Doctor profile · Federal record

Dr. Margaret Wei, M.D.

Internal Medicine Physician · Hospitalist Physician · Santa Monica, CA

  • NPI 1629426077
  • MIPS 84.9 / 100 · 2023
  • 10 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
1250 16Th St # C2304
Santa Monica, CA 90404
(310) 319-4698
fax (310) 319-4908
Additional location
14445 Olive View Dr, 2B182
Sylmar, CA 913421437
(818) 395-8328
Additional location
757 Westwood Plz Ste 7501
Los Angeles, CA 900951437
(310) 267-9643
fax (310) 267-3840
Mailing address
5767 W Century Blvd Ste 400
Los Angeles, CA 900455631

Credentials & registration

NPPES · NUCC
NPI registered
May 2016 — 10 yrs on file
Profile last updated
October 7, 2019
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A154742

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629426077. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
713
Distinct HCPCS
5
Medicare allowed
$72,247
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 464 78 $85
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 138 63 $127
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 63 63 $186
99239 Hospital discharge day management, more than 30 minutes 24 24 $124
G0316 Prolonged hospital inpatient or observation care evaluation and management service(s) beyond the total time for the primary service (when the primary service has been selected using time on the date of the primary service); each additional 15 minutes by th 24 11 $33

In context: peer comparison

Among 58 peers in Santa Monica Internal Medicine Physician, average services per provider: 97. This provider delivers 7.4× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Margaret Wei's medical specialty?
Dr. Margaret Wei practices Internal Medicine Physician in Santa Monica, CA.
Where does Dr. Margaret Wei practice?
Dr. Margaret Wei practices at 1250 16Th St # C2304, Santa Monica, CA 90404. Office phone: 3103194698.
What is Dr. Margaret Wei's NPI?
Dr. Margaret Wei's National Provider Identifier (NPI) is 1629426077, issued by NPPES.
What procedures does Dr. Margaret Wei 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); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.