Doctor profile · Federal record

Dr. Michael Kao

Otolaryngology Physician (CMS: Otolaryngology) · Student in an Organized Health Care Education/Training Program · Fullerton, CA

  • NPI 1639445554
  • Accepts Medicare
  • MIPS 93.4 / 100 · 2023
  • 7 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
2240 N Harbor Blvd Ste 200
Fullerton, CA 928352635
(714) 447-4100
Additional location
101 E Valencia Mesa Dr
Fullerton, CA 928353809
Additional location
1950 Sunny Crest Dr Ste 3800
Fullerton, CA 92835
Mailing address
1950 Sunny Crest Dr Ste 3800
Fullerton, CA 928353647

Credentials & registration

NPPES · NUCC
NPI registered
March 2012 — 14 yrs on file
Profile last updated
August 9, 2019
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
207Y00000X — NUCC code
State license (1)
California #A161998

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639445554. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,477
Distinct HCPCS
10
Medicare allowed
$153,570
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 295 186 $98
99204 New patient office or other outpatient visit, 45-59 minutes 177 177 $180
92550 Test for eardrum and muscle function 152 143 $24
92557 Comprehensive hearing and speech recognition test 152 143 $40
99214 Established patient office or other outpatient visit, 30-39 minutes 152 137 $139
69210 Removal of impacted ear wax 149 116 $49
99203 New patient office or other outpatient visit, 30-44 minutes 87 87 $122
31575 Diagnostic exam of voice box using a flexible endoscope 81 70 $147
31231 Diagnostic exam of nasal passages using an endoscope 61 50 $213
99441 Telephone medical discussion with physician, 5-10 minutes 59 50 $62

In context: peer comparison

Among 2 peers in this city , average services per provider: 96. This provider delivers 15× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$178
Transactions
6
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Regeneron Healthcare Solutions, Inc. 2 $59.27
Inspire Medical Systems, Inc. 1 $51.83
GENZYME CORPORATION 2 $47.68
AERIN MEDICAL INC. 1 $19.06

By nature of payment

Food and Beverage
$178

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
774
Patients
389
Total drug cost
$14,600
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 158 71 $1,478
Azelastine Hcl Generic 89 34 $2,777
Fluticasone Propionate Generic 86 39 $1,531
Ipratropium Bromide Generic 84 37 $2,869
Omeprazole Generic 61 11 $527
Prednisone Generic 56 48 $148
Famotidine Generic 34 18 $343
Levocetirizine Dihydrochloride Generic 32 0 $1,216
Doxycycline Hyclate Generic 30 25 $396
Oxycodone Hcl Generic 27 24 $57

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael Kao's medical specialty?
Dr. Michael Kao practices Otolaryngology Physician in Fullerton, CA.
Where does Dr. Michael Kao practice?
Dr. Michael Kao practices at 2240 N Harbor Blvd Ste 200, Fullerton, CA 928352635. Office phone: 7144474100.
What is Dr. Michael Kao's NPI?
Dr. Michael Kao's National Provider Identifier (NPI) is 1639445554, issued by NPPES.
Does Dr. Michael Kao accept Medicare assignment?
Yes. Dr. Michael Kao accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Kao commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204); Test for eardrum and muscle function (HCPCS 92550). Source: CMS Medicare Physician & Other Practitioners file.