2026 NPPES data Student in an Organized Health Care Education/Training Program NPI 1689376774 MD, MBA
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JIYUN CHANG, MD, MBA

Student in an Organized Health Care Education/Training Program in HENDERSONVILLE, North Carolina. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
120
Medicare Part D claims · 34 beneficiaries · Student in an Organized Health Care Education/Training Program avg: 459
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

JIYUN CHANG, MD, MBA filed 120 Medicare Part D claims in 2023 as a Student in an Organized Health Care Education/Training Program in HENDERSONVILLE, North Carolina, prescribing 83% generic.

120
Part D claims, 2023
83%
generic prescribing

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.

JIYUN CHANG, MD, MBA's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

120 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about JIYUN CHANG, MD, MBA?

Quality data not reported

NPI registry status

Active

Issued 03/21/2023

NPI 1689376774

Primary specialty

Student in an Organized Health Care Education/Training Program

High-volume

331,761 US NPIs in this specialty

Medicare Part D claims

120 74% vs specialty avg

2023 prescription claims

Specialty avg: 459

Specialty distribution in North Carolina

How Student in an Organized Health Care Education/Training Program compares to other specialties among North Carolina providers

North Carolina providers

Student in an Organized Health Care Education/Training Program share within North Carolina

1. Student in an Organized Health Care Education/Training Program42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Student in an Organized Health Care Education/Training Program share within North Carolina

Specialty board-certification context

Estimated specialty board-certified rate — Student in an Organized Health Care Education/Training Program (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Student in an Organized Health Care Education/Training Program ABMS/AOA estimate

Est. board-certified rate (Student in an Organized Health Care Education/Training Program) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Student in an Organized Health Care Education/Training Program) — ABMS / AOA estimate

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).

JIYUN CHANG, MD, MBA appears in the CMS NPPES registry as a Student in an Organized Health Care Education/Training Program provider holding MD, MBA credentials at 709 N JUSTICE ST STE B, HENDERSONVILLE, NC, 28791, with a listed phone of (828) 696-1255. NPI 1689376774 was issued on 03/21/2023. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHANG most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 120 prescription claims written by this provider, covering 34 Medicare beneficiaries and totaling roughly $12K in drug spend, split 17% brand-name and 83% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Student in an Organized Health Care Education/Training Program is a high-volume specialty nationwide, with 331,761 enrolled providers across 55 states and an average of 459 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

709 N JUSTICE ST STE B
HENDERSONVILLE, NC 28791

Provider Details

NPI 1689376774
Specialty Student in an Organized Health Care Education/Training Program
Credentials MD, MBA
Gender Female
NPI Issued 03/21/2023

Brand vs generic prescribing mix · Typical

JIYUN CHANG, MD, MBA — brand share 17.0%
Specialty average (est.)

17% brand-name claims vs 83% generic, on 120 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.

120
Total Claims
$12K
Total Drug Cost
34
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
207
Total Day Supply
5,462
Brand vs Generic
17% brand / 83% generic
Brand Drug Cost
$11K
Generic Drug Cost
$1K
Antibiotic Claims
13

Patient Demographics

Average Patient Age
72.1 years
Avg HCC Risk Score
1.75
Gender Split
62% female / 38% male

Student in an Organized Health Care Education/Training Program Overview

How JIYUN CHANG, MD, MBA fits within the Student in an Organized Health Care Education/Training Program landscape nationally.

331,761
Student in an Organized Health Care Education/Training Program Providers in US
55
States with Student in an Organized Health Care Education/Training Program
459
Avg Claims per Provider

JIYUN CHANG, MD, MBA's 120 claims are below the specialty average of 459.

Nearby Student in an Organized Health Care Education/Training Program Providers in North Carolina

Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as CHANG.

Compare Student in an Organized Health Care Education/Training Program nationally: see state-by-state distribution →

Frequently Asked Questions

What is JIYUN CHANG, MD, MBA's specialty?
JIYUN CHANG, MD, MBA specializes in Student in an Organized Health Care Education/Training Program and practices in HENDERSONVILLE, North Carolina. Credentials: MD, MBA.
How much does JIYUN CHANG, MD, MBA prescribe under Medicare Part D?
In 2023, JIYUN CHANG, MD, MBA wrote 120 Medicare Part D claims totaling $12K in drug costs for 34 beneficiaries.
Where is JIYUN CHANG, MD, MBA located?
JIYUN CHANG, MD, MBA is located at 709 N JUSTICE ST STE B, HENDERSONVILLE, NC, 28791. Phone: (828) 696-1255.
What is JIYUN CHANG, MD, MBA's NPI number?
JIYUN CHANG, MD, MBA's National Provider Identifier (NPI) is 1689376774, issued on 03/21/2023.
Does JIYUN CHANG, MD, MBA prescribe more brand-name or generic drugs?
JIYUN CHANG, MD, MBA's prescribing is 17% brand-name and 83% generic drugs by claim count, with $11K in brand drug costs.
How many Student in an Organized Health Care Education/Training Program providers are there in the US?
There are 331,761 Student in an Organized Health Care Education/Training Program providers across 55 states in the US. The average Student in an Organized Health Care Education/Training Program provider writes 459 Medicare Part D claims per year.
Does JIYUN CHANG, MD, MBA accept Medicare?
JIYUN CHANG, MD, MBA appears in CMS Medicare data with 120 Part D claims and 34 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JIYUN CHANG, MD, MBA's credentials?
JIYUN CHANG, MD, MBA's NPI is 1689376774 with credentials MD, MBA. 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

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.
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