NPI registry status
Active
2026 NPPES data Plastic Surgery Physician NPI 1700908019 MD
Verify on CMS → Edwin Chang, MD
Plastic Surgery Physician in Mount Vernon, Washington.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 5,431 in Plastic Surgery Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
143
Medicare Part D claims · 112 beneficiaries · Plastic Surgery Physician avg: 88
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Edwin Chang, MD filed 143 Medicare Part D claims in 2024 as a Plastic Surgery Physician in Mount Vernon, Washington.
- 143
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥34th
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Federal trust snapshot
What official records show about Edwin Chang, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1700908019), first enumerated 04/06/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 143 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Washington statewide board action statistics are published annually — these figures describe aggregate state activity, not Edwin Chang, MD's individual license status. Verify directly with the state medical board.
Source: WMC annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1700908019 · Plastic Surgery Physician
NPI-10 · ENUM-MID · TAX-MID · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1700908019
- ENUM-MID 2007
- TAX-MID 5K Plastic Surgery
- RX-LIGHT 143
- BOOK-THIN 91 in Washington
- PHOTO-ENUM Carl Harrell · 2007
Edwin Chang, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
143 ≥ 34th percentile 34% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Edwin Chang, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Edwin Chang, MD?
Quality data not reportedPrimary specialty
Plastic Surgery Physician
Medicare Part D claims
143 63% vs specialty avg
Specialty distribution in Washington
How Plastic Surgery Physician compares to other specialties among Washington providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Plastic Surgery Physician. Verify directly:
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Practice Address
Provider Details
| NPI | 1700908019 |
|---|---|
| Specialty | Plastic Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/06/2007 |
Hospital and facility affiliations
Facilities where Edwin Chang, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Public Hospital Dist NO 1 Skagit
Mount Vernon, WA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Washington WMC 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~34K Washington medical licensees in 2023 - they are NOT specific to Edwin Chang, MD. To verify Edwin Chang, MD's current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
143
Total Claims
$722
Total Drug Cost
112
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 144.5
- Total Day Supply
- 686
- Brand Drug Cost
- $0
- Generic Drug Cost
- $722
- Opioid Claims
- 114 (79.7% rate)
- Antibiotic Claims
- 22
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 1.12
- Gender Split
- 47% female / 53% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 97 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 13 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Plastic Surgery Physician Overview
How Edwin Chang, MD fits within the Plastic Surgery Physician landscape nationally.
5,431
Plastic Surgery Physician Providers in US
53
States with Plastic Surgery Physician
88
Avg Claims per Provider
Edwin Chang, MD's 143 claims are above the specialty average of 88.
Nationwide Plastic Surgery Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Chang, both outside Washington so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Plastic Surgery Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Chang.
One of 91 Plastic Surgery Physician providers enrolled in Washington, 5 are shown here.
Dr. Alison Bae
MD
Seattle, WA
Dr. David Barker
M.D.
Renton, WA
Dr. Richard Baxter
MD
Mountlake Terrace, WA
Dr. Craig Birgfeld
MD
Seattle, WA
Dr. Stanley Bloustine
M.D.
Ft Lewis, WA
Compare Plastic Surgery Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Edwin Chang, MD's specialty? ▼
Edwin Chang, MD specializes in Plastic Surgery Physician and practices in Mount Vernon, Washington. Credentials: MD.
How much does Edwin Chang, MD prescribe under Medicare Part D? ▼
In 2024, Edwin Chang, MD wrote 143 Medicare Part D claims totaling $722 in drug costs for 112 beneficiaries.
Where is Edwin Chang, MD located? ▼
Edwin Chang, MD is located at 1400 E KINCAID ST, Mount Vernon, WA, 98274. Phone: (360) 428-2586.
What is Edwin Chang, MD's NPI number? ▼
Edwin Chang, MD's National Provider Identifier (NPI) is 1700908019, issued on 04/06/2007.
Does Edwin Chang, MD prescribe opioids? ▼
Yes, Edwin Chang, MD had 114 opioid claims in 2024 with an opioid prescribing rate of 79.7%.
How many Plastic Surgery Physician providers are there in the US? ▼
There are 5,431 Plastic Surgery Physician providers across 53 states in the US. The average Plastic Surgery Physician provider writes 88 Medicare Part D claims per year.
What drugs does Edwin Chang, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Edwin Chang, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Amoxicillin-Clavulanate Potass. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Edwin Chang, MD accept Medicare? ▼
Edwin Chang, MD appears in CMS Medicare data with 143 Part D claims and 112 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Edwin Chang, MD's credentials? ▼
Edwin Chang, MD's NPI is 1700908019 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.
Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.