Longwen Chen, M.D.
NPI 1881650778 · Clinical Pathology/Laboratory Medicine Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Longwen Chen, M.D. is a Clinical Pathology/Laboratory Medicine Physician provider in Scottsdale, AZ (NPI 1881650778).
Provider details
- NPI number
- 1881650778
- Entity type
- Individual
- Primary specialty
- Clinical Pathology/Laboratory Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 45384 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,191 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 330 | $35 |
| Evaluation of Fine Needle Aspirate With Interpretation and Report88173 | 112 | $66 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 107 | $26 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 95 | $57 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 87 | $77 |
| Cell Examination of Specimen, Selective Cellular Enhancement Technique88112 | 74 | $26 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-21
- Last updated
- 2020-10-06
- Certified
- 2020-10-06
Frequently asked questions
- What is Longwen Chen's NPI number?
- Longwen Chen's National Provider Identifier (NPI) is 1881650778, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Longwen Chen's specialty?
- Longwen Chen is listed in the NPPES registry with a primary specialty of Clinical Pathology/Laboratory Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Longwen Chen located?
- Longwen Chen's practice location on file with NPPES is 13400 E Shea Blvd, Scottsdale, AZ 85259-5452.
- What is Longwen Chen's phone number?
- The practice phone number listed in the NPPES registry for Longwen Chen is (480) 301-8000.
- Does Longwen Chen accept Medicare?
- Longwen Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Longwen Chen's NPI active?
- Yes — Longwen Chen's NPI (1881650778) is active in the NPPES registry as of the last update on 2020-10-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.