Doctor profile · Federal record

Dr. Patrick Chen, M.D.

Neurocritical Care Physician (CMS: Neurology) · Neurology Physician · Irvine, CA

  • NPI 1295198000
  • Accepts Medicare
  • MIPS 91.2 / 100 · 2023
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1 Medical Plaza Drive
Irvine, CA 926973219
(949) 824-8600
Additional location
200 S Manchester Ave Ste 300
Orange, CA 928683219
(714) 456-7352
Mailing address
200 S Manchester Ave Ste 300
Orange, CA 928683219

Credentials & registration

NPPES · NUCC
NPI registered
March 2016 — 10 yrs on file
Profile last updated
November 3, 2022
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
2084A2900X — NUCC code
State license (1)
California #153113

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1295198000. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
143
Distinct HCPCS
3
Medicare allowed
$25,944
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 66 21 $222
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 48 27 $125
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 29 28 $182

In context: peer comparison

Among 1 peers in Irvine Neurocritical Care Physician, average services per provider: 47. This provider delivers 3.0× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Patrick Chen's medical specialty?
Dr. Patrick Chen practices Neurocritical Care Physician in Irvine, CA.
Where does Dr. Patrick Chen practice?
Dr. Patrick Chen practices at 1 Medical Plaza Drive, Irvine, CA 926973219. Office phone: 9498248600.
What is Dr. Patrick Chen's NPI?
Dr. Patrick Chen's National Provider Identifier (NPI) is 1295198000, issued by NPPES.
Does Dr. Patrick Chen accept Medicare assignment?
Yes. Dr. Patrick Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patrick Chen commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.