Doctor profile · Federal record

Dr. Emily Chien

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Student in an Organized Health Care Education/Training Program · San Leandro, CA

  • NPI 1548750474
  • Accepts Medicare
  • MIPS 93.4 / 100 · 2023
  • 8 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2500 Merced St
San Leandro, CA 945774201
(718) 245-4798

Credentials & registration

NPPES · NUCC
NPI registered
May 2018 — 8 yrs on file
Profile last updated
November 6, 2024
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
California #197687 · New York #315523

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548750474. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
100
Distinct HCPCS
2
Medicare allowed
$17,508
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 64 64 $199
99284 Emergency department visit with moderate level of medical decision making 36 36 $133

In context: peer comparison

Among 8 peers in this city , average services per provider: 57. This provider delivers 1.8× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Emily Chien's medical specialty?
Dr. Emily Chien practices Emergency Medicine Physician in San Leandro, CA.
Where does Dr. Emily Chien practice?
Dr. Emily Chien practices at 2500 Merced St, San Leandro, CA 945774201. Office phone: 7182454798.
What is Dr. Emily Chien's NPI?
Dr. Emily Chien's National Provider Identifier (NPI) is 1548750474, issued by NPPES.
Does Dr. Emily Chien accept Medicare assignment?
Yes. Dr. Emily Chien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Emily Chien commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.