Doctor profile · Federal record

Dr. Yi-Chiun Wang, M.D.

Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · Palo Alto, CA

  • NPI 1023346459
  • Accepts Medicare
  • 18 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
795 El Camino Real, 2Nd Floor, Lee Building
Palo Alto, CA 943012302
(650) 321-4121
fax (650) 853-6052
Mailing address
325 Distel Cir
Los Altos, CA 940221408

Credentials & registration

NPPES · NUCC
NPI registered
November 2009 — 17 yrs on file
Profile last updated
February 16, 2021
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
California #A110705
Medicaid
CA #1023346459

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023346459. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
411
Distinct HCPCS
6
Medicare allowed
$52,822
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 137 70 $135
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 119 70 $90
99239 Hospital discharge day management, more than 30 minutes 69 64 $132
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 58 55 $195
99238 Hospital discharge day management, 30 minutes or less 15 14 $93
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 13 13 $147

In context: peer comparison

Among 10 peers in Palo Alto Hospitalist Physician, average services per provider: 93. This provider delivers 4.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
25
Patients
11
Total drug cost
$250
Drug Type Claims Patients Total cost
Metoprolol Tartrate Generic 13 0 $61
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 12 11 $189

Frequently asked questions

Auto-generated from federal data
What is Dr. Yi-Chiun Wang's medical specialty?
Dr. Yi-Chiun Wang practices Hospitalist Physician in Palo Alto, CA.
Where does Dr. Yi-Chiun Wang practice?
Dr. Yi-Chiun Wang practices at 795 El Camino Real, Palo Alto, CA 943012302. Office phone: 6503214121.
What is Dr. Yi-Chiun Wang's NPI?
Dr. Yi-Chiun Wang's National Provider Identifier (NPI) is 1023346459, issued by NPPES.
Does Dr. Yi-Chiun Wang accept Medicare assignment?
Yes. Dr. Yi-Chiun Wang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Yi-Chiun Wang commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.