Doctor profile · Federal record

Dr. Vivian Diep, MD

Emergency Medicine Physician · Chicago, IL

  • NPI 1093344913
  • 6 yrs on file
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 4 locations .

NPPES Updated May 11, 2026
Primary practice
4646 N Marine Dr
Chicago, IL 606405759
(773) 878-8700
Additional location
1 Childrens Way # 584
Little Rock, AR 722023500
(501) 686-6993
Additional location
4301 W Markham St # 584
Little Rock, AR 722057101
(501) 686-6993
Show 1 more location
Additional location
3 Erie CT
Oak Park, IL 603022519
(708) 383-6200
Mailing address
740 N Aberdeen St Apt 1113
Chicago, IL 606426074

Credentials & registration

NPPES · NUCC
NPI registered
April 2020 — 6 yrs on file
Profile last updated
February 15, 2024
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Illinois #036.166004

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1093344913. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
72
Distinct HCPCS
2
Medicare allowed
$12,812
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 59 59 $189
99284 Emergency department visit with moderate level of medical decision making 13 13 $129

In context: peer comparison

Among 334 peers in this city , average services per provider: 87. This provider delivers 0.8× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Vivian Diep's medical specialty?
Dr. Vivian Diep practices Emergency Medicine Physician in Chicago, IL.
Where does Dr. Vivian Diep practice?
Dr. Vivian Diep practices at 4646 N Marine Dr, Chicago, IL 606405759. Office phone: 7738788700.
What is Dr. Vivian Diep's NPI?
Dr. Vivian Diep's National Provider Identifier (NPI) is 1093344913, issued by NPPES.
What procedures does Dr. Vivian Diep 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.