Doctor profile · Federal record

Dr. Emma du, M.D.

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · La Jolla, CA

  • NPI 1649257296
  • Accepts Medicare
  • 36 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
10666 N Torrey Pines RD
La Jolla, CA 920371027
(858) 554-8605
fax (858) 784-5922
Mailing address
File#54433
Los Angeles, CA 900740001

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
July 24, 2007
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
California #A78015
Medicaid
CA #00A780150

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1649257296. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
3,944
Distinct HCPCS
10
Medicare allowed
$167,006
HCPCS Description Services Patients Avg allowed
84165 Protein measurement, serum 488 439 $18
88305 Pathology examination of tissue using a microscope, intermediate complexity 437 254 $38
88341 Special stained specimen slides to examine tissue, each additional procedure 364 86 $29
86334 Immunologic analysis technique on serum (immunofixation) 297 280 $18
88305 Pathology examination of tissue using a microscope, intermediate complexity 249 136 $79
84166 Protein measurement, body fluid 181 179 $18
88342 Special stained specimen slides to examine tissue, initial procedure 180 122 $35
88360 Microscopic genetic analysis of tumor, manual 161 35 $43
88313 Special stained specimen slides to examine tissue including interpretation and report 138 33 $12
86335 Immunologic analysis technique on body fluid, other fluids with concentration 126 125 $18

In context: peer comparison

Among 13 peers in this city , average services per provider: 114. This provider delivers 35× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$260
Transactions
6
Manufacturers
5
Payer (manufacturer) Industry Txns Amount
Phathom Pharmaceuticals, Inc. 1 $125.00
Daiichi Sankyo Inc. 2 $50.41
Boston Scientific Corporation 1 $45.25
Eisai Inc. 1 $21.43
Merck Sharp & Dohme LLC 1 $18.24

By nature of payment

Food and Beverage
$260

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Emma du's medical specialty?
Dr. Emma du practices Anatomic Pathology & Clinical Pathology Physician in La Jolla, CA.
Where does Dr. Emma du practice?
Dr. Emma du practices at 10666 N Torrey Pines RD, La Jolla, CA 920371027. Office phone: 8585548605.
What is Dr. Emma du's NPI?
Dr. Emma du's National Provider Identifier (NPI) is 1649257296, issued by NPPES.
Does Dr. Emma du accept Medicare assignment?
Yes. Dr. Emma du accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Emma du commonly perform?
Top Medicare-reported procedures in 2023: Protein measurement, serum (HCPCS 84165); Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341). Source: CMS Medicare Physician & Other Practitioners file.