NPI registry status
Active
2026 NPPES data Dermatology Physician NPI 1063493898 MD
Verify on CMS → Chang Son, MD
Dermatology Physician in Englewood, New Jersey.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 15,011 in Dermatology 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
4K
Medicare Part D claims · 949 beneficiaries · Dermatology Physician avg: 799
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 84 pts below national avg 83.5 · Penalty band
Industry payments
$18.4K
94 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Chang Son, MD reported a CMS MIPS final score of 0/100 - below the 83.5 national average - and filed 3,714 Medicare Part D claims in 2024.
- 0/100
- MIPS score · -83 vs avg
- 4K
- Part D claims, 2024
- 94%
- generic prescribing
- Likely
- board-certified (heuristic)
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 Chang Son, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1063493898), first enumerated 11/09/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 3,714 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 0/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- 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
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$18.4K in reported industry payments (94 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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 1063493898 · Dermatology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-LOW · RX-MID · BOOK-THIN · PHOTO-FINISH
- NPI-10 1063493898
- ENUM-LEGACY 2005
- TAX-MID 15K Dermatology Physician
- MIPS-LOW 0/100
- RX-MID 3,714
- BOOK-THIN 392 in New Jersey
- PHOTO-FINISH Joseph Backe, MD · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Son · this provi… 0
Son · this provider
0 MIPS pts
- Mathew Cannava, … 0
Mathew Cannava, M.D.
0 MIPS pts
- Joseph Backe, MD… 0
Joseph Backe, MD
0 MIPS pts
- Bente Berman, M.… 0
Bente Berman, M.D.
0 MIPS pts
- Alison Boudreaux… 0
Alison Boudreaux, M.D.
0 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Chang Son, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
0 ≥ 0th percentile 0% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured providers. 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 whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Chang Son, MD sits
This provider among dermatology physician peers
Across the 5,700 dermatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Chang Son, MD writes more Part D claims than 99% of them and scores higher on MIPS quality than 0% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one dermatology physician peer from a representative sample of 60; the gold marker is Chang Son, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Chang Son, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 Chang Son, MD?
Below national averagePrimary specialty
Dermatology Physician
Medicare Part D claims
3,714 365% vs specialty avg
MIPS final score
0/100 83.5 pts vs avg
Specialty distribution in New Jersey
How Dermatology Physician compares to other specialties among New Jersey providers
Medicare quality performance, MIPS
Chang Son, MD's 2023 MIPS final score plotted against the Dermatology Physician national average
- MIPS Final Score
- 0/100
- vs 83.5 national avg · 2023 performance year
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 | 1063493898 |
|---|---|
| Specialty | Dermatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 11/09/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
0
Final Score
Measured-score avg: 83.5
0
Quality
Reporting: Individual
Hospital and facility affiliations
Facilities where Chang Son, 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.
Hudson MD Group
Fort Lee, NJ
Son Dermatology PC
Englewood, NJ
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Chang Son, MD. Source: openpaymentsdata.cms.gov.
Total received
$18.4K
Largest payer
Incyte Corporation
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Generic-heavy
Chang Son, MD - brand share 6.0%
Dermatology Physician average
6% brand-name claims vs 94% generic, on 3,714 2024 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
3,714
Total Claims
$491K
Total Drug Cost
949
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,888.867
- Total Day Supply
- 98,491
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $395K
- Generic Drug Cost
- $96K
- Antibiotic Claims
- 133
Patient Demographics
- Average Patient Age
- 72.4 years
- Avg HCC Risk Score
- 1.38
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 95, 65-74: 472, 75-84: 299, 85+: 83
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Chang Son, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Triamcinolone Acet…
Triamcinolone Acetonide
654 claims
- Ketoconazole
Ketoconazole
618 claims
- Mupirocin
Mupirocin
316 claims
- Hydrocortisone 254
Hydrocortisone
254 claims
- Halobetasol Propio… 247
Halobetasol Propionate
247 claims
- Levocetirizine Dih… 218
Levocetirizine Dihydrochloride
218 claims
- Fluocinonide 164
Fluocinonide
164 claims
- Ammonium Lactate 161
Ammonium Lactate
161 claims
| Drug | Claims |
|---|---|
| Triamcinolone Acetonide | 654 |
| Ketoconazole | 618 |
| Mupirocin | 316 |
| Hydrocortisone | 254 |
| Halobetasol Propionate | 247 |
| Levocetirizine Dihydrochloride | 218 |
| Fluocinonide | 164 |
| Ammonium Lactate | 161 |
| Clobetasol Propionate | 154 |
| Clindamycin Phosphate | 122 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dermatology Physician Overview
How Chang Son, MD fits within the Dermatology Physician landscape nationally.
15,011
Dermatology Physician Providers in US
53
States with Dermatology Physician
799
Avg Claims per Provider
Chang Son, MD's 3,714 claims are above the specialty average of 799.
Nationwide Dermatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Son, both outside New Jersey so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (0 here).
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Dermatology Physician Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Son.
One of 392 Dermatology Physician providers enrolled in New Jersey, 5 are shown here.
Morgan Abasolo
CRNP
Princeton, NJ
Dr. Marc Abbate
MD
West Orange, NJ
Dr. Heba Abdulla
M.D.
Franklin Lakes, NJ
Dr. Mark Abel
M.D.
Brick, NJ
Dr. Maria Abello-Poblete
M.D.
Mercerville, NJ
Compare Dermatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Chang Son, MD's specialty? ▼
Chang Son, MD specializes in Dermatology Physician and practices in Englewood, New Jersey. Credentials: MD.
How much does Chang Son, MD prescribe under Medicare Part D? ▼
In 2024, Chang Son, MD wrote 3,714 Medicare Part D claims totaling $491K in drug costs for 949 beneficiaries.
What is Chang Son, MD's Medicare quality score? ▼
Chang Son, MD has a CMS MIPS Final Score of 0/100 (Quality: 0). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Chang Son, MD located? ▼
Chang Son, MD is located at 200 GRAND AVE 201, Englewood, NJ, 07631. Phone: (201) 944-3800.
What is Chang Son, MD's NPI number? ▼
Chang Son, MD's National Provider Identifier (NPI) is 1063493898, issued on 11/09/2005.
Does Chang Son, MD prescribe more brand-name or generic drugs? ▼
Chang Son, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $395K in brand drug costs.
How many Dermatology Physician providers are there in the US? ▼
There are 15,011 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 799 Medicare Part D claims per year.
What drugs does Chang Son, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Chang Son, MD's most frequently prescribed drugs include Triamcinolone Acetonide, Ketoconazole, Mupirocin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chang Son, MD accept Medicare? ▼
Chang Son, MD appears in CMS Medicare data with 3,714 Part D claims and 949 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chang Son, MD's credentials? ▼
Chang Son, MD's NPI is 1063493898 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.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- 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.