Yi-Wun Chen, PA-C
NPI 1043930084 · Physician Assistant · Pittsfield, MA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yi-Wun Chen, PA-C is a Physician Assistant provider in Pittsfield, MA (NPI 1043930084).
Provider details
- NPI number
- 1043930084
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 1 distinct drug on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 45 | 45 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-08-30
- Last updated
- 2022-09-14
- Certified
- 2022-09-14
Frequently asked questions
- What is Yi-Wun Chen's NPI number?
- Yi-Wun Chen's National Provider Identifier (NPI) is 1043930084, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yi-Wun Chen's specialty?
- Yi-Wun Chen is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Yi-Wun Chen located?
- Yi-Wun Chen's practice location on file with NPPES is 725 North St, Pittsfield, MA 01201-4109.
- What is Yi-Wun Chen's phone number?
- The practice phone number listed in the NPPES registry for Yi-Wun Chen is (413) 447-2000.
- Does Yi-Wun Chen accept Medicare?
- Yi-Wun Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yi-Wun Chen's NPI active?
- Yes — Yi-Wun Chen's NPI (1043930084) is active in the NPPES registry as of the last update on 2022-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.