Yan Chen Wongworawat, MD, PHD
NPI 1104359389 · Anatomic Pathology Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yan Chen Wongworawat, MD, PHD is a Anatomic Pathology Physician provider in Loma Linda, CA (NPI 1104359389).
Provider details
- NPI number
- 1104359389
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, PHD
- Sex
- Female
- Sole proprietor
- No
- License
- A163994 (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
9 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
854 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) |
|---|---|---|
| Antibody Evaluation, Each Additional Single Antibody Stain Procedure88350 | 388 | $28 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 193 | $12 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 94 | $37 |
| Antibody Evaluation, Initial Single Antibody Stain Procedure88346 | 58 | $35 |
| Electron Microscopy for Diagnosis88348 | 48 | $76 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 47 | $34 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$57 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
Registry dates
- Enumerated
- 2017-04-05
- Last updated
- 2023-07-17
- Certified
- 2023-07-17
Frequently asked questions
- What is Yan Chen Wongworawat's NPI number?
- Yan Chen Wongworawat's National Provider Identifier (NPI) is 1104359389, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yan Chen Wongworawat's specialty?
- Yan Chen Wongworawat is listed in the NPPES registry with a primary specialty of Anatomic Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Yan Chen Wongworawat located?
- Yan Chen Wongworawat's practice location on file with NPPES is 11234 Anderson St, Loma Linda, CA 92354-2804.
- What is Yan Chen Wongworawat's phone number?
- The practice phone number listed in the NPPES registry for Yan Chen Wongworawat is (909) 558-4094.
- Does Yan Chen Wongworawat accept Medicare?
- Yan Chen Wongworawat is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yan Chen Wongworawat's NPI active?
- Yes — Yan Chen Wongworawat's NPI (1104359389) is active in the NPPES registry as of the last update on 2023-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.