Yen Hsun Chen, MD
NPI 1396122487 · Orthopaedic Hand Surgery Physician · Alhambra, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yen Hsun Chen, MD is a Orthopaedic Hand Surgery Physician provider in Alhambra, CA (NPI 1396122487).
Provider details
- NPI number
- 1396122487
- Entity type
- Individual
- Primary specialty
- Orthopaedic Hand Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A168910 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
11 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
4,555 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 694 | $98 |
| Electrical Stimulation (unattended), to One Or More Areas for Indication(s) Other Than Wound Care, As Part of a Therapy Plan of CareG0283 | 625 | $9 |
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 622 | $26 |
| Therapy Procedure Using Manual Technique, Each 15 Minutes97140 | 561 | $22 |
| Therapy Procedure to Re-Educate Brain-To-Nerve-To-Muscle Function, Each 15 Minutes97112 | 479 | $37 |
| Aspiration And/Or Injection of Fluid From Large Joint |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Diclofenac Sodium | 204 | 105 |
| Celecoxib | 146 | 65 |
| Naproxen | 68 | 31 |
| Tramadol Hcl | 57 | 52 |
| Meloxicam | 46 | 24 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 29 | 22 |
| Gabapentin | 28 | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,436 across 15 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
- 2015-04-28
- Last updated
- 2021-07-29
- Certified
- 2021-07-29
Frequently asked questions
- What is Yen Hsun Chen's NPI number?
- Yen Hsun Chen's National Provider Identifier (NPI) is 1396122487, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yen Hsun Chen's specialty?
- Yen Hsun Chen is listed in the NPPES registry with a primary specialty of Orthopaedic Hand Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Yen Hsun Chen located?
- Yen Hsun Chen's practice location on file with NPPES is 707 S Garfield Ave, Alhambra, CA 91801-5859.
- What is Yen Hsun Chen's phone number?
- The practice phone number listed in the NPPES registry for Yen Hsun Chen is (626) 282-1600.
- Does Yen Hsun Chen accept Medicare?
- Yen Hsun Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yen Hsun Chen's NPI active?
- Yes — Yen Hsun Chen's NPI (1396122487) is active in the NPPES registry as of the last update on 2021-07-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.