Christopher Chen, MD
NPI 1396734505 · Adult Reconstructive Orthopaedic Surgery Physician · Berkeley, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Christopher Chen, MD is a Adult Reconstructive Orthopaedic Surgery Physician provider in Berkeley, CA (NPI 1396734505).
Provider details
- NPI number
- 1396734505
- Entity type
- Individual
- Primary specialty
- Adult Reconstructive Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A75341 (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
20 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
1,281 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 | 421 | $106 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 316 | $148 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 212 | $191 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 87 | $80 |
| Computer-Assisted Surgery for Muscle and Bone Procedure20985 | 86 | $153 |
| Imaging Guidance for Procedure, 60 Minutes Or Less76000 |
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 |
|---|---|---|
| Meloxicam | 218 | 105 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 154 | 104 |
| Amoxicillin | 87 | 64 |
| Apixabanbrand: Eliquis | 23 | 22 |
| Celecoxib | 21 | — |
| Cephalexin | 18 | 17 |
| Tramadol Hcl | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$7,162 across 3 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
- 2005-10-19
- Last updated
- 2007-07-08
Frequently asked questions
- What is Christopher Chen's NPI number?
- Christopher Chen's National Provider Identifier (NPI) is 1396734505, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Christopher Chen's specialty?
- Christopher Chen is listed in the NPPES registry with a primary specialty of Adult Reconstructive Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Christopher Chen located?
- Christopher Chen's practice location on file with NPPES is 3000 Colby St, Berkeley, CA 94705-2058.
- What is Christopher Chen's phone number?
- The practice phone number listed in the NPPES registry for Christopher Chen is (510) 647-1200.
- Does Christopher Chen accept Medicare?
- Christopher Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Christopher Chen's NPI active?
- Yes — Christopher Chen's NPI (1396734505) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.