Doctor profile · Federal record

Dr. Nhu-Cynthia Tieu, D.O.

Internal Medicine Physician (CMS: Hospitalist) · Harbor City, CA

  • NPI 1225195415
  • Accepts Medicare
  • 22 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
25825 Vermont Ave
Harbor City, CA 907103518
(800) 780-1230

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
November 29, 2021
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #20A9373

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1225195415. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
18
Distinct HCPCS
1
Medicare allowed
$3,286
HCPCS Description Services Patients Avg allowed
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 18 18 $183

In context: peer comparison

Among 3 peers in Harbor City Internal Medicine Physician, average services per provider: 18. This provider delivers 1.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Nhu-Cynthia Tieu's medical specialty?
Dr. Nhu-Cynthia Tieu practices Internal Medicine Physician in Harbor City, CA.
Where does Dr. Nhu-Cynthia Tieu practice?
Dr. Nhu-Cynthia Tieu practices at 25825 Vermont Ave, Harbor City, CA 907103518. Office phone: 8007801230.
What is Dr. Nhu-Cynthia Tieu's NPI?
Dr. Nhu-Cynthia Tieu's National Provider Identifier (NPI) is 1225195415, issued by NPPES.
Does Dr. Nhu-Cynthia Tieu accept Medicare assignment?
Yes. Dr. Nhu-Cynthia Tieu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nhu-Cynthia Tieu commonly perform?
Top Medicare-reported procedures in 2023: Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.