Dr. Michael Lin Chang, MD
- Medicare services, 2024
- 357
- Medicare patients, 2024
- 250
- Part D claims, 2024
- 53
- Hospital affiliations
- 2
- Industry payments
- $176
- Practice address
- 240 Meeting House Ln, Southampton, NY 11968
- Practice phone
- Call (631) 726-8200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Southampton Hospital
Southampton, 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. Michael Lin Chang is an emergency medicine physician in Southampton, New York
Dr. Chang practices at Southampton Hospital in Southampton, New York.
Dr. Chang's NPI, 1366774697, was assigned on February 11, 2010. Dr. Chang graduated from New York Medical College in 2008. Dr. Chang holds New York license 255450.
- NPI
- 1366774697NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1557519998
- NPI enumeration date
- February 11, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (631) 726-8200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Michael Lin Chang practices at Southampton Hospital in Southampton, New York
Dr. Chang's primary practice is Southampton Hospital, at 240 Meeting House Ln, Southampton, NY 11968 in Suffolk County. The practice phone is (631) 726-8200.
- Southampton Hospital240 Meeting House Ln, Southampton, NY 11968 · Suffolk CountyPhone(631) 726-8200
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Michael Lin Chang is affiliated with 4 sites of care and 3 medical groups
Dr. Chang's primary practice is Southampton Hospital in Southampton, New York. Dr. Chang is also affiliated with Long Island Jewish Medical Center. The medical group on file is Meeting House Lane Medical Practice. Dmand AI also links Dr. Chang to 1 more hospital, 2 medical groups and 1 group practice or clinic, each 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. Michael Lin Chang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chang practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Southampton Hospital | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Michael Lin Chang is one of 3,709 emergency medicine physicians in New York
Emergency medicine is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Chang is licensed in New York.
Specialties and state licenses
- Emergency medicine, New YorkPrimary
Emergency medicine physicians near Dr. Chang
Counts of emergency medicine physicians 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. Michael Lin Chang billed Medicare for 357 services in 2024
CMS data shows 357 Medicare services from Dr. Chang across 3 procedure codes in 2024, for 250 Medicare patients. Medicare paid $37,515 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3672024: 24533%
- Tests and treatments
- 2023: 1162024: 1123%
Dr. Chang compared with the New York median for emergency medicine physicians, 2024
- Dr. Chang
- New York median
- Medicare services
- 357vs 21963% above
- Medicare patients
- 250vs 21616% above
- Part D claims
- 12vs 2959% below
Medians across 3,510 emergency medicine physicians in New York with Dmand AI profiles that report each measure.
Dr. Chang's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Chang?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other emergency medicine physicians in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Michael Lin Chang treated 250 Medicare patients in 2024, average age 77
CMS counts 250 Medicare patients who saw Dr. Chang in 2024. The largest group is 75 to 84, with 92 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.57, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Chang's median patient age at 63, with 49% women.
Dr. Chang's Medicare patients by age, 2024
Dr. Chang's Medicare patients by sex, 2024
- Women13956%
- Men11144%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Ischemic heart disease48%
- Mood disorders35%
- Anxiety34%
- Atrial fibrillation33%
- Diabetes32%
Share of Medicare patients with each condition. A patient can have several.
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
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Michael Lin Chang wrote 53 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 53 Medicare Part D claims for 44 patients. 92% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $59 in total drug cost.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic49 claims92%
- Brand-name and other4 claims8%
Dr. Chang's most prescribed drugs by claims, 2019
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
- Antibiotics43%23 of 53 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Michael Lin Chang takes part in Medicare
Dr. Chang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Michael Lin Chang received $176 in industry payments from 2020 to 2023
CMS Open Payments shows 4 general payments to Dr. Chang from 3 drug and device companies from 2020 to 2023. Food and beverage make up the largest share, 100% of the total. Galderma Laboratories, L.P. paid the most, $128.
General payments to Dr. Chang by program year, 2020 to 2023
Companies that paid Dr. Chang the most, 2020 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Michael Lin Chang graduated from New York Medical College
Dr. Chang graduated from New York Medical College in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Michael Lin 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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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. Michael Lin 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. Michael Lin Chang's NPI number?
Dr. Michael Lin Chang's NPI number is 1366774697. It was assigned on February 11, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Michael Lin Chang?
Dr. Michael Lin Chang is an emergency medicine physician in Southampton, New York. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Michael Lin Chang practice?
Dr. Chang practices at 240 Meeting House Ln, Southampton, NY 11968. Dr. Chang's primary practice is Southampton Hospital in Southampton, New York. Dmand AI also links Dr. Chang to 1 hospital, 2 medical groups and 1 group practice or clinic.
What is Dr. Michael Lin Chang's office phone number?
The practice phone on file for Dr. Chang is (631) 726-8200.
What is Dr. Michael Lin Chang's medical license number?
Dr. Chang holds New York license 255450.
Which hospitals is Dr. Michael Lin Chang affiliated with?
Dr. Chang is affiliated with Long Island Jewish Medical Center. Dmand AI links Dr. Chang to 1 more hospital.
What medical group is Dr. Michael Lin Chang part of?
Dr. Chang is linked to Meeting House Lane Medical Practice. Dmand AI links Dr. Chang to 2 more medical groups.
Does Dr. Michael Lin Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 357 services in 2024, and Dr. Chang accepts Medicare assignment.
How many Medicare patients does Dr. Michael Lin Chang see?
CMS counts 250 Medicare patients who saw Dr. Chang in 2024, with an average age of 77.
What services does Dr. Michael Lin Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).
Show 4 more questionsShow fewer questions
Where did Dr. Michael Lin Chang go to medical school?
Dr. Chang graduated from New York Medical College in 2008.
What drugs does Dr. Michael Lin Chang prescribe most?
In 2019 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Oxycodone-Acetaminophen.
Has Dr. Michael Lin Chang received payments from drug or device companies?
CMS Open Payments shows $176 in general payments to Dr. Chang from 3 companies from 2020 to 2023. The largest total came from Galderma Laboratories, L.P.
How long has Dr. Michael Lin Chang been practicing?
Dr. Chang graduated from medical school in 2008, 18 years ago.
Selling to emergency medicine practices?
See emergency medicine physicians in New York by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card