Doctor profile · Federal record

Dr. Cynthia Kao, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Encinitas, CA

  • NPI 1669635538
  • Accepts Medicare
  • 20 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
354 Santa Fe Dr, Enc 99 Encinitas Hospitalist Associates
Encinitas, CA 920245142
(760) 230-2251

Credentials & registration

NPPES · NUCC
NPI registered
July 2008 — 18 yrs on file
Profile last updated
July 31, 2014
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A103030

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669635538. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
741
Distinct HCPCS
4
Medicare allowed
$86,754
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 419 173 $123
99239 Hospital discharge day management, more than 30 minutes 171 169 $119
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 126 96 $82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 25 25 $179

In context: peer comparison

Among 23 peers in Encinitas Internal Medicine Physician, average services per provider: 308. This provider delivers 2.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
100
Patients
82
Total drug cost
$661
Drug Type Claims Patients Total cost
Cefuroxime (Cefuroxime Axetil) Brand 23 23 $188
Amlodipine Besylate Generic 19 12 $61
Atorvastatin Calcium Generic 12 12 $171
Furosemide Generic 12 12 $35
Metoprolol Succinate Generic 12 12 $80
Pantoprazole Sodium Generic 11 0 $79
Prednisone Generic 11 11 $49

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Cynthia Kao's medical specialty?
Dr. Cynthia Kao practices Internal Medicine Physician in Encinitas, CA.
Where does Dr. Cynthia Kao practice?
Dr. Cynthia Kao practices at 354 Santa Fe Dr, Encinitas, CA 920245142. Office phone: 7602302251.
What is Dr. Cynthia Kao's NPI?
Dr. Cynthia Kao's National Provider Identifier (NPI) is 1669635538, issued by NPPES.
Does Dr. Cynthia Kao accept Medicare assignment?
Yes. Dr. Cynthia Kao accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Cynthia Kao commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.