2026 NPPES data Internal Medicine Physician NPI 1467427971 M.D.
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RHODA CHANG, M.D.

Internal Medicine Physician in CARY, 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
2K
Medicare Part D claims · 239 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$18.25
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

RHODA CHANG, M.D. filed 2,328 Medicare Part D claims in 2023 as a Internal Medicine Physician in CARY, North Carolina, prescribing 88% generic.

2K
Part D claims, 2023
88%
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.

RHODA CHANG, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

2,328 Top 14% higher than 86% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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

Board certification likely (heuristic — not verified)

RHODA CHANG, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 RHODA CHANG, M.D.?

Quality data not reported

NPI registry status

Active

Issued 02/18/2006

NPI 1467427971

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

2,328 14% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in North Carolina

How Internal Medicine Physician compares to other specialties among North Carolina providers

North Carolina providers

Internal Medicine Physician share within North Carolina

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within North Carolina

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine Physician) — 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).

RHODA CHANG, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 3701 NW CARY PKWY STE 301, CARY, NC, 27513, with a listed phone of (919) 235-6415. NPI 1467427971 was issued on 02/18/2006. 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 2,328 prescription claims written by this provider, covering 239 Medicare beneficiaries and totaling roughly $215K in drug spend, split 12% brand-name and 88% generic by claim count, with an opioid prescribing rate of 1.9%. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

3701 NW CARY PKWY STE 301
CARY, NC 27513

Provider Details

NPI 1467427971
Specialty Internal Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 02/18/2006

Hospital and facility affiliations

Facilities where RHODA CHANG, M.D. 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.

LEGACY HEALTHCARE SERVICES INC
DURHAM, NC
WAKE SPECIALTY PHYSICIANS LLC
RALEIGH, NC

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 RHODA CHANG, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$18

Largest payer

Boston Scientific 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 · Typical

RHODA CHANG, M.D. — brand share 12.0%
Specialty average (est.)

12% brand-name claims vs 88% generic, on 2,328 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.

2,328
Total Claims
$215K
Total Drug Cost
239
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,636
Total Day Supply
165,429
Brand vs Generic
12% brand / 88% generic
Brand Drug Cost
$171K
Generic Drug Cost
$42K
Opioid Claims
45 (1.9% rate)
Antibiotic Claims
70

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
0.96
Gender Split
69% female / 31% male
Age Distribution
<65: 11, 65-74: 119, 75-84: 80, 85+: 29

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What RHODA CHANG, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
180
Levothyroxine Sodium
119
Amlodipine Besylate
105
Lisinopril
71
Losartan Potassium
67
Gabapentin
66
Rosuvastatin Calcium
58
Metformin Hcl
56
Sertraline Hcl
56
Metoprolol Succinate
51

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Internal Medicine Physician Overview

How RHODA CHANG, M.D. fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

RHODA CHANG, M.D.'s 2,328 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician 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 Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is RHODA CHANG, M.D.'s specialty?
RHODA CHANG, M.D. specializes in Internal Medicine Physician and practices in CARY, North Carolina. Credentials: M.D..
How much does RHODA CHANG, M.D. prescribe under Medicare Part D?
In 2023, RHODA CHANG, M.D. wrote 2,328 Medicare Part D claims totaling $215K in drug costs for 239 beneficiaries.
Where is RHODA CHANG, M.D. located?
RHODA CHANG, M.D. is located at 3701 NW CARY PKWY STE 301, CARY, NC, 27513. Phone: (919) 235-6415.
What is RHODA CHANG, M.D.'s NPI number?
RHODA CHANG, M.D.'s National Provider Identifier (NPI) is 1467427971, issued on 02/18/2006.
Does RHODA CHANG, M.D. prescribe more brand-name or generic drugs?
RHODA CHANG, M.D.'s prescribing is 12% brand-name and 88% generic drugs by claim count, with $171K in brand drug costs.
Does RHODA CHANG, M.D. prescribe opioids?
Yes, RHODA CHANG, M.D. had 45 opioid claims in 2023 with an opioid prescribing rate of 1.9%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does RHODA CHANG, M.D. prescribe most often?
Based on 2023 Medicare Part D data, RHODA CHANG, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RHODA CHANG, M.D. accept Medicare?
RHODA CHANG, M.D. appears in CMS Medicare data with 2,328 Part D claims and 239 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RHODA CHANG, M.D.'s credentials?
RHODA CHANG, M.D.'s NPI is 1467427971 with credentials M.D.. 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