Dr. Lian S. Chang, MD
- Medicare services, 2024
- 248
- Medicare patients, 2024
- 38
- Part D claims, 2024
- 737
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 506 E State Parkway, Schaumburg, IL 60173
- Practice phone
- Call (847) 885-2010
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Schaumburg Laboratory Facility
Clinical Lab - Full Service · Schaumburg, Illinois
Find Dr. Chang's professional email, personal email and mobile number
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Dr. Lian S. Chang is a psychiatrist in Schaumburg, Illinois
Dr. Chang practices at Schaumburg Laboratory Facility in Schaumburg, Illinois.
Dr. Chang's NPI, 1629151212, was assigned on October 24, 2006. Dr. Chang graduated from University of Minnesota Medical School in 1990. Dr. Chang holds Minnesota license 38766.
- NPI
- 1629151212NPI Registry (opens in a new tab)
- NPI enumeration date
- October 24, 2006
- NPI status
- Active
- Practice phone
- (847) 885-2010
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Lian S. Chang practices at Schaumburg Laboratory Facility in Schaumburg, Illinois
Dr. Chang's primary practice is Schaumburg Laboratory Facility, at 506 E State Parkway, Schaumburg, IL 60173. The practice phone is (847) 885-2010.
- Schaumburg Laboratory Facility506 E State Parkway, Schaumburg, IL 60173Phone(847) 885-2010
Source: Dmand AI Affiliation Data
Dr. Lian S. Chang is affiliated with 1 site of care
Dr. Chang's primary practice is Schaumburg Laboratory Facility in Schaumburg, Illinois.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Lian S. 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 |
|---|---|
| Schaumburg Laboratory Facility | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Lian S. Chang is one of 1,527 psychiatrists in Illinois
Psychiatry is Dr. Chang's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Chang is licensed in Minnesota.
Specialties and state licenses
- Psychiatry, MinnesotaPrimary
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. Lian S. Chang billed Medicare for 248 services in 2024
CMS data shows 248 Medicare services from Dr. Chang across 1 procedure code in 2024, for 38 Medicare patients. Medicare paid $25,934 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: 2922024: 24815%
- Tests and treatments
- 2023: 192024: 0100%
Dr. Chang compared with the Illinois median for psychiatrists, 2024
- Dr. Chang
- Illinois median
- Medicare services
- 248vs 20322% above
- Medicare patients
- 38vs 6340% below
- Part D claims
- 652vs 1743.7 times
Medians across 1,588 psychiatrists in Illinois 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Chang and other psychiatrists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Lian S. Chang treated 38 Medicare patients in 2024, average age 65
CMS counts 38 Medicare patients who saw Dr. Chang in 2024. The largest group is under 65, with 16 patients. 75% of them have depression, and 75% have high blood pressure. Their average risk score is 2.36, 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 64, with 49% women.
Dr. Chang's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Chang's Medicare patients by sex, 2024
- Women2258%
- Men1642%
Chronic conditions among Dr. Chang's Medicare patients, 2024
- Depression75%
- High blood pressure75%
- Mood disorders75%
- Schizophrenia and other psychoses75%
- High cholesterol74%
- Alzheimer's and dementia68%
- Anxiety66%
- Diabetes66%
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 64
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Lian S. Chang wrote 737 Medicare Part D claims in 2024
In 2024, Dr. Chang wrote 737 Medicare Part D claims for 51 patients. 95% of them were for generic drugs. CMS names the drug for 652 of them, across 19 drugs with 11 or more claims each, at $125,967 in total drug cost. In 2023, CMS named 1,062 claims across 26 drugs.
Dr. Chang's Part D claims by kind of drug, 2024
- Generic698 claims95%
- Brand-name39 claims5%
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 over17%127 of 737 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: 1,0622024: 65239%
Drugs named by CMS: 19 in 2024, 26 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. Lian S. Chang graduated from University of Minnesota Medical School
Dr. Chang graduated from University of Minnesota Medical School in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Lian S. 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 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) |
| 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. Lian S. 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. Lian S. Chang's NPI number?
Dr. Lian S. Chang's NPI number is 1629151212. It was assigned on October 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Lian S. Chang?
Dr. Lian S. Chang is a psychiatrist in Schaumburg, Illinois. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Lian S. Chang practice?
Dr. Chang practices at 506 E State Parkway, Schaumburg, IL 60173. Dr. Chang's primary practice is Schaumburg Laboratory Facility in Schaumburg, Illinois.
What is Dr. Lian S. Chang's office phone number?
The practice phone on file for Dr. Chang is (847) 885-2010.
What is Dr. Lian S. Chang's medical license number?
Dr. Chang holds Minnesota license 38766.
Does Dr. Lian S. Chang accept Medicare?
Yes. CMS data shows Dr. Chang billed Medicare for 248 services in 2024.
How many Medicare patients does Dr. Lian S. Chang see?
CMS counts 38 Medicare patients who saw Dr. Chang in 2024, with an average age of 65.
What services does Dr. Lian S. Chang bill to Medicare?
In 2024, Dr. Chang's most billed Medicare services were nursing facility care (99310).
Where did Dr. Lian S. Chang go to medical school?
Dr. Chang graduated from University of Minnesota Medical School in 1990.
What drugs does Dr. Lian S. Chang prescribe most?
In 2024 Medicare Part D data, Dr. Chang's most prescribed drugs by claims were Clonazepam, Clozapine and Lurasidone HCl.
How long has Dr. Lian S. Chang been practicing?
Dr. Chang graduated from medical school in 1990, 36 years ago.
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