Doctor profile · Federal record

Dr. Jonathan Tsai

Hospitalist Physician (CMS: Hospitalist) · Hospitalist Physician · San Leandro, CA

  • NPI 1497252522
  • Accepts Medicare
  • MIPS 100.0 / 100 · 2023
  • 8 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2500 Merced St
San Leandro, CA 945774201
(510) 514-2872

Credentials & registration

NPPES · NUCC
NPI registered
April 2018 — 8 yrs on file
Profile last updated
August 21, 2023
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
New York #311648 · California #180276

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1497252522. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
258
Distinct HCPCS
4
Medicare allowed
$27,525
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 164 51 $91
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 37 16 $136
99238 Hospital discharge day management, 30 minutes or less 35 35 $93
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 22 22 $199

In context: peer comparison

Among 3 peers in San Leandro Hospitalist Physician, average services per provider: 64. This provider delivers 4.0× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jonathan Tsai's medical specialty?
Dr. Jonathan Tsai practices Hospitalist Physician in San Leandro, CA.
Where does Dr. Jonathan Tsai practice?
Dr. Jonathan Tsai practices at 2500 Merced St, San Leandro, CA 945774201. Office phone: 5105142872.
What is Dr. Jonathan Tsai's NPI?
Dr. Jonathan Tsai's National Provider Identifier (NPI) is 1497252522, issued by NPPES.
Does Dr. Jonathan Tsai accept Medicare assignment?
Yes. Dr. Jonathan Tsai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathan Tsai commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.