Doctor profile · Federal record

Dr. Charles Liao, M.D.

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

  • NPI 1891001079
  • Accepts Medicare
  • MIPS 75.5 / 100 · 2023
  • 17 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 Pasteur Dr, Grant S101
Stanford, CA 943052200
(650) 723-6961
fax (650) 725-8418

Credentials & registration

NPPES · NUCC
NPI registered
August 2010 — 16 yrs on file
Profile last updated
April 19, 2024
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A113343

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1891001079. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
969
Distinct HCPCS
5
Medicare allowed
$136,445
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 648 192 $137
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 152 146 $200
99238 Hospital discharge day management, 30 minutes or less 113 108 $95
99239 Hospital discharge day management, more than 30 minutes 34 34 $134
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 22 11 $91

In context: peer comparison

Among 95 peers in Stanford Internal Medicine Physician, average services per provider: 85. This provider delivers 11× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
23
Patients
12
Total drug cost
$353
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 23 12 $353

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Charles Liao's medical specialty?
Dr. Charles Liao practices Internal Medicine Physician in Stanford, CA.
Where does Dr. Charles Liao practice?
Dr. Charles Liao practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507236961.
What is Dr. Charles Liao's NPI?
Dr. Charles Liao's National Provider Identifier (NPI) is 1891001079, issued by NPPES.
Does Dr. Charles Liao accept Medicare assignment?
Yes. Dr. Charles Liao accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Charles Liao commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.