Tom Liang, MD
NPI 1679079503 · Anatomic Pathology & Clinical Pathology Physician · Duarte, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tom Liang, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Duarte, CA (NPI 1679079503).
Provider details
- NPI number
- 1679079503
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- D96662 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,909 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 | 1,473 | $38 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 144 | $35 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 143 | $28 |
| Pathology Examination of Tissue Using a Microscope, High Complexity88309 | 55 | $148 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 25 | $12 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 24 | $27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$143 across 1 record (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
Additional practice locations (3)
- 1450 San Pablo StLos Angeles, CA 90033-5331Phone: (323) 442-9930
- 1200 N State StCt A7eLos Angeles, CA 90033Phone: (323) 409-7148
- 600 N Wolfe StBaltimore, MD 21287-0005Phone: (410) 955-3580
Registry dates
- Enumerated
- 2018-03-31
- Last updated
- 2025-09-07
- Certified
- 2025-09-07
Frequently asked questions
- What is Tom Liang's NPI number?
- Tom Liang's National Provider Identifier (NPI) is 1679079503, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tom Liang's specialty?
- Tom Liang is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Tom Liang located?
- Tom Liang's practice location on file with NPPES is 1500 E. Duarte Road, Duarte, CA 91010.
- What is Tom Liang's phone number?
- The practice phone number listed in the NPPES registry for Tom Liang is (888) 974-4863.
- Does Tom Liang accept Medicare?
- Tom Liang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tom Liang's NPI active?
- Yes — Tom Liang's NPI (1679079503) is active in the NPPES registry as of the last update on 2025-09-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.