NPI registry status
Active
2026 NPPES data Primary Podiatric Medicine Podiatrist NPI 1780768705 D.P.M.
Verify on CMS → Stewart Chang, D.P.M.
Primary Podiatric Medicine Podiatrist in Charlottesville, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,076 in Primary Podiatric Medicine Podiatrist, 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
126
Medicare Part D claims · 76 beneficiaries · Primary Podiatric Medicine Podiatrist avg: 322
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$511.48
17 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Stewart Chang, D.P.M. carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 126 Medicare Part D claims in 2023.
- 75/100
- CMS neutral score · not measured
- 126
- Part D claims, 2023
- 84%
- generic prescribing
- $511.48
- industry payments (Sunshine Act)
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.
Stewart Chang, D.P.M.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
126 ≥ 35th percentile 35% of 1,370,886 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 · 2023
What does the federal data show about Stewart Chang, D.P.M.?
CMS neutral score, not measuredPrimary specialty
Primary Podiatric Medicine Podiatrist
Medicare Part D claims
126 61% vs specialty avg
MIPS final score
75/100
Specialty distribution in Virginia
How Primary Podiatric Medicine Podiatrist compares to other specialties among Virginia providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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).
Stewart Chang, D.P.M. appears in the CMS NPPES registry as a Primary Podiatric Medicine Podiatrist provider holding D.P.M. credentials at 887 RIO EAST CT # A, Charlottesville, VA, 22901, with a listed phone of (434) 979-8116. NPI 1780768705 was issued on 10/25/2006.
Medicare Part D records for calendar year 2023 show 126 prescription claims written by this provider, covering 76 Medicare beneficiaries and totaling roughly $15K in drug spend, split 16% brand-name and 84% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider carries a Final Score of 75/100 for the 2023 performance year, but CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score: this is the neutral performance threshold CMS assigns where nothing was scored, so it is not comparable with clinicians whose score was measured.
Primary Podiatric Medicine Podiatrist is a narrow specialty nationwide, with 1,076 enrolled providers across 50 states and an average of 322 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1780768705 |
|---|---|
| Specialty | Primary Podiatric Medicine Podiatrist |
| Credentials | D.P.M. |
| Gender | Male |
| NPI Issued | 10/25/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Group practice
Hospital and facility affiliations
Facilities where Stewart Chang, D.P.M. 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.
Foot And Ankle Specialists OF The Mid-Atlantic LLC
Charlottesville, VA
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 Stewart Chang, D.P.M.. Source: openpaymentsdata.cms.gov.
Total received
$511
Largest payer
Smith+Nephew, Inc.
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 · Typical
Stewart Chang, D.P.M. - brand share 16.0%
Primary Podiatric Medicine Podiatrist average
16% brand-name claims vs 84% generic, on 126 2023 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 2023.
126
Total Claims
$15K
Total Drug Cost
76
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 132
- Total Day Supply
- 2,754
- Brand vs Generic
- 16% brand / 84% generic
- Brand Drug Cost
- $13K
- Generic Drug Cost
- $2K
- Antibiotic Claims
- 25
Patient Demographics
- Average Patient Age
- 73.4 years
- Avg HCC Risk Score
- 1.49
- Gender Split
- 43% female / 57% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Stewart Chang, D.P.M. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Cephalexin
Cephalexin
15 claims
- Ketoconazole
Ketoconazole
14 claims
- Terconazole
Terconazole
11 claims
| Drug | Claims |
|---|---|
| Cephalexin | 15 |
| Ketoconazole | 14 |
| Terconazole | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Primary Podiatric Medicine Podiatrist in VA →
All providers in Virginia →
Compare specialties →
Primary Podiatric Medicine Podiatrist Overview
How Stewart Chang, D.P.M. fits within the Primary Podiatric Medicine Podiatrist landscape nationally.
1,076
Primary Podiatric Medicine Podiatrist Providers in US
50
States with Primary Podiatric Medicine Podiatrist
322
Avg Claims per Provider
Stewart Chang, D.P.M.'s 126 claims are below the specialty average of 322.
Nearby Primary Podiatric Medicine Podiatrist Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Chang.
Dr. John Aalto
DPM
Portsmouth, VA
Dr. Audrey Arthur
D.P.M.
Virginia Beach, VA
Dr. Mukesh Bhakta
D.P.M.
Gainesville, VA
Dr. Sunshine Brady-Thomas
DPM
Fredericksburg, VA
Dr. Robert Breiner
DPM
Annandale, VA
Compare Primary Podiatric Medicine Podiatrist nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Virginia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Primary Podiatric Medicine Podiatrist peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
What is Stewart Chang, D.P.M.'s specialty? ▼
Stewart Chang, D.P.M. specializes in Primary Podiatric Medicine Podiatrist and practices in Charlottesville, Virginia. Credentials: D.P.M..
How much does Stewart Chang, D.P.M. prescribe under Medicare Part D? ▼
In 2023, Stewart Chang, D.P.M. wrote 126 Medicare Part D claims totaling $15K in drug costs for 76 beneficiaries.
What is Stewart Chang, D.P.M.'s Medicare quality score? ▼
Stewart Chang, D.P.M. has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. 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 Stewart Chang, D.P.M. located? ▼
Stewart Chang, D.P.M. is located at 887 RIO EAST CT # A, Charlottesville, VA, 22901. Phone: (434) 979-8116.
What is Stewart Chang, D.P.M.'s NPI number? ▼
Stewart Chang, D.P.M.'s National Provider Identifier (NPI) is 1780768705, issued on 10/25/2006.
Does Stewart Chang, D.P.M. prescribe more brand-name or generic drugs? ▼
Stewart Chang, D.P.M.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $13K in brand drug costs.
How many Primary Podiatric Medicine Podiatrist providers are there in the US? ▼
There are 1,076 Primary Podiatric Medicine Podiatrist providers across 50 states in the US. The average Primary Podiatric Medicine Podiatrist provider writes 322 Medicare Part D claims per year.
What drugs does Stewart Chang, D.P.M. prescribe most often? ▼
Based on 2023 Medicare Part D data, Stewart Chang, D.P.M.'s most frequently prescribed drugs include Cephalexin, Ketoconazole, Terconazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Stewart Chang, D.P.M. accept Medicare? ▼
Stewart Chang, D.P.M. appears in CMS Medicare data with 126 Part D claims and 76 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stewart Chang, D.P.M.'s credentials? ▼
Stewart Chang, D.P.M.'s NPI is 1780768705 with credentials D.P.M.. 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 (2023). 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 April 2026 (NPPES) / 2023 (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 May 2026.