Emma Du, M.D.
NPI 1649257296 · Anatomic Pathology & Clinical Pathology Physician · La Jolla, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Emma Du, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in La Jolla, CA (NPI 1649257296).
Provider details
- NPI number
- 1649257296
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A78015 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,472 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 590 | $38 |
| Protein Measurement, Serum84165 | 565 | $18 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 423 | $28 |
| Immunologic Analysis Technique on Serum (immunofixation)86334 | 368 | $18 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 284 | $78 |
| Protein Measurement, Body Fluid84166 | 208 | $18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$260 across 6 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-26
- Last updated
- 2007-07-24
Frequently asked questions
- What is Emma Du's NPI number?
- Emma Du's National Provider Identifier (NPI) is 1649257296, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Emma Du's specialty?
- Emma Du is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Emma Du located?
- Emma Du's practice location on file with NPPES is 10666 N Torrey Pines Rd, La Jolla, CA 92037-1027.
- What is Emma Du's phone number?
- The practice phone number listed in the NPPES registry for Emma Du is (858) 554-8605.
- Does Emma Du accept Medicare?
- Emma Du is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Emma Du's NPI active?
- Yes — Emma Du's NPI (1649257296) is active in the NPPES registry as of the last update on 2007-07-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.