Huiwen Chen, MD
NPI 1134539612 · Nephrology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Huiwen Chen, MD is a Nephrology Physician provider in Philadelphia, PA (NPI 1134539612).
Provider details
- NPI number
- 1134539612
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 25MA10789600 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Nephrology Physician207RN0300X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 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
896 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) |
|---|---|---|
| Other Inpatient Or Outpatient Dialysis Procedure90999 | 276 | $135 |
| Hemodialysis Procedure With Physician Evaluation90935 | 208 | $71 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 177 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 123 | $119 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 69 | $174 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 31 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$32 across 2 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
- 2014-05-05
- Last updated
- 2025-11-19
- Certified
- 2025-11-19
Frequently asked questions
- What is Huiwen Chen's NPI number?
- Huiwen Chen's National Provider Identifier (NPI) is 1134539612, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Huiwen Chen's specialty?
- Huiwen Chen is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Huiwen Chen located?
- Huiwen Chen's practice location on file with NPPES is 3400 Spruce St, Philadelphia, PA 19104-4238.
- What is Huiwen Chen's phone number?
- The practice phone number listed in the NPPES registry for Huiwen Chen is (215) 662-2638.
- Does Huiwen Chen accept Medicare?
- Huiwen Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Huiwen Chen's NPI active?
- Yes — Huiwen Chen's NPI (1134539612) is active in the NPPES registry as of the last update on 2025-11-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.