Dr. Matthew Y. Chang, MD
- Part D claims, 2024
- 71
- Hospital affiliations
- 1
- Industry payments
- $621
- Medical group
- 1
- State licenses
- 2
- Practice address
- 3288 Moanalua Rd, Honolulu, HI 96819
- Practice phone
- Call (808) 432-0000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Chang's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Matthew Y. Chang is a neurosurgeon in Honolulu, Hawaii
Dr. Chang practices at Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii, part of Kaiser Permanente.
Dr. Chang's NPI, 1750368205, was assigned on December 27, 2005. Dr. Chang graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1999. Dr. Chang holds Hawaii license MD-16523.
- NPI
- 1750368205NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496785123
- NPI enumeration date
- December 27, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (808) 432-0000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Matthew Y. Chang practices at Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii
Dr. Chang's primary practice is Kaiser Permanente Moanalua Medical Center, at 3288 Moanalua Rd, Honolulu, HI 96819 in Honolulu County. The practice phone is (808) 432-0000.
- Kaiser Permanente Moanalua Medical Center3288 Moanalua Rd, Honolulu, HI 96819 · Honolulu CountyPhone(808) 432-0000
Source: Dmand AI Affiliation Data
Dr. Matthew Y. Chang is affiliated with 1 site of care and 1 medical group
Dr. Chang's primary practice is Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii, part of Kaiser Permanente. The medical group on file is Hawaii Permanente Medical Group (HPMG).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Matthew Y. Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente Moanalua Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Matthew Y. Chang is one of 19 neurosurgeons in Hawaii
Neurological surgery is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dmand AI has Dr. Chang's licenses on file in 2 states: Hawaii and Virginia.
Specialties and state licenses
- Neurological surgery, HawaiiPrimary
- Virginia license
Neurosurgeons near Dr. Chang
Counts of neurosurgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Matthew Y. Chang's patients have a median age of 63
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 63, with 44% women.
Dr. Chang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women44%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Matthew Y. Chang wrote 71 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 71 Medicare Part D claims for 40 patients. 99% of them were for generic drugs. CMS names the drug for 39 of them, across 2 drugs with 11 or more claims each, at $418 in total drug cost. In 2023, CMS named 30 claims across 1 drug.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic70 claims99%
- Brand-name and other1 claims1%
Dr. Chang's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Chang's Part D claims, 2024
- Opioids54%38 of 71 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 302024: 3930%
Drugs named by CMS: 2 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Matthew Y. Chang takes part in Medicare
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Laminectomy or laminotomy (partial removal of spine bones): 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Matthew Y. Chang received $621 in industry payments from 2019 to 2025
CMS Open Payments shows 14 general payments to Dr. Chang from 4 drug and device companies from 2019 to 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $375.
General payments to Dr. Chang by program year, 2019 to 2025
Companies that paid Dr. Chang the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Matthew Y. Chang graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Dr. Chang graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1999.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Matthew Y. Chang's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Matthew Y. Chang
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Matthew Y. Chang's NPI number?
Dr. Matthew Y. Chang's NPI number is 1750368205. It was assigned on December 27, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Matthew Y. Chang?
Dr. Matthew Y. Chang is a neurosurgeon in Honolulu, Hawaii. The primary specialty in the NPI Registry is Neurological Surgery Physician (taxonomy code 207T00000X).
Where does Dr. Matthew Y. Chang practice?
Dr. Chang practices at 3288 Moanalua Rd, Honolulu, HI 96819. Dr. Chang's primary practice is Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii, part of Kaiser Permanente.
What is Dr. Matthew Y. Chang's office phone number?
The practice phone on file for Dr. Chang is (808) 432-0000.
What is Dr. Matthew Y. Chang's medical license number?
Dr. Chang holds Hawaii license MD-16523, one of the licenses on file in 2 states.
Which states has Dr. Matthew Y. Chang been licensed in?
Dmand AI has state licenses on file for Dr. Chang in Hawaii and Virginia.
Which hospitals is Dr. Matthew Y. Chang affiliated with?
Dr. Chang practices at Kaiser Permanente Moanalua Medical Center in Honolulu, Hawaii.
What medical group is Dr. Matthew Y. Chang part of?
Dr. Chang is linked to Hawaii Permanente Medical Group (HPMG).
Does Dr. Matthew Y. Chang accept Medicare?
Yes. CMS lists Dr. Chang as accepting Medicare assignment.
Where did Dr. Matthew Y. Chang go to medical school?
Dr. Chang graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 1999.
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What drugs does Dr. Matthew Y. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Oxycodone HCl and Gabapentin.
Has Dr. Matthew Y. Chang received payments from drug or device companies?
CMS Open Payments shows $621 in general payments to Dr. Chang from 4 companies from 2019 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Matthew Y. Chang been practicing?
Dr. Chang graduated from medical school in 1999, 27 years ago.
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