Doctor profile · Federal record

Dr. Karen Shum, DPM

Foot & Ankle Surgery Podiatrist (CMS: Podiatry) · Torrance, CA

  • NPI 1235483629
  • Accepts Medicare
  • 17 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3330 Lomita Blvd, West Tower 5Th Floor
Torrance, CA 90505
(310) 517-4736
fax (310) 784-8763
Mailing address
3330 Lomita Blvd Fl Tower5
Torrance, CA 905055002

Credentials & registration

NPPES · NUCC
NPI registered
November 2012 — 14 yrs on file
Profile last updated
May 24, 2018
Year of graduation
2009 — 17 yrs since
Specialty taxonomy
213ES0103X — NUCC code
State license (1)
California #E5034

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235483629. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,016
Distinct HCPCS
10
Medicare allowed
$144,292
HCPCS Description Services Patients Avg allowed
11042 Removal of skin and tissue, 20.0 sq cm or less 476 101 $58
11045 Removal of skin and tissue, each additional 20.0 sq cm or less 299 28 $26
99213 Established patient office or other outpatient visit, 20-29 minutes 227 92 $69
97597 Removal of tissue from wound, 20.0 sq cm or less 137 53 $37
11043 Removal of muscle and/or tissue, 20.0 sq cm or less 114 33 $155
15275 Application of skin substitute graft to wound of face, scalp, eyelids, mouth, neck, ears, around eyes, genitals, hands, feet, fingers, or toes, 25.0 sq cm or less of wound 100.0 sq cm or less 105 24 $95
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 102 31 $83
99214 Established patient office or other outpatient visit, 30-39 minutes 82 52 $103
15271 Application of skin substitute graft to wound of trunk, arms, or legs, 25.0 sq cm or less of wound 100.0 sq cm or less 73 21 $87
97598 Removal of tissue from wound, each additional 20.0 sq cm 55 13 $26

In context: peer comparison

Among 10 peers in Torrance Foot & Ankle Surgery Podiatrist, average services per provider: 296. This provider delivers 6.8× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,051
Transactions
36
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Integra LifeSciences Corporation 6 $1,035.15
Mimedx Group, INC. 15 $373.80
Biotissue Holdings INC. 3 $344.43
Urgo Medical North America, LLC 7 $149.67
Solventum Corporation 1 $45.50
LifeNet Health 1 $35.22
Tactile Systems Technology INC 1 $29.63
Paratek Pharmaceuticals, INC. 1 $20.14
Smith+Nephew, INC. 1 $17.74

By nature of payment

Food and Beverage
$1,158
Travel and Lodging
$893

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
151
Patients
97
Total drug cost
$11,210
Drug Type Claims Patients Total cost
Doxycycline Hyclate Generic 34 25 $532
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 29 23 $285
Santyl (Collagenase Clostridium Hist.) Brand 25 22 $9,236
Gentamicin Sulfate Generic 19 15 $882
Acetaminophen-Codeine (Acetaminophen With Codeine) Brand 17 12 $89
Triamcinolone Acetonide Generic 14 0 $85
Gabapentin Generic 13 0 $101

Frequently asked questions

Auto-generated from federal data
What is Dr. Karen Shum's medical specialty?
Dr. Karen Shum practices Foot & Ankle Surgery Podiatrist in Torrance, CA.
Where does Dr. Karen Shum practice?
Dr. Karen Shum practices at 3330 Lomita Blvd, Torrance, CA 90505. Office phone: 3105174736.
What is Dr. Karen Shum's NPI?
Dr. Karen Shum's National Provider Identifier (NPI) is 1235483629, issued by NPPES.
Does Dr. Karen Shum accept Medicare assignment?
Yes. Dr. Karen Shum accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karen Shum commonly perform?
Top Medicare-reported procedures in 2023: Removal of skin and tissue, 20.0 sq cm or less (HCPCS 11042); Removal of skin and tissue, each additional 20.0 sq cm or less (HCPCS 11045); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.