Doctor profile · Federal record

Dr. Keith Kwok, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Neuroradiology Physician · Tracy, CA

  • NPI 1104807569
  • Accepts Medicare
  • MIPS 87.4 / 100 · 2023
  • 22 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1530 North Bessie Avenue, Suite 108
Tracy, CA 95376
(209) 833-2393

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
October 1, 2013
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
California #A96381

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1104807569. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
5,460
Distinct HCPCS
10
Medicare allowed
$175,753
HCPCS Description Services Patients Avg allowed
71045 X-ray of chest, 1 view 1,607 1,321 $10
70450 Ct scan head or brain without contrast 513 486 $45
71046 X-ray of chest, 2 views 203 196 $12
74176 Ct scan of abdomen and pelvis without contrast 161 159 $94
74177 Ct scan of abdomen and pelvis with contrast 157 155 $98
74018 X-ray of abdomen, 1 view 140 124 $10
77067 Screening mammography 140 140 $42
72125 Ct scan of upper spine without contrast 136 135 $52
73502 X-ray of hip, 2-3 views 135 125 $12
76770 Complete ultrasound scan behind abdominal cavity 116 112 $40

In context: peer comparison

Among 6 peers in Tracy Diagnostic Radiology Physician, average services per provider: 76. This provider delivers 72× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$495
Transactions
4
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
AstraZeneca Pharmaceuticals Lp 1 $128.78
Astellas Pharma US INC 1 $125.00
Pfizer INC. 1 $124.98
E.R. Squibb & Sons, L.L.C. 1 $116.13

By nature of payment

Food and Beverage
$495

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Keith Kwok's medical specialty?
Dr. Keith Kwok practices Diagnostic Radiology Physician in Tracy, CA.
Where does Dr. Keith Kwok practice?
Dr. Keith Kwok practices at 1530 North Bessie Avenue, Tracy, CA 95376. Office phone: 2098332393.
What is Dr. Keith Kwok's NPI?
Dr. Keith Kwok's National Provider Identifier (NPI) is 1104807569, issued by NPPES.
Does Dr. Keith Kwok accept Medicare assignment?
Yes. Dr. Keith Kwok accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Keith Kwok commonly perform?
Top Medicare-reported procedures in 2023: X-ray of chest, 1 view (HCPCS 71045); Ct scan head or brain without contrast (HCPCS 70450); X-ray of chest, 2 views (HCPCS 71046). Source: CMS Medicare Physician & Other Practitioners file.