Dr. Mason Chang, MD
- Part D claims, 2024
- 1,010
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2015
- Practice address
- 79-1 Broadway, Elmhurst, NY 11373
- Practice phone
- Call (718) 334-4900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
NYC Health + Hospitals - Elmhurst
Elmhurst, New York
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. Mason Chang is a psychiatrist in Elmhurst, New York
Dr. Chang practices at NYC Health + Hospitals - Elmhurst in Elmhurst, New York.
Dr. Chang's NPI, 1437546736, was assigned on April 24, 2015. Dr. Chang graduated from University at Buffalo School of Medicine in 2007. Dr. Chang holds New York license 282054.
- NPI
- 1437546736NPI Registry (opens in a new tab)
- NPI enumeration date
- April 24, 2015
- NPI status
- Active
- Practice phone
- (718) 334-4900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Mason Chang practices at NYC Health + Hospitals - Elmhurst in Elmhurst, New York
Dr. Chang's primary practice is NYC Health + Hospitals - Elmhurst, at 79-1 Broadway, Elmhurst, NY 11373 in Queens County. The practice phone is (718) 334-4900.
- NYC Health + Hospitals - Elmhurst79-1 Broadway, Elmhurst, NY 11373 · Queens CountyPhone(718) 334-4900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mason Chang is affiliated with 2 sites of care and 1 medical group
Dr. Chang's primary practice is NYC Health + Hospitals - Elmhurst in Elmhurst, New York. The medical group on file is NYC Health + Hospitals. Dmand AI also links Dr. Chang to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mason 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 |
|---|---|
| NYC Health + Hospitals - Elmhurst | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mason Chang is one of 4,448 psychiatrists in New York
Psychiatry is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Chang is licensed in New York.
Specialties and state licenses
- Psychiatry, New YorkPrimary
Psychiatrists near Dr. Chang
Counts of psychiatrists 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. Mason Chang's patients have a median age of 35
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 35, with 100% 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 35
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Dr. Mason Chang wrote 1,010 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 1,010 Medicare Part D claims for 27 patients. 84% of them were for generic drugs. CMS names the drug for 812 of them, across 30 drugs with 11 or more claims each, at $221,164 in total drug cost. In 2023, CMS named 768 claims across 27 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic846 claims84%
- Brand-name and other164 claims16%
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
- Antipsychotics, patients 65 and over9%90 of 1,010 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: 7682024: 8126%
Drugs named by CMS: 30 in 2024, 27 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
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Dr. Mason Chang graduated from University at Buffalo School of Medicine
Dr. Chang graduated from University at Buffalo School of Medicine in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mason 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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. Mason 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. Mason Chang's NPI number?
Dr. Mason Chang's NPI number is 1437546736. It was assigned on April 24, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Mason Chang?
Dr. Mason Chang is a psychiatrist in Elmhurst, New York. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Mason Chang practice?
Dr. Chang practices at 79-1 Broadway, Elmhurst, NY 11373. Dr. Chang's primary practice is NYC Health + Hospitals - Elmhurst in Elmhurst, New York. Dmand AI also links Dr. Chang to 1 group practice or clinic.
What is Dr. Mason Chang's office phone number?
The practice phone on file for Dr. Chang is (718) 334-4900.
What is Dr. Mason Chang's medical license number?
Dr. Chang holds New York license 282054.
What medical group is Dr. Mason Chang part of?
Dr. Chang is linked to NYC Health + Hospitals.
Where did Dr. Mason Chang go to medical school?
Dr. Chang graduated from University at Buffalo School of Medicine in 2007.
What drugs does Dr. Mason Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Olanzapine, Benztropine Mesylate and Gabapentin.
How long has Dr. Mason Chang been practicing?
Dr. Chang graduated from medical school in 2007, 19 years ago.
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