2026 NPPES data Family Medicine Physician NPI 1083242192 MD
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ANDREW CHANG, MD

Family Medicine Physician in HILO, Hawaii. 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
599
Medicare Part D claims · 134 beneficiaries · Family Medicine Physician avg: 3K
Industry payments
$44.33
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

ANDREW CHANG, MD filed 599 Medicare Part D claims in 2023 as a Family Medicine Physician in HILO, Hawaii.

599
Part D claims, 2023
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.

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

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

599 Top 34% higher than 66% 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%). This entry sits in this band. 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

Board certification likely (heuristic — not verified)

ANDREW 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 ANDREW CHANG, MD?

Quality data not reported

NPI registry status

Active

Issued 04/01/2020

NPI 1083242192

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

599 82% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Hawaii

How Family Medicine Physician compares to other specialties among Hawaii providers

Hawaii providers

Family Medicine Physician share within Hawaii

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Family 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).

ANDREW CHANG, MD is a Family Medicine Physician provider practicing in HILO, Hawaii, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1083242192. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ANDREW CHANG, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 1190 WAIANUENUE AVE, HILO, HI, 96720, with a listed phone of (808) 932-4215. NPI 1083242192 was issued on 04/01/2020. 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 599 prescription claims written by this provider, covering 134 Medicare beneficiaries and totaling roughly $147K in drug spend, with an opioid prescribing rate of 2.0%. 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

1190 WAIANUENUE AVE
HILO, HI 96720

Provider Details

NPI 1083242192
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 04/01/2020

Hospital and facility affiliations

Facilities where ANDREW 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.

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP
FONTANA, CA

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 ANDREW CHANG, MD. Source: openpaymentsdata.cms.gov.

Total received

$44

Largest payer

Averitas Pharma 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.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

599
Total Claims
$147K
Total Drug Cost
134
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,236
Total Day Supply
35,214
Generic Drug Cost
$10K
Opioid Claims
12 (2.0% rate)
Antibiotic Claims
30

Patient Demographics

Average Patient Age
70.5 years
Avg HCC Risk Score
1.18
Gender Split
46% female / 54% male
Age Distribution
<65: 25, 65-74: 62, 75-84: 35, 85+: 12

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Lisinopril
38
Losartan Potassium
38
Atorvastatin Calcium
36
Albuterol Sulfate Hfa
Albuterol Sulfate
35
Amlodipine Besylate
23
Levothyroxine Sodium
21
Allopurinol
18
Furosemide
16
Gabapentin
16
Metformin Hcl
15

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

Family Medicine Physician Overview

How ANDREW CHANG, MD fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

ANDREW CHANG, MD's 599 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Hawaii

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ANDREW CHANG, MD's specialty?
ANDREW CHANG, MD specializes in Family Medicine Physician and practices in HILO, Hawaii. Credentials: MD.
How much does ANDREW CHANG, MD prescribe under Medicare Part D?
In 2023, ANDREW CHANG, MD wrote 599 Medicare Part D claims totaling $147K in drug costs for 134 beneficiaries.
Where is ANDREW CHANG, MD located?
ANDREW CHANG, MD is located at 1190 WAIANUENUE AVE, HILO, HI, 96720. Phone: (808) 932-4215.
What is ANDREW CHANG, MD's NPI number?
ANDREW CHANG, MD's National Provider Identifier (NPI) is 1083242192, issued on 04/01/2020.
Does ANDREW CHANG, MD prescribe opioids?
Yes, ANDREW CHANG, MD had 12 opioid claims in 2023 with an opioid prescribing rate of 2.0%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does ANDREW CHANG, MD prescribe most often?
Based on 2023 Medicare Part D data, ANDREW CHANG, MD's most frequently prescribed drugs include Lisinopril, Losartan Potassium, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANDREW CHANG, MD accept Medicare?
ANDREW CHANG, MD appears in CMS Medicare data with 599 Part D claims and 134 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANDREW CHANG, MD's credentials?
ANDREW CHANG, MD's NPI is 1083242192 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

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