
- Aug 9, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20191010002321); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 2240 N Harbor Blvd Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elaine Martin, MDOtolaryngology Physician1720541048
- Eric Sugihara, DOOtolaryngology Physician1154661015
- Tiffany Tran, AU.D.Audiologist1780343699
- Eric Waki, M.D.Specialist1306866462
- Keonseok Yoon, AU.D.Audiologist1093408262
Verify Michael Chan-Wei Kao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A161998Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.0 times the Medicare Part D claims of the average otolaryngology physician in 2024
1,108 Medicare Part D claims for 397 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 1% of claims. 22 claims were for opioids.
Most prescribed
- Pantoprazole Sodium212 claims
- Fluticasone Propionate126 claims
- Azelastine Hcl116 claims
- Ipratropium Bromide114 claims
- Prednisone51 claims
- Doxycycline Hyclate50 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 93.4 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $177.84
6 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 6,429 providers of this specialty with any payment received $1,922.50 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.
Bills Medicare through one group practice
- Greater Orange County Ear Nose Throat Head And Neck Surgeons IncFullerton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Chan-Wei Kao among 1,212 otolaryngology physician records in California
Michael Chan-Wei Kao is one of 1,212 otolaryngology physician records with a practice address in California. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 74% of them.
- NPI issued2012 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2019 · median 2004 among the 818 with a school on file
- Record last updated2019 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in Fullerton → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- John Chew, MDFullerton, CA 928351265494256
- Jason H Kim, MDFullerton, CA 928351225118979
- James Lee, M.DFullerton, CA 928351033316682
- Elaine Martin, MDFullerton, CA 928351720541048
- Eric Sugihara, DOFullerton, CA 928351154661015
- Michael Keefe, MDAnaheim, CA 928071518034479
- Jennifer Zemo, M.D.Anaheim, CA 928071730340183
- Niklaus Eriksen, M.D.Anaheim, CA 928061003064353
Common questions
What is Michael Chan-Wei Kao's NPI number?
Michael Chan-Wei Kao's National Provider Identifier (NPI) is 1639445554, issued on Mar 25, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Michael Chan-Wei Kao located?
The NPPES record lists a practice address at 2240 N Harbor Blvd Ste 200, Fullerton, CA, 92835. Phone: (714) 447-4100. Providers update this record themselves, so call before visiting.
How can I verify Michael Chan-Wei Kao's license?
NPPES lists California license number A161998, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael Chan-Wei Kao prescribe under Medicare Part D?
In 2024, Michael Chan-Wei Kao had 1,108 Medicare Part D claims for 397 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Michael Chan-Wei Kao's MIPS final score?
The 2023 MIPS final score is 93.4 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.